| 流动注射光度法测定地热水中可溶性硅 |
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| 引用本文： | 钟红生,张红,李永生.流动注射光度法测定地热水中可溶性硅[J].理化检验(化学分册),2011(9). |
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| 作者姓名： | 钟红生 张红 李永生 |
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| 作者单位： | 四川大学化学工程学院; |
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| 摘 要： | 提出了基于正硅酸与钼酸铵的显色反应和流动注射分析装置的流动注射光度法测定地热水中可溶性硅量的方法。对仪器的各项工作参数,包括显色反应所需钼酸铵溶液的浓度及要求的酸度条件,各反应圈的长度,试剂环的定量体积,流动注射系统出口的流量等做了试验并予以优化,所提出的装置可达到每小时60个样品的进样频率。测定二氧化硅的线性范围为20~800 mg.L-1。应用此法对实样的测定结果与国家标准方法(GB/T 12148-2006)测得的结果相符。
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| 关 键 词： | 流动注射分析 光度法 可溶性硅 地热水 |
FI-Photometric Determination of Dissolved Silica in Geothermal Water |
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| ZHONG Hong-sheng,ZHANG Hong,LI Yong-sheng.FI-Photometric Determination of Dissolved Silica in Geothermal Water[J].Physical Testing and Chemical Analysis Part B:Chemical Analgsis,2011(9). |
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| Authors: | ZHONG Hong-sheng ZHANG Hong LI Yong-sheng |
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| Institution: | ZHONG Hong-sheng,ZHANG Hong,LI Yong-sheng*(School of Chemical Engineering,Sichuan University,Chengdu 610065,China) |
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| Abstract: | A flow injection analytical installation was fabricated for the photometric determination of silicate based on its reaction with ammonium molybdate and applied to the determination of dissolved silica in geothermal water.Various working parameters of the instrument including concentration of ammonium molybdate solution and acidity for the color reaction,lengths of reaction coils,definite volume of reagent ring,flow-rate at the out-let of the system and etc.were tested and optimized.Sampling frequency of 60 ... |
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| Keywords: | FIA Photometry Dissolved silica Geothermal water |
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