Suddendorf R F, Cook K K
J Assoc Off Anal Chem. 1984 Sep-Oct;67(5):985-92.
Results from a collaborative study of a method for the determination of 9 elements in infant formula, using inductively coupled plasma emission spectroscopy, are reported. Six collaborators analyzed 6 infant formulas for native and spiked levels of Ca, Cu, Fe, Mg, Mn, P, K, Na, and Zn. The within-laboratory and between-laboratory coefficients of variation were generally (69 of 108 samples) below 9% for all elements determined in all samples. Most of the average recoveries of the elements from spiked samples ranged from 90 to 105%. The method has been adopted official first action for determining Ca, Cu, Fe, Mg, Mn, P, K, Na, and Zn in infant formula.
报道了一项关于使用电感耦合等离子体发射光谱法测定婴儿配方奶粉中9种元素的方法的合作研究结果。6位合作者分析了6种婴儿配方奶粉中钙、铜、铁、镁、锰、磷、钾、钠和锌的天然含量及加标含量。所有样品中所测定的所有元素的实验室内和实验室间变异系数通常（108个样品中的69个）低于9%。加标样品中大多数元素的平均回收率在90%至105%之间。该方法已被首次作为官方方法用于测定婴儿配方奶粉中的钙、铜、铁、镁、锰、磷、钾、钠和锌。
