乳化法-FAAS法测定奶茶粉中的钙

Determination of Calcium in Milk Tea Powder with Emulsification Method by Flame Atomic Absorption Spectrometry

本文采用乳化法将奶茶粉样品用乳化剂ＯＰ乳化成分散均匀且稳定的乳浊液，直接喷入空气－乙炔火焰中，以标准加入法测定钙含量。测定结果与灰化法一致，检出限０．０２１μｇ·ｍＬ－１，ＲＳＤ小于２．８４％，方法简便、快速、准确。

Milk tea powder was made to a stable and uniformity emulsion using emulsifier OP.The emulsion was injected into the airacetylene flame.The standard addition method was used to determine calcium.The results obtained agree well with those by ashing method.This method is simple and accurate.