What are the reference values for trace elements in children. For boys: 86.3-133.8ug/ml for zinc, 27.7 to 36.4ug/ml for iron, 10.45-13.25ug/ml for copper. 576.4-1103.5ug/ml for calcium, 2.19-8.54ug/ml for manganese, 2.11-10.13ug/ml for lead. Girls: the content of zinc is 89.2-135 points ug/ml, the content of iron is 23.05-31.45ug/ml, the content of copper is 8.75-14.65ug/ml, the content of calcium is 630.1-1128.2ug/ml. the content of manganese is 2.1-8.13ug/ml, the content of lead is 3.02-10.73ug/ml.