离子对色谱分析测定双甘膦

Analysis of N-(Phosphonomethyl)iminodiacetic Acid by Ion-pair Chromatography

采用离子对色谱法,以甲醇、水为流动相,C18反相硅胶柱和紫外检测器分离测定双甘膦。结果表明,双甘膦的标准偏差为0.003,变异系数为0.307%,平均回收率为98.96%,线性相关系数r2=0.999。

The quantitative analysis of mixture of N-（phosphonomethyl）iminodiacetic acid by ion-pair chromatography using methanol-water as mobile phase,C18 silica gel column and ultraviolet detector was described in this paper.The results showed that the standard deviation for N-（phosphonomethyl）iminodiacetic acid was 0.003,the coefficient of variation was 0.307%,the average recovery was 98.96%,and the linear correlation was 0.999.