摘要
采用国产YSC-1阳离子分离柱,用pH 4的草酸、柠檬酸、醋酸钠和亚硫酸钠溶液为淋洗液,用邻菲啰啉、盐酸羟胺为显色剂,测定了大豆种皮提取液中的Fe(Ⅱ)和Fe(Ⅲ)。
Fe(Ⅱ) and Fe(Ⅲ) in extracting solution of soybean hulls were determined by ion chromato-graphy using domestic YSC--1 cation column, pH 4 solution of 3 mmol/L oxalic acid, 6 mmol/Lcitric acid, 25 mmol/L sodium acetate, and 1 mmol/L sodium sulfite as eluent, and solution of3.28×10^(-6) mol/L as color developing agent.
关键词
离子色谱法
铁
大豆种皮
Ion chromatography
Iron
Soybean hulls
