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ARS Home Office of Communications Images Photos Sept20





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D4217-1headline bar  A chemist preparing sampling materials for analysis in a lab hood**Image Number D4217-1** After the POCIS are collected from the field sites, the discs inside are removed in the lab and processed. Rebecca Plummer, a chemist with HRSL, processes the matrix inside the discs to prepare it for analysis on a liquid chromatograph tandem quadrupole mass spectrometer (LC-MS/MS). This new method is faster and requires laboratory processing which allows for more samples to be processed.  Photo by Peggy Greb. 640 pixels wide: (D4217-1.jpg)   Please visit our Image Gallery.


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