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guo wai wen zhai
Pages: 78-89
Year: Issue:  2
Journal: Journal of Hygiene Research

Keyword:  空气样品空气采样再生障碍性贫血四乙基铅中毒脱水酶作用浓度皮炎血清胆固醇半数致死浓度血铅;
Abstract: <正> 本文改进了Bock 及Junge 等人应用气相色谱测定水、空气中N2O的方法,省掉了Toepler 泵从而在现场可直接应用气相色谱测定出水、空气中N2O的含量。空气采样:通过三个串联的U型吸附管,用薄膜泵以30~40竔/小时的速度采集15~20 竔空气样品。第一管装烧碱石棉剂,除去大气中的二氧化碳。第二管装五氧化二磷除去水蒸气。
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