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钙、镁为人体组织中的必需元素,国内对成人血清中钙、镁含量报道较多,中小学生的情况报道较少。我们于1988年测定了中小学血清钙、镁含量。现报告如下。1 对象和方法对象:调查对象为上海市区健康的中小学生,共102名,其中男生55名,女生47名,年龄为6～15岁。方法:取清晨空腹静脉血,分离血清。血清用0.1％硝酸镧溶液稀释。采用日立180-70型原子吸收分光光度计和自制的聚四氟乙烯微量进样杯,以脉冲式进样100μl稀释血清,测定钙、镁含量,并与常规的进样法测定结果作配对t检验。2 结果和讨化 102名中小学生血清钙、镁含量按性别和年龄(≤
Calcium and magnesium are the necessary elements in human tissues. There are more reports of calcium and magnesium in the serum of adults in China. There are few reports on the situation of primary and secondary students. We measured the primary and secondary serum calcium and magnesium in 1988. The report is as follows. 1 Subjects and Methods Subjects: The survey included 102 healthy primary and secondary school students in Shanghai, including 55 boys and 47 girls, aged 6-15 years. Methods: Take fresh fasting venous blood, serum was separated. Serum diluted with 0.1% lanthanum nitrate solution. Using Hitachi 180-70 Atomic Absorption Spectrophotometer and homemade Teflon microinjection cup, the serum was diluted with 100μl pulsed injection to determine the content of calcium and magnesium, and paired with the conventional injection method t test. 2 Results and discussion 102 primary and secondary serum calcium, magnesium content by sex and age (≤