文章摘要
王 霞,唐少霞,陈 艳,吴 丹.钼酸铵分光光度法测定高尔夫球场 地表水总磷的方法研究[J].海南师范大学学报自科版,2017,30(1):40-46
钼酸铵分光光度法测定高尔夫球场 地表水总磷的方法研究
Methodologyical Study in Determination of Total Content ofPhosphorus from Water in the Surface of A Golf Coursesby Ammonium Molybdate Spectrophotometric Method
投稿时间:2016-11-26  
DOI:10.12051/j.issn.1674-4942.2017.01.008
中文关键词: 钼酸铵分光光度法  总磷  显色  消解  方法学
英文关键词: ammonium molybdate spectrophotometric method  total phosphorus  coloration  digestion  methodology
基金项目:
作者单位
王 霞 海南椰岛酒业发展有限公司,海南 海口 570113 
唐少霞 海南师范大学 地理与环境科学学院,海南 海口 571158 
陈 艳 海南师范大学 地理与环境科学学院,海南 海口 571158 
吴 丹 海南师范大学 地理与环境科学学院,海南 海口 571158 
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中文摘要:
      针对 GB 11893-1989 钼酸铵分光光度法测定总磷含量过程中出现的显色不稳定问题, 文章探讨显色反应条件(温度、时间)及消解环节对总磷含量测定结果的影响,并对其进行方法学考 察及球场地表水样进行测定. 结果表明: (1)显色条件设定为在 30 °C水浴显色 15 min,试验数据更 加稳定、准确; (2)磷标准溶液必须进行过硫酸钾消解后再显色,然后绘制工作曲线; (3)方法学考察 表明,地表水总磷含量在 0.0~1.2μg/mL 之间线性良好, r = 0.9999,精密度、稳定性、重现性和加样 回收试验的 RSD 均小于 3%, 平均回收率为 98.95%,可用于球场地表水总磷含量的测定.
英文摘要:
      In order to resolve the unstable color appearing and enhance the determination accuracy recorded in GB 11893-1989, this paper studies the reaction temperature and duration time, meanwhile compares the data obtained with/ without sample digestion. After all, the modified method was used to measuring the phosphorus element content of water in the surface of golf courses. The results appeared that (1) the coloring temperature and duration time should be set as 30 °C and 15 min respectively to obtain the more stable and accuracy data; (2) the reaction was colored after digesting by K2S2O8, then the standard solution should be operated; (3) the methodology showed that the linear range between 0.0~1.2μg /mL (for phosphorus content) was fitting good (r = 0.9999), and the RSD values for precision, stability, repeatability and recovery were less than 3%. The average recovery was 98.95%, the conclusion of this study was that the modified method could be used to measuring the phosphorus element content exists in the surface around golf courses.
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