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xushanbo

新虫 (初入文坛)

[求助] 气相色谱溶液配置 已有1人参与

10ppm二氯乙烷溶剂是甲醇配成1ppm最终放到水里,是先用甲醇稀释成1ppm的溶液放到水里,还是直接用水稀释

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淡淡幽雅

金虫 (著名写手)

【答案】应助回帖

感谢参与,应助指数 +1
二氯乙烷是纯样品还是10ppm的甲醇溶液?
如是二氯乙烷甲醇溶液的话就直接用水稀释;如是纯样品的话就先用甲醇稀释成10ppm,再用水稀释至1ppm
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2楼2017-04-10 20:13:08
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