高压密闭非完全消化-FAAS测定奶粉中高含量钙

上海大学学报(自然科学版)

高压密闭非完全消化-FAAS测定奶粉中高含量钙

徐引娟1，张烂漫2,袁惠娟1，汤蔚莉1

1.上海大学理学院，上海 200444; 2.上海市南汇区环境监测站，上海 201300

收稿日期:2005-05-10 修回日期:1900-01-01 出版日期:1900-01-01 发布日期:1900-01-01
通讯作者: 徐引娟1

Determination of High Calcium Content in Milk Powder Using Incomplete DigestionFlame AAS Method

XU Yin-juan1,ZHANG Lan-man2,YUAN Hui-juan1,TANG Wei-li1

1. School of Sciences, Shanghai University, Shanghai 200444, China;
2. Nanhui Environmental Monitoring Station of Shanghai, Shanghai 201300, China

Received:2005-05-10 Revised:1900-01-01 Online:1900-01-01 Published:1900-01-01
Contact: XU Yin-juan1

摘要/Abstract

摘要：

样品经HNO 3-H 2 O 2高压密闭非完全消化，加入聚乙二醇辛基醚（OP-10）乳化剂处理试液，以La 2 O 3为释放剂，用FAAS测定奶粉中高含量钙；同时对消化时间、消化剂以及OP-10用量等进行了优化选择.实验结果表明，此方法回收率达到101%～104%，精密度为0.29%.

关键词: 非完全消化, 钙, 奶粉, 原子吸收光谱

Abstract:

A method of incomplete digestion with flame atomic absorption spectrometry (FAAS) for the determination of high calcium content in milk powder is reported. The sample milk powder was incompletely digested with HNO 3H 2 O 2 in a pressurized vessel. Emulsifier OP-10 and releasing agent lanthanum were added for FAAS determination of calcium. Parameters were optimized. Recovery of the method was in the range of 101%～104% with RSD 0.29%.

Key words: calcium, incomplete digestion, milk power, FAAS

徐引娟;张烂漫;袁惠娟;汤蔚莉. 高压密闭非完全消化-FAAS测定奶粉中高含量钙[J]. 上海大学学报(自然科学版).

XU Yin-juan;ZHANG Lan-man;YUAN Hui-juan;TANG Wei-li. Determination of High Calcium Content in Milk Powder Using Incomplete DigestionFlame AAS Method[J]. Journal of Shanghai University（Natural Science Edition）.

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