| 流动注射-分光光度法在线测定水中锌 |
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| 引用本文： | 郑立静,洪陵成,杨威,王艳.流动注射-分光光度法在线测定水中锌[J].分析仪器,2010(4):42-45. |
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| 作者姓名： | 郑立静 洪陵成 杨威 王艳 |
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| 作者单位： | 1. 河海大学环境科学与工程学院,南京,210098
2. 江苏德林环保技术有限公司,南京,211103 |
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| 摘 要： | 将GB/T10656-2008锌试剂分光光度法在线化,建立了水中锌的流动注射全自动在线分析法,优化了实验参数。锌浓度在0.01～3.00mg/L范围内呈良好线性关系,检出限为0.003mg/L,对0.50mg/L、1.00mg/L、2.00mg/L的含锌水样连续测定11次,相对标准偏差分别为0.75%、0.42%、0.74%。将该法用于环境水样分析,结果令人满意,回收率在98.5%～107.9%之间。
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| 关 键 词： | 流动注射 分光光度法 锌 |
On-line determination of Zn in water by flow injection analysis-spectrophotometry |
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| Zheng Lijing,Hong Lingcheng,Yang Wei,Wang Yan.On-line determination of Zn in water by flow injection analysis-spectrophotometry[J].Analytical Instrumentation,2010(4):42-45. |
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| Authors: | Zheng Lijing Hong Lingcheng Yang Wei Wang Yan |
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| Affiliation: | 1.School of Environmental Science and Engineering,Hohai University,Nanjing,210098;2.Delin Environmental Instruments Co.,Ltd.,Nanjing,211103) |
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| Abstract: | The spectrophotometric method of GB/T 10656-2008 for the determination of Zn reagent has been converted into an on-line method based on flow injection analysis for the automatic on-line analysis of Zn in water.The experimental parameters are optimized.There is a good linear relationship in the range of 0.01-3.00mg/L with the detection limit of 0.003 mg/L.The water samples with Zn concentrations of 0.50,1.00,2.00mg/L were determined（n=11）,and the RSDs were 0.75%,0.42% and 0.74%,respectively.The method has been used for the analysis of environmental water samples satisfactorily with the recovery of 98.5%-107.9%. |
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