气相色谱-质谱在地下水检测过程中的重要性
Application of Gas Chromatography-Mass Spectrometry in Groundwater Analysis
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摘要: 采用气相色谱法、高效液相色谱法、气相色谱-质谱法对地下水样品中α-HCH、β-HCH、γ-HCH、δ-HCH、p,p'-DDE、p,p'-DDD、o,p'-DDT、p,p'-DDT、六氯苯、苯并(a)芘等组分进行测定时,通过气相色谱-质谱在测量复杂基体待测样品组分中的识别作用、在高浓度待测样品组分检测中的确认作用以及对样品检测结果假阳性现象的判断作用等内容,论证了气相色谱-质谱技术在测定复杂基体或高浓度地下水样品过程中的重要性,确保了地下水调查项目测量数据准确可靠。Abstract: The organic pollutants of α-HCH, β-HCH, γ-HCH, δ-HCH, p,p'-DDE, p,p'-DDD, o,p'-DDT, p,p'-DDT, hexachlorobenzene, benzopyrene in groundwater samples were quantitatively determined by gas chromatography (GC) and high performance liquid chromatography (HPLC). And gas chromatography-mass spectrometry (GC-MS) was also used for the identification of organic pollutants in the samples with complex matrix, especially for the confirmation of the components with high concentration in the samples and also for the judgement of false-positive results. The analytical results indicate that GC-MS plays a very important role in analysis of organic pollutants in groundwater samples.
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Keywords:
- gas /
- chromatography-mass /
- spectrometry /
- groundwater /
- sample
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