Determination of chromium and beryllium at the picogram level by gas chromatography-mass spectrometry.
D000397:Air Pollution / Q000032:analysis; D001608:Beryllium / Q000032:analysis*; D002849:Chromatography, Gas; D002857:Chromium / Q000097:blood*; D006801:Humans; D013058:Mass Spectrometry; D013057:Spectrum Analysis
D002857:Chromium; D001608:Beryllium