Casey C E, Neville M C
Am J Clin Nutr. 1987 May;45(5):921-6. doi: 10.1093/ajcn/45.5.921.
Molybdenum and nickel were measured in 62 and 46 samples, respectively, of human milk collected from 13 women between delivery and 38 d postpartum. Trace elements were analyzed by graphite-furnace atomic absorption spectrophotometry, with standard additions to whole milk without pretreatment. Molybdenum levels (mean +/- SD) fell from 15.0 +/- 6.1 ng/mL on day 1 to an apparently constant level of 1-2 ng/mL by 1 mo. Nickel concentrations did not change with time; the overall mean was 1.2 +/- 0.4 ng/mL. Intakes of the elements by infants were calculated with test-weighing data on the fully breast-fed infants of these same mothers. By 1 mo, the average daily intake of molybdenum was 1.5 micrograms; that of nickel was 0.8 microgram.
分别对从13名妇女产后至产后38天收集的62份和46份人乳样本中的钼和镍进行了测量。通过石墨炉原子吸收分光光度法分析微量元素，对未经预处理的全脂牛奶进行标准加入法测定。钼水平（平均值±标准差）从第1天的15.0±6.1 ng/mL下降到1个月时明显恒定的1 - 2 ng/mL水平。镍浓度未随时间变化；总体平均值为1.2±0.4 ng/mL。根据这些母亲纯母乳喂养婴儿的称重测试数据计算婴儿对这些元素的摄入量。到1个月时，钼的平均每日摄入量为1.5微克；镍为0.8微克。
