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本文提出用反相离子对高效液相色谱法,分离、测定了三组氨羧络合剂NTA-EDTA-HEDTA、EGTA-NTA和EGTA-HEDTA.讨论了pH、有机溶剂和离子对试剂对分离的影响。本法可用于生理盐水、植物营养液和合成洗涤剂中氨羧络合剂的含量测定。
In this paper, three groups of NTA-EDTA-HEDTA, EGTA-NTA and EGTA-HEDTA were separated and determined by reversed-phase ion-pair high performance liquid chromatography.The effects of pH, organic solvent and ion pair reagent on the separation Impact. This method can be used for the determination of the content of ammonia-carboxyl complexing agent in physiological saline, plant nutrient solution and synthetic detergent.