Dear all,
I have problem on peak recognition during PFAS quantification. Please check the attachment photo, should I recognise as PFAS compound or only as contaminant? There are any rule for peak quantification, especially for PFAS on LCMS MS.
You have not provided us with any information about your LC-MS analysis method. There are a lot of possible PFAS compounds. Which ones (please be specific) do you wish to identify AND in what (matrix, drinking water etc). A technique for analysis can be reviewed after you have answered these questions. A keyword search on the web (via Search Engine: Google or Bing) can provide many example papers, articles, journals, application notes etc for you to review.
LC-MS is just a type of analytical tool and it must be combined with an appropriate method that has been shown to be selective tor the specific compound(s) under analysis. Learning to develop methods and operate an LC-MS system takes many years. You can obtain high purity standards of the specific PFAS to help make a qualitative ID by LC-MS once you have a proper method developed. Please contact an experienced LC-MS chromatographer to assist you in the sample preparation, method development and instrument operations for best results.
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