{"id":5272,"date":"2026-02-05T15:42:35","date_gmt":"2026-02-05T14:42:35","guid":{"rendered":"https:\/\/www.ofg-analytik.de\/?page_id=5272"},"modified":"2026-04-16T15:47:42","modified_gmt":"2026-04-16T13:47:42","slug":"analysis-of-qac-in-disinfectants","status":"publish","type":"page","link":"https:\/\/www.ofg-analytik.de\/en\/examples\/analysis-of-qac-in-disinfectants\/","title":{"rendered":"Quaternary ammonium compounds"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"5272\" class=\"elementor elementor-5272 elementor-5271\" data-elementor-post-type=\"page\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-483464a elementor-section-content-top elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"483464a\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-9180508\" data-id=\"9180508\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3e3ccdc elementor-widget elementor-widget-heading\" data-id=\"3e3ccdc\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.22.0 - 24-06-2024 *\/\n.elementor-heading-title{padding:0;margin:0;line-height:1}.elementor-widget-heading .elementor-heading-title[class*=elementor-size-]>a{color:inherit;font-size:inherit;line-height:inherit}.elementor-widget-heading .elementor-heading-title.elementor-size-small{font-size:15px}.elementor-widget-heading .elementor-heading-title.elementor-size-medium{font-size:19px}.elementor-widget-heading .elementor-heading-title.elementor-size-large{font-size:29px}.elementor-widget-heading .elementor-heading-title.elementor-size-xl{font-size:39px}.elementor-widget-heading .elementor-heading-title.elementor-size-xxl{font-size:59px}<\/style><div class=\"elementor-heading-title elementor-size-default\">Application examples<\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a105333 elementor-widget__width-initial elementor-widget elementor-widget-heading\" data-id=\"a105333\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Quaternary ammonium compounds (QACs) in disinfectants as an unknown cause of damage<\/h1>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-31e42e3 elementor-section-content-top elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"31e42e3\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-ee5b1ca\" data-id=\"ee5b1ca\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-b62b744 elementor-widget elementor-widget-heading\" data-id=\"b62b744\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">The Uncontrolled Spread of Cleaning Agents and Its Consequences for People and Materials: A Surface Analytical Perspective<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a535ba6 elementor-widget elementor-widget-text-editor\" data-id=\"a535ba6\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.22.0 - 24-06-2024 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#69727d;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#69727d;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<p><img fetchpriority=\"high\" decoding=\"async\" class=\"size-medium wp-image-5373 alignright\" src=\"https:\/\/www.ofg-analytik.de\/wp-content\/uploads\/2026\/02\/Reinigung-Desinfizierung-Industrie-300x200.png\" alt=\"\" width=\"300\" height=\"200\" srcset=\"https:\/\/www.ofg-analytik.de\/wp-content\/uploads\/2026\/02\/Reinigung-Desinfizierung-Industrie-300x200.png 300w, https:\/\/www.ofg-analytik.de\/wp-content\/uploads\/2026\/02\/Reinigung-Desinfizierung-Industrie-1024x683.png 1024w, https:\/\/www.ofg-analytik.de\/wp-content\/uploads\/2026\/02\/Reinigung-Desinfizierung-Industrie-768x512.png 768w, https:\/\/www.ofg-analytik.de\/wp-content\/uploads\/2026\/02\/Reinigung-Desinfizierung-Industrie.png 1536w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>In everyday life, using cleaning agents to keep surfaces clean and hygienic is second nature. Due to their germicidal properties and surfactant effects, quaternary ammonium compounds (QACs) are the active ingredient in most cleaning agents and disinfectants, used in industrial, medical and household settings. QACs are cationic biocides with surfactant properties. Examples of common QACs include benzalkonium salts (such as benzalkonium chloride, or BAC) and dialkyldimethylammonium salts (such as DDAC, DSDMA and DTDMAC).   <\/p>\n<p>Because they are so widely used, they are increasingly finding their way into the environment and our daily lives\u2014often unnoticed. However, this trend has far-reaching consequences for health, the environment, and material quality. <\/p>\n<p>Apart from its direct effects on humans (allergies, poisoning), the germicidal effect is undesirable in nature and, for example, in wastewater treatment plants, since many microorganisms perform important functions and QAV exposure can also be one of the causes of the formation of antibiotic-resistant bacteria (MRSA). Furthermore, exposure to QAVs can cause damage to products and materials, such as flow defects, cracks, blisters, and delamination. <\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-2e5af7a elementor-section-content-middle elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2e5af7a\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-a669fc6\" data-id=\"a669fc6\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1235ae8 