电感耦合等离子体质谱法测定小区及家庭用净水机净化水中23种微量元素及净化效果对照

Determination of 23 trace elements in purified water by residential and household purifiers and purification efficacy comparison by inductively coupled plasma mass spectrometry

目的分析对比普通自来水、小区净化水及部分家庭净水器品牌制得的净化水中微量元素含量,比较不同净水设备的净化效果。方法通过电感耦合等离子体质谱法快速分析普通自来水、小区净化水及部分家庭净水器品牌制得的净化水中的23种元素的含量,并对检测数据进行比较。结果分析对比净化前后水中23种微量元素含量的差异,得出净水机的净化效果参差不齐,给相关政府监管部门提供数据支持,建议生产厂家在产品标识或说明书中标注各类元素的去除率,方便消费者辨识和选购。结论建议生产厂家在产品标识或说明书中标注各类元素的去除率,方便消费者辨识和选购。

Objective To analyze the levels of trace elements in tap water,residential purified water and some household water,and to compare the purification effects of different water purifiers. Methods Inductively coupled plasma mass spectrometry (ICP- MS) was used to quickly analyze the levels of 23 elements in normal tap water,residential purified water,and purified water produced by some household water purifier brands,and the test data were compared. Results By analyzing and contrasting the differences in the levels of 23 trace elements before and after purification,it was proved that the purifying effect of the water purifier was uneven. Data support was provided for the relevant supervision departments. It was recommended that the manufacturers mark the removal rates of various elements in product identification or instructions,so as to provide convenience for consumer identification and purchase. Conclusion It is recommended to avoid blind choice of household water purification equipment and that the manufacturer mark the removal rate of elements in product label or instructions,so as to provide necessary information for consumers.