The gas atmosphere was analyzed using a noncalibrated mass spectrometer in a multiple ion detection mode (QMS200 from Pfeiffer).
The gas atmosphere was analyzed using a non-calibrated mass spectrometer in a multiple ion detection mode (Pfeiffer Omnistar).
Detection and quantification were by gas chromatography/mass spectrometry in the multiple ion detection mode.
Samples were analyzed using gas chromatography/mass spectrometry in multiple ion detection mode.
We quantified concentrations of pesticides using gas chromatography/mass spectrometry in the multiple ion detection mode.
To cover the broad suite of organic analytes of interest, we used three different extraction methods, each combined with GC/MS in the multiple ion detection mode, for detection and quantification.
Dust was extracted with 1 1 hexane:DCM, and extracts were analyzed using negative chemical ionization gas chromatography (GC /mass spectrometry (MS) in multiple ion detection mode (see Supplemental Material, "Analytical method for quantification of the PBDEs").
Concentrated extracts were analyzed with an electron impact gas chromatrography mass spectrometer in the multiple ion detection mode (Phenomenex ZB-35 column, 30 m × 0.25 mm ID, 0.25 μm film) with temperatures programmed from 130-340°C 130-340°Cn.
Finally we analyzed 12 PAHs (phenanthrene, anthracene, fluoranthene, pyrene, benzo[ a]anthracene, chrysene, benzo[ b]fluoranthene, benzo[ k]fluoranthene, benzo[ a]pyrene, indeno[ 1,2,3-c,d]pyrene, dibenzo[ a,h]anthracene, and benzo[ g,h,i]perylene) using gas chromatography mass spectrometry in the multiple ion detection mode.
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