沙土中有机挥发物及无机物的测定研究

Research on Determination of Volatile Organic and Inorganic Substances in Sandy Soil

采用吹扫捕集-气质联用、顶空进样-气质联用、X射线荧光光谱法和二乙基二硫代氨基甲酸银分光光度法4种方法测定沙土中所含有的挥发性有机物以及无机物,检测出沙土中含有2-乙基己醇等5种有机挥发物和砷一种有害的无机物,对比了4种分析方法的效果。

Four detecting methods are separately adopted to measure the volatile organic and inorganic components in sandy soil including purge and trap-gas chromatography/mass spectrometry and headspace-gas chromatography/ mass spectrometry and X ray fluorescence spectrometry and spectrophotometry with silver diethyldithiocarb nate （Ag-DDC）. It is detected that the soil consists of a kind of poisonous mineral-arsenous compound and five varieties of volatile organic matter such as 2-ethyl-hexanol and n-octyl alcohol and others.