Research on a Flow Injection Analysis System for the Simultaneous Determination of Silicate and Phosphate

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Research on a Flow Injection Analysis System for the Simultaneous Determination of Silicate and Phosphate

更新时间：2023-11-28

- Research on a Flow Injection Analysis System for the Simultaneous Determination of Silicate and Phosphate
- Advanced Engineering Sciences Vol. 40, Issue 4, Pages: 62-65(2008)
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李永生,高秀峰.同时测定磷酸盐/硅酸盐流动注射分析系统的研究[J].工程科学与技术,2008,40(4):62-65.

Research on a Flow Injection Analysis System for the Simultaneous Determination of Silicate and Phosphate. [J]. Advanced Engineering Sciences 40(4):62-65(2008)
李永生,高秀峰.同时测定磷酸盐/硅酸盐流动注射分析系统的研究[J].工程科学与技术,2008,40(4):62-65. DOI：

Research on a Flow Injection Analysis System for the Simultaneous Determination of Silicate and Phosphate. [J]. Advanced Engineering Sciences 40(4):62-65(2008) DOI：

摘要

中文摘要: 为了实现硅酸盐和磷酸盐同时测定，对各种参数如最大吸收波长、钼酸铵酸度、反应温度、反应盘管长度、掩蔽剂酸度等进行了优化；并开发了一个基于钼黄法和流动注射反应速率差分光光度法同时测定硅酸盐和磷酸盐的流动注射分析系统。系统重现性好、简便快速，还可用于在线磷硅化学仪器的研制。本系统的测定范围分别为0.05～30 mg/L (PO43-)

0.1～30 mg/L(SiO32-); 相对标准偏差分别为：0.90%(PO43-)、1.20%(SiO32-)；回收率分别为：97.6%～102.7%、94.8%～98.3

Abstract

Abstract:To realize the simultaneous determination of silicate and phosphate

various parameters

such as maximum wavelength

concentration of ammonium molybdate

reaction temperature

reaction coil length

acidity of masking reagent

have been optimized and a flow injection spectrophotometric system was developed based on molybdenum yellow method and reaction difference rate. The system has simple and rapid testing procedure

good reproducibility

and can been used for the development of an on line phosphate and silicate analyzer. Determination ranges of the system are 0.05～30 mg/L for phosphate and 0.1～30 mg/L for silicate. Relative standard deviations for metasilicate and orthophosphate were ≤ 1.2% and 0.9%

respectively. Recovery ranges of silicate and phosphate in the samples are 98%～103%. Sampling frequency of the method is 60～120 samples/h. It has been used successfully to determine silicate and phosphate in boiler water at power plants.

关键词

流动注射分析磷酸盐硅酸盐同时测定

Keywords

flow injectionphosphatesilicatesimultaneous determination

references

李永生.周静火电厂炉水中超低磷酸盐的反流动注射分析 [J].

,GB/T 12145-1999.

李永生,承慰才,流动注射分析,北京:北京大学出版社,1986.

Li Yongsheng,Gao Xiufeng,Flow injection analysis and application for chemistry analysis,长春:吉林人民出版社,2002.

Li Yongsheng,Wang Zhongjia,Automatic analytical methods for monitoring water quality at power plants with reversed flow injection analysis,Laboratory Robotics and Automation,1995.

Linares P,Lugue M D,Valcarcel M,Flow injection analysis of binary and ternary mixtures of arsenite arsenate and phosphate and silicate,Talanta,1986(11).

Jacintho A O,Kronka E A M,Zagatto E A G,Sequential determination of silicate and phosphate in waters by flow-injection spectrophotometry,Journal of Flow Injection Anal,1989(1).

李永生应用rFIA技术同时测定炉水磷硅在线仪表的探讨 [J].-电力技术1990(1)

Li Yongsheng,An automatic method of on-line FIA cation-exchange pretreating and anion-exchange separating for simultaneous determination of silica and phosphate in biological materials,LRA,1997.

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