期刊文献+

ICP-OES法测定饮用天然矿泉水中总硬度 被引量:5

Determination of Total Hardness in Drinking Natural Mineral Water by ICP-OES
下载PDF
导出
摘要 开展ICP-OES法间接测定饮用天然矿泉水中总硬度的方法研究。利用ICP-OES法直接测定饮用天然矿泉水中钙和镁离子的含量,然后通过相关计算得出待测样品的总硬度值。结果表明,ICP-OES测定钙的检测限为7.8μg/L,线性系数为0.999 7,加标回收率在98.1%-102.5%之间;测定镁离子的检测限为3.9μg/L,线性系数为0.999 8,加标回收率在98.5%-103.2%之间。结论 ICP-OES法与国标方法相比差异无统计学意义,并且ICP-OES法具有快速简便、准确高效、抗干扰能力强等优点。 To develop a method for determination of total hardness in water by ICP-OES. Methods The total hardness in water was determined indirectly. Firstly we determined the total content of Ca and Mg with ICP-OES,then changing the results to total hardness. Results The detect limit of Ca was 7.2 μg/L,the linear correlation was 0.999 7,and the recovery rates was 98.1 %-102.5 %. The detect limit of Mg was 3.9 μg/L,the linear correlation was 0.999 8,and the recovery rates was 98.5 %-103.2 %. Conclusion There's no significant difference between the results of ICP-OES and national standard method. Also the ICP-OES method has the advantages of rapid,accurate,simple and little disturbance.
出处 《食品研究与开发》 CAS 北大核心 2016年第20期167-168,共2页 Food Research and Development
关键词 饮用天然矿泉水 电感耦合等离子体发射光谱 总硬度 drinking natural mineral water ICP-OES total hardness Ca Mg
  • 相关文献

参考文献2

二级参考文献3

共引文献6

同被引文献61

引证文献5

二级引证文献10

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部