摘要
样品经HNO3-H2O2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La2O3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％．
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 HNO3-H2O2 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%.
出处
《上海大学学报（自然科学版）》
CAS
CSCD
北大核心
2006年第2期200-202,共3页
Journal of Shanghai University:Natural Science Edition
