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海洋科学  2008 

自动电位滴定仪高效高精度测定海水碱度值

, PP. 77-80

Keywords: 总碱度,自动电位滴定,最大等当点

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Abstract:

为研究海洋碳循环和海洋碳酸盐系统,需要测定样品的碳酸盐碱度。利用电位滴定仪(万通~(?)798MPTTitrino)配合软件tiamol.1检测了海水总碱度。根据碳酸盐解离常数计算出了海水碳酸盐碱度,相时标准偏差低于0.1%(±2μmol/kg),单个样品用量约25mL,检测时间约9min。实验结果表明,用自动电位滴定仪测定海水总碱度速度快,精度高,方法可行。

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