{"id":10064,"date":"2019-01-15T19:51:18","date_gmt":"2019-01-16T01:51:18","guid":{"rendered":"https:\/\/www.thermofisher.com\/blog\/materials\/?p=10064"},"modified":"2026-09-16T16:28:27","modified_gmt":"2026-09-16T21:28:27","slug":"screening-water-samples-for-microplastic-contamination","status":"publish","type":"post","link":"https:\/\/www.thermofisher.com\/blog\/materials\/screening-water-samples-for-microplastic-contamination\/","title":{"rendered":"Screening Water Samples for Microplastic Contamination"},"content":{"rendered":"
\n

Valued at US<\/span><\/span>\u00a0<\/span><\/span>$147 billion per year1<\/sup><\/a><\/span><\/span>, bottled water is the fastest growing beverage market in the world, in large part due to its value as an alternative to tap water and for its purported purity. However, bottled water has now come under scrutiny as a carrier of possibly toxic microplastics.<\/span><\/span>
\n<\/span><\/p>\n

Bottled water is the fastest growing beverage market in the world<\/p><\/div>\n<\/div>\n

\n

Plastic litter, both at the macro and micro scale, is widespread and has accumulated worldwide in the environment. Due to ultraviolet (UV) radiation, oxidation and mechanical forces, plastic items break down into increasingly smaller microplastic fragments, below 5\u2009mm in diameter. Micro-sized fragments such as synthetic fibers from textiles, facial cleansers and many other products also introduce microplastics directly. This has led to a buildup of microplastics of varying sizes in marine sediments and our water supply.<\/span><\/span>\u00a0<\/span><\/p>\n<\/div>\n

\n

While the effects of ingesting microplastics is a controversial topic, the issue should be of concern to both producers and consumers.\u00a0<\/span><\/span>Research by Orb Media, a nonprofit journalism organization based in Washington, D.C.,2<\/sup> <\/a><\/span><\/span>shows that a single bottle can hold dozens or possibly even thousands of microscopic plastic particles.\u00a0 Tests on more than 250 bottles from 11 brands reveal contamination with plastic including polypropylene, nylon, and polyethylene terephthalate (PET).<\/span><\/span>\u00a0<\/span><\/span>One bottle had a concentration of more than 10,000 particles per liter.<\/span><\/span>\u00a0<\/span><\/span>\u00a0<\/span><\/p>\n<\/div>\n

\n

Identifying microplastics in water is now possible<\/span><\/span>.\u00a0<\/span><\/span>We recently released important studies that demonstrate the value of FTIR and Raman\u00a0<\/span>microspectroscopy<\/span>\u00a0i<\/span><\/span>n<\/span><\/span>\u00a0<\/span><\/span>detecting<\/span><\/span>\u00a0microplastics from aqueous samples.<\/span><\/span>\u00a0<\/span><\/p>\n<\/div>\n

\n

FTIR microscopy is ideally suited for the analysis of microplastic particles larger than 10\u00a0<\/span><\/span>\u03bcm<\/span>.\u00a0<\/span><\/span>\u00a0In our study<\/span><\/span>,<\/span><\/span>\u00a0published by our Molecular Spectroscopy specialists, representative spectra from water samples were filtered and dried and then directly placed onto the sample stage of microscopes for\u00a0<\/span>microspectroscopic<\/span>\u00a0analysis.\u00a0<\/span><\/span>\u00a0<\/span><\/p>\n<\/div>\n

\n

Using the polyethylene spectrum\u00a0<\/span><\/span>for\u00a0<\/span><\/span>a reference standard, a correlation map relating to each spectrum in the map was constructed, where the spots from the sample are strongly correlated to polyethylene. After a region from the video image is selected, the software identifies the target particles and proceeds to produce spectra for each particle. These spectra are then searched against a spectral library. The data can then be back<\/span><\/span>–<\/span><\/span>extrapolated through the volume of filtered liquid to provide a semiquantitative measure of the particulate concentrations.<\/span><\/span>\u00a0<\/span><\/p>\n<\/div>\n

