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qingyu906

木虫 (著名写手)

[求助] 急问:样品的检出浓度为LOD的几十倍有问题吗? 已有1人参与

rt,利用顶空SPME法检测水样品中的氯酚浓度,其中一条审稿意见为: the authors mention the LOD values between 0.015-0.043 micrograms/l, but the concentrations of various phenols detected in the samples were either ~10 fold greater than the LOD values or not detected. This I could not understand this.
  有点疑惑:水样有河水、地表水、污水三种,检出浓度最低0.12,最高9.8ug/L,为什么不能是LOD的几十几百倍或未检出呢?ps:已检出的均在线性范围内的。
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yuanjijoy

木虫 (职业作家)

【答案】应助回帖

没问题,回复审稿时说明问题,比如你检测到的化合物可能来源于工厂废水了等等,你列举的三种水可能含量就有差别。

可能编辑在问你,为何要么是10倍以上,要么检测不出来,怀疑你在编造数据,不然你就多测几组,让数据具有一定分散性。比如LOD的几倍、10多倍、底于LOD,多一些数据,更有可信性。
没错,我就是你的梦中穷人!人穷志不穷!
2楼2017-02-14 18:12:55
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