氯对测定化合水的影响及其校正研究
Interferences of Chlorine on Determination of Combined Water and Their Correction
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摘要: 用差热和热(失)重法、pH值检验、离子色谱等分析方法考察和证实了Cl-对平菲尔特管重量法测定化合水(H2O+)的干扰,研究其影响规律,提出用系数校正方法可获得H2O+的准确结果。方法用于含氯深海沉积物和大洋多金属结核标准物质中H2O+的定值分析,取得满意结果Abstract: Interferences of chlorine on determination of combined water (H 2O ) by Penfield gravimetry were investigated with differential thermometry, thermogravimetry and ion chromatography. A method based on correction coefficient for the interference correcti