Guangzhou Chemical Industry

摘要

Drinking water hardness is an important indicator of water quality monitoring, water hardness directlyaffects people’s health. The total hardness in drinking water can be determined by ICP-7510. The best measurement conditions were studied, standard curve method was used to quantify, the recoveries were 98. 35% ~99. 35%, RSD were 0. 51% ~2. 92%. The method has the advantages of simple, fast and good reproducibility, detection can be used for drinking water.%生活饮用水中硬度是水质监测中的一项重要指标，饮用水硬度的高低直接影响着人们的身体健康。本文采用等离子体原子发射光谱法( ICP-AES)对饮用水中的钙镁元素进行分析，并计算出饮用水的总硬度。实验过程确定了最佳测量条件，采用标准曲线法定量，样品的加标回收率为98.35%~99.35%， RSD为0.51%~2.92%，实验结果表明该方法具有简单、快速、重现性好等优点，能用于生活饮用水的检测。