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水硬度和镁的现行分析法有络合滴定法等,近年来发展了离子选择电极法。两价阳离子选择电极(俗称水硬度电极)具有对钙、镁离子完全相同的响应,可用于水硬度的测定。如果能将钙离子有效地加以掩蔽,也可以用它来测定镁。电极法测量设备简单,操作方便,易于实现连续和自动测定,同时可以在比色法无法胜任的高色度溶液中进行测定。我们用自制火棉胶基质膜两价阳离子选择电
Water hardness and magnesium analysis of the existing method of complexometric titration, etc., in recent years developed the ion-selective electrode method. Divalent cation-selective electrode (commonly known as water hardness electrode) has exactly the same response to calcium and magnesium ions and can be used to determine the hardness of water. If calcium ions can be effectively masked, it can also be used to determine magnesium. Electrode method measurement equipment is simple, easy to operate, easy to achieve continuous and automatic determination, and can not be qualified in colorimetric high-color solution was measured. We use homemade collodion matrix membrane bivalent cation selection of electricity