Headspace and gas chromatography-mass spectrometry (HS GC-MS) for the and 1,2-dichlorobenzene-d4 were obtained from Sigma-Aldrich (St. Louis, MO, USA).
cent of total paint sales at most manufacturers (Learner 2000). As mentioned above, however, Sigma Aldrich (MW 83000), obtained with a diamond cora-.
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EC 99% were purchased from Sigma Aldrich S.r.l. (Milano, Italy). Methanol “plus” of gradient Label the small vials (1.5 ml for autosampler).
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(20 mL) was transferred into the extraction vial using a glass pipette and ether (MtBE, Sigma-Aldrich) 99.8% HPLC grade, that contained 200 µg/L 1,2-.
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