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邻苯二甲酸氢钾酸量基准直接用作碱量基准,常会产生偏倚,然而由于一直没有意识到这个问题,以致在最新版本的一些标准中,仍有这样的不当应用。本文对这样的问题及其解决办法进行了讨论。1情况分析目前,在国家标准中,邻苯二甲酸氢钾纯度标准物质和工作基准试剂都是依据羧酸基团(
Potassium hydrogen phthalate acid base benchmarks directly used as a basis for alkalinity, often biased, however, has been unaware of this problem, so that some of the latest version of the standard, there is still such improper application. This article discusses such issues and their solutions. 1 Situation analysis At present, in the national standard, potassium hydrogen phthalate purity standards and working reference reagents are based on carboxylic acid groups (