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煤質分析中常見的溶液

发布时间：2012-05-25 点击次数：1230次

1、標准滴定溶液。即確定了准確的濃度、用天滴定分析的溶液。

2、基准溶液。由基准物質制備或者用多種方法標定過的溶液，用于標定其他溶液。

3、標准溶液。由用于制備的物質而准確的知道某種元素、離子、化合物或者基團濃度的溶液，這類溶液的濃度均應用克每升（g/L）或用其分倍數來表示。比色分析經常的使用這一類溶液。

4、標准對比溶液。已准確知道或者已規定有關特性（如色度、濁度）的溶液，用來評價與其特性的有關的試驗溶液。它可以由上面的三種溶液或者具有所需特性的其他溶液相配制，通常在比色分析中繪制工作曲線時使用。

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