| 非平衡流动流射分光光度法在线测定痕量铅的研究 |
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| 引用本文： | 訾言勤,陈运生.非平衡流动流射分光光度法在线测定痕量铅的研究[J].分析测试学报,2000,19(6):50-52. |
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| 作者姓名： | 訾言勤 陈运生 |
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| 作者单位： | [1]淮北煤炭师范学院化学系,安徽淮北 [2]淮北市环境监测站,安徽淮北 |
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| 基金项目： | 安徽省工业重点基金,煤炭科研项目,皖科字92-19H8,煤科字96-374,, |
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| 摘 要： | 采用流动注射分析技术,研究了碱性介质中铅与ｍｅｓｏ－四－（４－三甲铵基苯）卟啉高灵敏的显色反应,用自制的微机化流动注射分析仪准确控制反应时间,利用非平衡法原则,优化了实验条件,建立了在线测定痕量铅的新方法。线性范围为０．００－２．００ｍｇ／Ｌ,分析速度每小时测定１２０次,方法适用于直接测定煤矿井水、鱼塘水、电场废水和自来水中的铅,所得的结果令人满意。
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| 关 键 词： | 铅 流动注射分析 分光光度法 水 环境监测 |
Non-equilibrium Flow Injection Spectrophotometry for Pb2+ On-line Determination |
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| ZI Yan-qin,CHEN Li-guo,CHEN Yun-sheng.Non-equilibrium Flow Injection Spectrophotometry for Pb2+ On-line Determination[J].Journal of Instrumental Analysis,2000,19(6):50-52. |
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| Authors: | ZI Yan-qin CHEN Li-guo CHEN Yun-sheng |
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| Abstract: | The colour reaction of Pb2 with meso -tetrakis -(4- trimethylammoniumphenyl ) porphyrin in alkaline medium was studied. The experimental conditions were optimized by using self- made micro- computerized flow injection spectrophotometric analyzer, and a new analytical method for the on -line determination of Pb2 based on non - equilibrium principle was established. The linear range of the method is 0.00-2.00 mg/L for Pb2 , and its analytical rate is 120/h. It is suitable for the determi- nation of trace lead in mine water, fishpond water, power plant waste water and well water with satis- factory results. |
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| Keywords: | Lead Flow injection analysis Spectrophotometry meso - Tetrakis - (4 -trimethylammonium- phenyl) porphyrin Water |
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