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D.1方法原理本方法为GB 18877-2009有机-无机复混肥料和GB 15063-2009复混肥料(复合肥料)中氯离子测定方法的补充,适宜于有颜色的腐植酸肥料中微量氯离子含量的测定。以氯离子选择性电极为指示电极,双液接甘汞电极为参比电极,插入试液中组成工作电池。当氯离子浓度在
D.1 Method principle This method is GB 18877-2009 organic - inorganic compound fertilizer and GB 15063-2009 compound fertilizer (compound fertilizer) chloride ion determination method is suitable for the color of humic acid fertilizer trace chloride Determination of content. A chloride ion selective electrode is used as an indicator electrode, a double liquid mercury calomel electrode is used as a reference electrode, and a test cell is inserted into a working cell. When the chloride ion concentration in the