\n

For particles smaller than 10\u00a0<\/span><\/span>\u03bcm<\/span>,\u00a0<\/span>Raman<\/span>\u00a0<\/span>imaging<\/span>\u00a0<\/span>microscop<\/span><\/span>y<\/span><\/span>\u00a0<\/span>offers<\/span>\u00a0a\u00a0<\/span>powerful<\/span>\u00a0<\/span>solution<\/span>\u00a0<\/span>with<\/span>\u00a0a\u00a0<\/span>spatial<\/span>\u00a0<\/span>resolution<\/span><\/span>\u00a0down to 0.5\u00a0<\/span><\/span>\u03bcm<\/span>.<\/span><\/span>\u00a0Stud<\/span><\/span>y<\/span><\/span>ing a<\/span><\/span>\u00a0<\/span>sample<\/span>\u00a0of\u00a0<\/span>ocean<\/span>\u00a0<\/span>water<\/span>\u00a0<\/span>collected<\/span>\u00a0<\/span>from<\/span>\u00a0the\u00a0<\/span>Pellestrina<\/span>\u00a0<\/span>beach<\/span>\u00a0in<\/span><\/span>\u00a0the Lagoon of Venice<\/span><\/span>,<\/span><\/span>\u00a0the Raman microscope recognized and located several particles on the alumina filter\u00a0<\/span><\/span>from the optical image. A real-time\u00a0<\/span><\/span>m<\/span><\/span>ultivariate\u00a0<\/span><\/span>c<\/span><\/span>urve\u00a0<\/span><\/span>r<\/span><\/span>esolution provided a chemical identification<\/span><\/span>\u00a0and\u00a0<\/span><\/span>direct visualization\u00a0<\/span><\/span>of the particles of different chemical origins.<\/span><\/span>\u00a0<\/span><\/p>\n<\/div>\n

\n

Read<\/span><\/span>\u00a0More Below<\/span><\/p>\n<\/div>\n

\n

Microplastics in bottled water<\/a><\/span><\/span>
\n<\/span><\/p>\n<\/div>\n

\n

Microplastic identification and characterization by Raman imaging spectroscopy<\/a><\/span><\/span>
\n<\/span><\/span><\/a><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Valued at US\u00a0$147 billion per year1, bottled water is the fastest growing beverage market in the world, in large part due to its value as an alternative to tap water and for its purported purity. However, bottled water has now come under scrutiny as a carrier of possibly toxic microplastics. Plastic litter, both at the<\/p>\n","protected":false},"author":45,"featured_media":10063,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_monsterinsights_skip_tracking":false,"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[977,968],"tags":[943,955],"division":[],"class_list":{"0":"post-10064","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-raman-spectroscopy","8":"category-spectroscopy-spectrometry","9":"tag-environmental","10":"tag-polymer-plastics","11":"entry"},"_selected_authors":[1319],"_selected_reviewers":[],"acf":[],"yoast_head":"\nScreening Water Samples for Microplastic Contamination - Advancing Materials<\/title>\n<meta name=\"description\" content=\"Learn how spectroscopy helps screen water samples for microplastic contamination by identifying polymer particles and supporting environmental analysis.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.thermofisher.com\/blog\/materials\/screening-water-samples-for-microplastic-contamination\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Screening Water Samples for Microplastic Contamination\" \/>\n<meta property=\"og:description\" content=\"Learn how spectroscopy helps screen water samples for microplastic contamination by identifying polymer particles and supporting environmental analysis.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.thermofisher.com\/blog\/materials\/screening-water-samples-for-microplastic-contamination\/\" \/>\n<meta property=\"og:site_name\" content=\"Advancing Materials\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/thermofisher\" \/>\n<meta property=\"article:published_time\" content=\"2019-01-16T01:51:18+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-09-16T21:28:27+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/admin.acceleratingscience.com\/materials\/wp-content\/uploads\/sites\/7\/2019\/01\/water20bottles-1024x683.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1024\" \/>\n\t<meta property=\"og:image:height\" content=\"683\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Carl D. 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