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["Determinación水相中残留有机溶剂含量的测定"

2020-03-18View Original

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"YaYa已尝试使用紫外分分光光度法测定萃余液中的的有机溶剂含量,但结果不理想。测定完吸光度后倒回到试管中的溶液摇晃后再次倒入比色皿中进行测定,吸光度值值发生较大变化。再次倒回摇匀后测定,结果再次发生超过0.0以上的变化。如此反复,无法获得标准曲线。样品测定也是同样的变化。排除仪器原因。观察到到"ece"皿中有细屑浮沉。 过滤器过滤后变好,请求知道原因的指教或者推荐其他测定方法"
Reply #22020-03-18
"¿¿不知道你们组分的是啥这怎么测。试试总总、COD这些"

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