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bomuwang

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[求助] 在线GC检测小分子气体-标准曲线标定

最近看文献,有用在线GC进行气体小分子检测的,在计算产率时,作者的公式里除了乘以标准曲线的标定系数,会额外乘以一个flow rate,考虑进样速度的影响。请问大家,有没有做过在线GC检测的,做在线检测的话,因为气体是不断通过六通阀的,所以自动进样器单位时间进样应该会和样品的flow rate有关,那么这时候,标准曲线怎么标定,是像离线那种,用进样针标定不同浓度,得到校正曲线。还是也要经过一个流速仪,然后让已经被控速的不同浓度气体经过六通阀进行标定,这时候flow rate和进入柱子的气体是线性相关的么。
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