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Screening of Pollutants in Environmental Waters

Pharmaceuticals and Personal Care Products; Veterinary drugs; Endocrine Disrupting Compounds; Pesticides; Metabolites, within each category hundreds of substances are known!

In environmental analysis, the number of organic pollutants being detected is increasing. These range from well-known pesticides and persistent pollutants to an increasingly complex array of pharmaceuticals and metabolites. A new approach is needed in order to overcome these analytical challenges.

The National Laboratory Service (NLS) offers a comprehensive screening package that provides a cost-effective solution in the identification and detection of organic contaminants.

Why choose screening?

  • Because it’s not possible to monitor for everything everywhere
  • When a strategy of adopting a full suite of analysis is likely to be cost prohibitive
  • Rapid response to environmental & homeland security threats
  • To assess the pressures and risks to land, sea and water

 

GC-MS based screening – Target based screening of environmental waters

GC-MS is a well established technique used for the full-scan screening of non-polar organic environmental pollutants.

The NLS already offers a GC-MS screening tool for the target based, multi-residue screening of volatile (VOCs) and semi-volatile compounds (SVOCs), utilising full-scan mass spectrometry. The method uses a retention time locked, custom built target MS database with > 1050 compounds, allowing for the identification and measurement of a wide range of organic pollutants in any given water body.

GCMS Target Based MR Screen; Test code 940

 

LC-MS based screening – New challenges, new approach

During the past decade mass spectrometry based on time-of-flight technology (TOF-MS) has shifted the focus of chemical analysis to polar water contaminants. Dramatic improvements in sensitivity and selectivity have made LC with high resolution MS (LC/MS Q-TOF) the method of choice.

The introduction of an LC-MS screen method to the NLS’s screening workflow has enabled the analysis of a broad range of polar organic pollutants.

LCMS Screen; Test code 118

It is now possible to separate and detect a very broad range of chemical compounds using only two analytical methods.

To discuss how the NLS could help you, please contact our Customer Service team.

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