现代科学仪器Issue(6)：162-164,3.
离子色谱法测定奶粉中氯化胆碱、钠、钾、镁、钙的含量
Determination of Choline Chloride,Na^+,K^+, Mg^2+ and Ca^2+ in Milk Powder by Ion Chromatography
曹文军 1崔晗 1沈葆真 1苏海滨 2贺舒文 1黄大亮 1李莉3
作者信息
- 1. 大连出入境检验检疫局庄河办事处,辽宁庄河116400
- 2. 辽宁检验检疫处理集团,辽宁大连116000
- 3. 庄河食品药品监督管理局食品检测中心,辽宁庄河116400
- 折叠
摘要
Abstract
A method was established to determine choline chloride,Na+,K+,Mg2+ and Ca2+ in milk powder by using ion exchange chromatography with conductivity detector.The samples were separated on a IonPac CS-12A(250mm×4 mm) cation exchange column using gradient elution of MSA,and the velocity was 1.0 mL/min.The detection limit of the method was 0.5~10 mg/L.The relative standard deviation of this method is 2.3%-4.7%(n=6)and the recovery is the range of 74.7%~93.5%.The method is accurate and simple,and is suitable for rapid detection choline chloride,Na+,K+,Mg2+ and Ca2+in milk powder.关键词
离子色谱/电导检测器/钠/钾/氯化胆碱/镁/钙Key words
Ion chromatography/Conductivity detector/Choline chloride/Sodium/Potassium/Magnesium/Calcium分类
机械制造引用本文复制引用
曹文军,崔晗,沈葆真,苏海滨,贺舒文,黄大亮,李莉..离子色谱法测定奶粉中氯化胆碱、钠、钾、镁、钙的含量[J].现代科学仪器,2012,(6):162-164,3.