elementor-widget elementor-widget-heading\" data-id=\"1235ae8\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Analysis of QAVs using TOF-SIMS<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-e59768f elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e59768f\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-da707c6\" data-id=\"da707c6\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-a6f55c8 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"a6f55c8\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p> Quaternary ammonium compounds (QACs) are organic compounds that belong to the group of cationic surfactants. They consist of a hydrophilic (water-soluble) nitrogen-containing head group and a lipophilic (fat-soluble) organic tail. Due to this molecular structure, QACs exhibit excellent surface-active properties. In surface analysis, the TOF-SIMS method (time-of-flight secondary ion mass spectrometry) is used for the chemical characterization of surface substances. Due to its high detection sensitivity, it enables the detection and identification of QACs in trace concentrations. Various sample types can be analyzed\u2014ranging from direct surface analysis and wipe samples to the characterization of aerosol samples (in-house method, see OFG application example F-VII).     <\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-17d5f2e elementor-widget elementor-widget-heading\" data-id=\"17d5f2e\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Case Study 1: QAVs in Medicine<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a211475 elementor-widget elementor-widget-text-editor\" data-id=\"a211475\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>In the medical field, quaternary ammonium compounds (QACs) are used in large quantities on a daily basis. In addition to their use as preservatives or antiseptics, QACs are employed in hospitals and medical facilities as disinfectants for instruments, rooms, surfaces, and floors. In the process, QAC residues often remain invisible, for example on medical devices such as arterial clamps or implant screws. In addition, QACs can also enter the air as aerosols, where they can either be inhaled directly or settle on surrounding surfaces.<br \/>During the manufacture of pharmaceutical products, QACs can also end up on packaging or even on the medications themselves. Consequently, unintended contamination occurs.    <\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-06b8f6b elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"06b8f6b\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-fa0ee50\" data-id=\"fa0ee50\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5f3e947 elementor-widget__width-initial elementor-widget elementor-widget-image\" data-id=\"5f3e947\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.22.0 - 24-06-2024 *\/\n.elementor-widget-image{text-align:center}.elementor-widget-image a{display:inline-block}.elementor-widget-image a img[src$=\".svg\"]{width:48px}.elementor-widget-image img{vertical-align:middle;display:inline-block}<\/style>\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"664\" height=\"248\" src=\"https:\/\/www.ofg-analytik.de\/wp-content\/uploads\/2026\/02\/BAC-Implantatschraube-Spektrum.jpg\" class=\"attachment-2048x2048 size-2048x2048 wp-image-5311\" alt=\"\" srcset=\"https:\/\/www.ofg-analytik.de\/wp-content\/uploads\/2026\/02\/BAC-Implantatschraube-Spektrum.jpg 664w, https:\/\/www.ofg-analytik.de\/wp-content\/uploads\/2026\/02\/BAC-Implantatschraube-Spektrum-300x112.jpg 300w\" sizes=\"(max-width: 664px) 100vw, 664px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">TOF-SIMS spectrum of an implant screw surface<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-d05c86d\" data-id=\"d05c86d\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-8acc49e elementor-hidden-mobile elementor-widget elementor-widget-image\" data-id=\"8acc49e\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"300\" height=\"170\" src=\"https:\/\/www.ofg-analytik.de\/wp-content\/uploads\/2026\/02\/implantat-300x170.jpg\" class=\"attachment-medium size-medium wp-image-5319\" alt=\"\" srcset=\"https:\/\/www.ofg-analytik.de\/wp-content\/uploads\/2026\/02\/implantat-300x170.jpg 300w, https:\/\/www.ofg-analytik.de\/wp-content\/uploads\/2026\/02\/implantat.jpg 305w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-a2b745a elementor-widget elementor-widget-heading\" data-id=\"a2b745a\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Case Study 2: Food<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dab5a3e elementor-widget elementor-widget-text-editor\" data-id=\"dab5a3e\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Quaternary ammonium compounds (QACs) are also widely used in food production. For example, QACs can come into contact with plant-based foods as early as the cultivation stage through the use of plant protection products (pesticides) or fertilizers. In later stages of production during the processing of plant-based or animal-based products, further contamination can occur through hand or surface disinfection. As the process continues, there is a risk that QACs may end up in finished products such as ice cream, salads, or even beverages. Foods high in fat or protein are particularly problematic in this regard, as QACs can easily bind to them due to their lipophilic properties.    <\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-d052281 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d052281\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-ca9fe5e\" data-id=\"ca9fe5e\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-df6fd3c elementor-widget__width-initial elementor-widget elementor-widget-image\" data-id=\"df6fd3c\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/www.ofg-analytik.de\/wp-content\/uploads\/2026\/02\/BAC-Getraenke-Spektrum.jpg\" title=\"BAC-Getr\u00e4nke-Spektrum\" alt=\"BAC-Getr\u00e4nke-Spektrum\" loading=\"lazy\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">TOF-SIMS spectrum of a beverage residue<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-411f4fa\" data-id=\"411f4fa\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-fd8be0e elementor-hidden-mobile elementor-widget elementor-widget-image\" data-id=\"fd8be0e\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"222\" height=\"300\" src=\"https:\/\/www.ofg-analytik.de\/wp-content\/uploads\/2026\/02\/Abb5c-222x300.jpg\" class=\"attachment-medium size-medium wp-image-5377\" alt=\"\" srcset=\"https:\/\/www.ofg-analytik.de\/wp-content\/uploads\/2026\/02\/Abb5c-222x300.jpg 222w, https:\/\/www.ofg-analytik.de\/wp-content\/uploads\/2026\/02\/Abb5c-757x1024.jpg 757w, https:\/\/www.ofg-analytik.de\/wp-content\/uploads\/2026\/02\/Abb5c-768x1039.jpg 768w, https:\/\/www.ofg-analytik.de\/wp-content\/uploads\/2026\/02\/Abb5c-1135x1536.jpg 1135w, https:\/\/www.ofg-analytik.de\/wp-content\/uploads\/2026\/02\/Abb5c-1514x2048.jpg 1514w, https:\/\/www.ofg-analytik.de\/wp-content\/uploads\/2026\/02\/Abb5c-scaled.jpg 1892w\" sizes=\"(max-width: 222px) 100vw, 222px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-b8c3116 elementor-widget elementor-widget-heading\" data-id=\"b8c3116\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Case Study 3: Property Damage in Industry<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-c53a736 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c53a736\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-6b3d9d6\" data-id=\"6b3d9d6\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4da0b43 elementor-widget elementor-widget-text-editor\" data-id=\"4da0b43\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<figure id=\"attachment_5350\" aria-describedby=\"caption-attachment-5350\" style=\"width: 450px\" class=\"wp-caption alignleft\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5349\" src=\"https:\/\/www.ofg-analytik.de\/wp-content\/uploads\/2026\/02\/QAV-Kabelummantelung-Risse.jpg\" alt=\"\" width=\"450\" height=\"250\"><figcaption id=\"caption-attachment-5350\" class=\"wp-caption-text\">Cable sheaths with cracks<\/figcaption><\/figure>\n\nAnother aspect of QAV exposure is that, in addition to posing a threat to the environment, it can also damage everyday materials. In addition to their targeted use as antimicrobial agents or antistatic agents, QAVs can inadvertently end up on the surfaces of a wide variety of products. Accumulations of QAVs, in particular, can lead to serious material damage. In damage analysis, various types of damage such as cracks, blistering, or delamination are observed in plastics and\/or coating systems.   \n\n<figure id=\"attachment_5369\" aria-describedby=\"caption-attachment-5369\" style=\"width: 353px\" class=\"wp-caption alignright\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5368 size-medium\" src=\"https:\/\/www.ofg-analytik.de\/wp-content\/uploads\/2026\/02\/Mikrorisse-Polycarbonat-300x225.jpg\" alt=\"\" width=\"353\" height=\"300\"><figcaption id=\"caption-attachment-5369\" class=\"wp-caption-text\">Microcracks in optical fibers<\/figcaption><\/figure>\n\nThe combination of mechanical stress and a QAV coating can lead to environmental stress cracking (ESC).\n\nOne example is damage to cable jackets in hospitals caused by regular cleaning with QAV-containing agents, or cracking in light guides (polycarbonate) in vehicle interiors.\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-9d6940e elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"9d6940e\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-b4dc0d5\" data-id=\"b4dc0d5\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2b436b1 elementor-widget elementor-widget-image\" data-id=\"2b436b1\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"664\" height=\"287\" src=\"https:\/\/www.ofg-analytik.de\/wp-content\/uploads\/2026\/02\/DSDMA-Lack-Spektrum.jpg\" class=\"attachment-2048x2048 size-2048x2048 wp-image-5315\" alt=\"\" srcset=\"https:\/\/www.ofg-analytik.de\/wp-content\/uploads\/2026\/02\/DSDMA-Lack-Spektrum.jpg 664w, https:\/\/www.ofg-analytik.de\/wp-content\/uploads\/2026\/02\/DSDMA-Lack-Spektrum-300x130.jpg 300w\" sizes=\"(max-width: 