Method for determining volatile organic compounds in stationary pollution source
A technology of volatile organic compounds and fixed pollution sources, which is used in measuring devices, instruments, scientific instruments, etc., to achieve the effects of improving analysis efficiency, stable and accurate data, and fast and convenient methods.
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[0041] 1. Instruments and reagents
[0042] (1) Instrument
[0043] Gas chromatograph: QCMS-QP2010SE, equipped with hydrogen flame ion detector;
[0044] Chromatographic column: DB-FFAP: 30m*0.32mm*1.00μm; VF-624MS: 60m*0.32mm*1.80μm;
[0045] Thermal desorption: TD-30.
[0046] Assembly of the instrument: a general gas chromatography-mass spectrometer will be equipped with a sample inlet (containing a liquid autosampler and a hundred-bit sample tray, denoted by I1) and a mass spectrometer (MS detector, denoted by D1) , and on this basis, another sample inlet (installed with a thermal desorption device, represented by I2) and a universal detector (FID detector, represented by D2) are installed. This configuration can reduce the efficiency caused by frequent switching on and off of the instrument. Lower problem.
[0047] (2) Reagents
[0048] Methanol: HPLC grade / 4L.
[0049] Carbon disulfide: low benzene grade, ≥99.9%.
[0050] Standards: 22 kinds of VOC mixed standard,...
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