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目的:检测我国部分地区居民饮用水中钙离子含量,测定水作为钙源可为我国居民提供的钙含量。方法:采用随机抽样方法分别对五个地区、每个地区的五个采样点进行水样采集,采用原子吸收分光光度法测定水中钙离子浓度。结果:检测出采样地区居民饮用水中钙离子浓度范围在13.5—96.5mg之间。结论:采样地区的居民饮用水作为钙源每天可以给居民提供的钙含量在27—193mg之间。
Objective: To detect the calcium ion content of drinking water in some areas of our country, and to determine the calcium content of water as a calcium source for Chinese residents. Methods: Five sampling points in five regions and five regions were sampled by random sampling method. The concentration of calcium in water was determined by atomic absorption spectrophotometry. Results: The concentration of calcium ion in drinking water of residents in sampling area was detected in the range of 13.5-96.5mg. Conclusion: The drinking water of residents drinking water in sampling area can provide residents with calcium content of 27-193mg daily as calcium source.