664px) 100vw, 664px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">TOF-SIMS spectrum \u201cBubble formation in the coating system\u201d<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-cd438a5\" data-id=\"cd438a5\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-05be222 elementor-widget__width-initial elementor-widget elementor-widget-image\" data-id=\"05be222\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"279\" height=\"173\" src=\"https:\/\/www.ofg-analytik.de\/wp-content\/uploads\/2026\/02\/Blasen-im-Lackmplantat.jpg\" class=\"attachment-large size-large wp-image-5323\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-0275bf7 elementor-widget elementor-widget-heading\" data-id=\"0275bf7\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Summarized: Damage and Material Analysis Using TOF-SIMS<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8df20be elementor-widget elementor-widget-text-editor\" data-id=\"8df20be\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Quaternary ammonium compounds are far more common in our daily lives than is generally assumed. They are not only used in disinfection but are also unintentionally present in industrial production, food manufacturing, and even in packaging materials.<br \/>The consequences are manifold: health risks (e.g., allergies, respiratory diseases), environmental impacts from the destruction of beneficial microorganisms, the potential emergence of antibiotic-resistant pathogens, and material damage to products. The highly sensitive analytical technique TOF-SIMS enables the precise detection and identification of even the lowest concentrations of QACs.  <\/p>\n<p>TOF-SIMS is an effective method for surface analysis. This method allows surfaces to be characterized with high precision and QAVs to be clearly identified.<br \/>The method is not only used to investigate defects and damage. Through preventive analysis, unwanted contamination can be identified at an early stage, thereby helping to prevent damage.  <\/p>\n<p>Please contact us to learn more about our work in surface analysis as well as materials and failure analysis\u2014we would be happy to provide you with practical application examples related to QAV and related topics.<\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-6f7e6b7 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6f7e6b7\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-8ec96c5\" data-id=\"8ec96c5\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-a2d46c8 elementor-widget elementor-widget-heading\" data-id=\"a2d46c8\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h5 class=\"elementor-heading-title elementor-size-default\">Publications<\/h5>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cf65d3c elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"cf65d3c\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>\u00b9<span style=\"font-family: Calibri, sans-serif; font-size: 12pt; letter-spacing: -0.1px;\">H. Feld, N. Oberender in Hygiene &amp; Medizin, 43-5 (2018) D37-D45: &#8220;Die unkontrollierte Verbreitung von quart\u00e4ren Ammoniumverbindungen (QAV) in Alltagsprodukten sowie in medizinischen und industriellen Bereichen \u2013 kritisch f\u00fcr Mensch, Material und Umwelt.<\/span><\/p>\n<p>\u00b2<span style=\"font-family: Calibri, sans-serif; font-size: 12pt; letter-spacing: -0.1px;\">H. Feld in Oberfl\u00e4chen Polysurfaces, 5\/16 (2016) 6-11: Problematische Verbreitung von quart\u00e4ren Ammoniumverbindungen in Alltagsprodukten<\/span><\/p>\n<p class=\"MsoFootnoteText\">\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Application examples Quaternary ammonium compounds (QACs) in disinfectants as an unknown cause of damage The Uncontrolled Spread of Cleaning Agents and Its Consequences for People and Materials: A Surface Analytical Perspective In everyday life, using cleaning agents to keep surfaces clean and hygienic is second nature. Due to their germicidal properties and surfactant effects, quaternary [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"parent":3718,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"inline_featured_image":false,"footnotes":""},"class_list":["post-5272","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.ofg-analytik.de\/en\/wp-json\/wp\/v2\/pages\/5272","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ofg-analytik.de\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.ofg-analytik.de\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.ofg-analytik.de\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ofg-analytik.de\/en\/wp-json\/wp\/v2\/comments?post=5272"}],"version-history":[{"count":8,"href":"https:\/\/www.ofg-analytik.de\/en\/wp-json\/wp\/v2\/pages\/5272\/revisions"}],"predecessor-version":[{"id":5624,"href":"https:\/\/www.ofg-analytik.de\/en\/wp-json\/wp\/v2\/pages\/5272\/revisions\/5624"}],"up":[{"embeddable":true,"href":"https:\/\/www.ofg-analytik.de\/en\/wp-json\/wp\/v2\/pages\/3718"}],"wp:attachment":[{"href":"https:\/\/www.ofg-analytik.de\/en\/wp-json\/wp\/v2\/media?parent=5272"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}