Simultaneous determination of nitrilotriacetic acid, ethylenediaminetetra-acetic acid and diethylenetriaminepenta-acetic acid as their methyl ester derivatives by GLC
Simultaneous determination of nitrilotriacetic acid, ethylenediaminetetra-acetic acid and diethylenetriaminepenta-acetic acid as their methyl ester derivatives by GLC
复制标题
气相色谱法同时测定次氮基三乙酸、乙二胺四乙酸和二亚乙基三胺五乙酸的甲酯衍生物
DOI：
10.1016/0043-1354(72)90039-5
复制
发表时间：
1972
期刊：
影响因子：
12.8
通讯作者：
L. Rudling
中科院分区：
文献类型：
--
作者：
L. Rudling
报道了一种测定硝基三乙酸（NTA）、乙二胺四乙酸（EDTA）和二乙三胺五乙酸（DTPA）的专用方法。水样，蒸发至干燥后，用甲醇/三氟化硼混合物处理。所得的甲酯衍生物经GLC分析。EDTA和DTPA的浓度可低至0.01 mg 1−1，NTA的浓度可低至0.2 mg 1−1。
A specific method for the determination of nitrilotriacetic acid (NTA), ethylenediaminetetra-acetic acid (EDTA) and diethylenetriaminepenta-acetic acid (DTPA) is reported. The aqueous sample, after evaporation to dryness, is treated with a methanol/borontrifluoride mixture. The resulting methyl ester derivatives are analysed by GLC. Concentrations down to 0·01 mg 1−1for EDTA and DTPA, and 0·2 mg 1−1for NTA, can be determined.