| abstract |
The invention relates to a method for measuring pollutants in groundwater of gas stations, and mainly solves the problem of high detection limit of pollutants in the prior art. The invention adopts a method for measuring pollutants in the groundwater of gas stations, collects groundwater samples of gas stations, adds internal standard and substitute solution after pretreatment, and then is blown and concentrated by a solid-liquid automatic purging, trapping and concentrator. , enter the gas chromatography, enter into the mass spectrometer after chromatographic separation, and obtain the quantitative ion current peak area through selective ion scanning. The concentration ratio is the abscissa, and the technical scheme of establishing a standard curve can solve the above problems well, and can be used in the determination of pollutants in the groundwater of gas stations. |