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- W2392415553 abstract "Objective:To investigate the distribution of blood trace elements in the children of Haidian District in near years in order to improve the level of children's health care.Methods:544 children in good health condition at random from Haidian District were selected to be divided into 4 age groups.1 ml of vein blood from each child was collected.The amount of zinc,calcium and iron in the blood were detected by flame atomic absorption spectrophotometry,whereas the amount of blood lead was detected by graphite oven absorption spectrophotometry.Results: ①The level and distribution of lead in the blood: 43.2% children had blood lead higher than 0.1 μg/g,but had no difference in sex.The lead concentration increased with the increasing of age.The lowest blood lead concentration was in the group of 0~1 years old and the highest was in the group of 3~6 years old.②The level and distribution of zinc,calcium and iron in the blood:These three trace elements concentration increased with the increasing of age.The level of blood zinc in the group of 6~12 years old was obviously higher than that in the group of 1~3 years old,whereas the level of blood calcium and iron in the group of 6~12 years old was obviously higher than those in the group of 0~1 years old and had no difference in sex.③There was a great significant difference between the increase rate of the blood lead and the deficient rate of the blood calcium in each group,while the difference between the deficient rate of blood zinc and iron in each group was not obvious.Conclusion:①The level of blood lead is comparatively higher in the pre-school children affected by the surroundings,life habit as well as the air pollution.②The main prevention and treatment period for the deficiency of zinc,calcium and iron is the infant stage.③With the increase in age and the diversification of food,the nutrient status of zinc,calcium and iron should be improved." @default.
- W2392415553 created "2016-06-24" @default.
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- W2392415553 date "2007-01-01" @default.
- W2392415553 modified "2023-09-26" @default.
- W2392415553 title "Analysis of trace elements in various age group of children of Haidian District in Beijing" @default.
- W2392415553 hasPublicationYear "2007" @default.
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