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【目的】研究母亲体内铅、镉含量以及与母乳、母尿之间关系,指导孕期保健和母乳喂养。【方法】应用石墨炉原子吸收仪测定60例产妇血、乳汁和尿中铅与镉含量。【结果】60例产妇血铅含量平均水平0.497μmol/L,46.6%的产妇血铅高于0.483μmol/L,产妇血铅与母乳铅含量差异有显著性(P<0.05)。产妇血铅水平在0.483μmol/L左右时,母乳中铅含量较低。母血中镉含量与母乳中含量基本相同,两者差异无显著性(P>0.05)。【结论】应积极开展孕妇血铅水平的监测及预防;母乳中铅含量对婴儿的影响较小,母乳喂养对于婴儿是安全的。
【Objective】 To study the relationship between lead, cadmium and mother’s milk and mother’s urine, and to guide the pregnant and breastfeeding during pregnancy. 【Method】 The contents of lead and cadmium in 60 maternal blood, milk and urine samples were determined by graphite furnace atomic absorption spectrometry. 【Results】 The average level of lead in 60 pregnant women was 0.497μmol / L, 46.6% of the pregnant women were higher than 0.483μmol / L, and there was a significant difference in lead levels between the two groups (P <0.05). When the level of maternal blood lead is about 0.483μmol / L, the content of lead in breast milk is low. There was no significant difference between the two groups in the content of cadmium in maternal blood and breast milk (P> 0.05). 【Conclusion】 Blood lead levels in pregnant women should be actively monitored and prevented. Lead in breast milk has less effect on infants, and breastfeeding is safe for infants.