OALib Journal期刊
减压吹扫捕集-气相色谱-质谱联用分析水样中的多环芳烃
, PP. 799-803
Keywords: 减压吹扫捕集 ,气相色谱-质谱联用 ,多环芳烃 ,水
Abstract:
建立了减压吹扫捕集-气相色谱-质谱联用分析水样中多环芳烃的方法。采用85μm聚丙烯酸酯固相微萃取纤维作为捕集阱,在40～90℃的样品加热温度和5～90kPa的负压状态下,吹扫捕集水样中的15种多环芳烃,取样量10mL,吹扫时间20min,解析温度340℃,解析时间10min,以进样口作为热解析装置,采用气相色谱-质谱联用法进行测定。15种多环芳烃的线性范围在0.01～201μg/L之间,相关系数均大于0.991;检出限范围在1.1～27.5ng/L之间。6次测定水样的RSD为6.0%～12.7%;水样6次标准加入测定的RSD为5.4%～14.9%;样品平均加标回收率为85.7%～116.1%。
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