| abstract |
The invention provides a kind of method for quantitatively detecting organophosphorus pesticide chlopyrifos in surrounding air, belong to the detection method field of persticide residue, its step includes sample (gas phase portion and particulate matter part) collection, sample pre-treatments and chromatographic tandem mass spectrum and quantitatively detected, detection of the present invention to surrounding air Chlorpyrifos is made by the optimization to chromatographic mass spectrometry detection method parameter, more literature procedure has preferably selectivity and higher sensitivity.The drawbacks of present invention solves conventional detector the selectivity of trace chlopyrifos compound and sensitivity can not get both in detection of complex background matrix using the multiple-reaction monitoring technology of high performance liquid chromatography/tandem mass spectrum, qualitative, quantitative is more accurately and reliably, therefore relative to traditional UV Vis, HPLC/PDA, GC/ECD, GC/NPD, there is obviously advantage. |