| 铋磷钼蓝分光光度法测定土壤中磷含量 |
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| 引用本文： | 孙骏.铋磷钼蓝分光光度法测定土壤中磷含量[J].环境监控与预警,2011,3(6):20-22. |
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| 作者姓名： | 孙骏 |
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| 作者单位： | 宁波市环境监测中心,浙江宁波,315012 |
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| 摘 要： | 土壤中磷含量的分析是土壤环境监测的主要项目之一.建立了铋磷钼蓝分光光度法测定土壤中磷含量的新方法,与现有的《土壤全磷测定方法》(GB 9837-88)和土壤总磷快速检测仪方法进行了比较讨论.方法的检出限为5.0 mg/kg,对磷含量为475 mg/kg和292 mg/kg的标准土壤样品进行测定,结果与标准值吻合,其相对...
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| 关 键 词： | 土壤 铋磷钼蓝分光光度法 磷 |
| 收稿时间： | 2010/11/12 0:00:00 |
| 修稿时间： | 2010/12/14 0:00:00 |
Determination of phosphorus content in soil by molybdobismuthylphosphoric blue spectrophotometric method |
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| SUN Jun.Determination of phosphorus content in soil by molybdobismuthylphosphoric blue spectrophotometric method[J].Environmental Monitoring and Forewarning,2011,3(6):20-22. |
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| Authors: | SUN Jun |
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| Affiliation: | SUN Jun (Ningbo Environmental Monitoring Center, Ningbo, Zhejiang 315012, China) |
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| Abstract: | Analyzing concentrations of phosphorus in soil is one of the main items in environmental monitoring. A new method for the determination of phosphorus content in soil by molybdobismuthylphosphoric blue spectrophotometric method was developed in this research. This newly developed method was compared with the existing ＂ total phosphorus determination method in soil＂ （GB 9837-88） and phosphorus fast detector method. The detection limit of the method was 5.0 mg/kg. The spiked soil samples contained 475 mg/kg and 292 mg/kg of phosphorus standard were determined. The results were in agreement with certified values, and the relative standard deviation （RSD, n = 6） were 2. 82% and 6.03% , respectively. The relative error was 3.42% and 9.55% , respectively. This method was simple, sensitive and with good selectivity. The new method can be widely used for the environmental monitoring of phosphorus content in soil. |
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| Keywords: | soil molybdobismuthylphosphoric blue spectrophotometric method phosphorus content |
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