一种用于测定痕量铜离子的流动注射在线富集等离子体炬原子发射光谱法

李永生; 赵博; 孙旭辉

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一种用于测定痕量铜离子的流动注射在线富集等离子体炬原子发射光谱法

化学工程 | 更新时间：2023-11-28

- 一种用于测定痕量铜离子的流动注射在线富集等离子体炬原子发射光谱法
- A new method for determination of trace-level Cu2+ based on flow-injection on-line preconcentration and microwave plasma torch-atomic emission spectrometry
- 工程科学与技术 2009年41卷第5期页码：92-96
- 作者机构：
  
  1. 四川大学化学工程学院
  2. 东北电力学院应用化学系吉林,吉林,13201
- 作者简介：
- 基金信息：
  
  教育部留学回国人员科研启动基金(2300448);四川大学214人才引进振兴计划基金 (No. 0082204127067).
- DOI：
  中图分类号：
- 纸质出版日期：2009，
  
  网络出版日期：2008-9-30，
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李永生,赵博,孙旭辉.一种用于测定痕量铜离子的流动注射在线富集等离子体炬原子发射光谱法[J].工程科学与技术,2009,41(5):92-96.

Li Yong-Sheng, 赵博, 孙旭辉. A new method for determination of trace-level Cu2+ based on flow-injection on-line preconcentration and microwave plasma torch-atomic emission spectrometry[J]. Advanced Engineering Sciences, 2009,41(5):92-96.
李永生,赵博,孙旭辉.一种用于测定痕量铜离子的流动注射在线富集等离子体炬原子发射光谱法[J].工程科学与技术,2009,41(5):92-96. DOI：

Li Yong-Sheng, 赵博, 孙旭辉. A new method for determination of trace-level Cu2+ based on flow-injection on-line preconcentration and microwave plasma torch-atomic emission spectrometry[J]. Advanced Engineering Sciences, 2009,41(5):92-96. DOI：

摘要

中文摘要: 本研究基于流动注射-在线柱预浓集-微波等离子体炬原子发射光谱，对在线浓集测定流路和各种测试条件进行优选，建立了一种测定痕量铜的新方法。得到的优化条件是：样品液富集体积为18mL、富集时间为9min、富集流速为2mL/min、洗脱液流速为1mL/min、洗脱液(HCl)浓度为2mol/L、微波功率为110W、载气流量为1.6L/min、工作气(氩)流量为0.4L/min、激发波长324.8nm。在优选条件下，本方法的测定范围为2-40g/L(y = 41.727x-5.9883

r = 0.9994)，检出限达到1.0μg/L，相对标准偏差为2.66% (n=11)，回收率为96-104%。本方法无需用手工进行繁杂的样品前处理，简便易行，灵敏度高，已成功用于火电厂水汽样品中痕量铜的测定。

Abstract

Abstract:A new method for determining trace-level copper ion was proposed based on flow-injection on-line preconcentration and microwave plasma torch atomic emission spectrometry. Optimized determination conditions were as follows: the volume of sample solution for preconcentration was 18 mL

the time and flow rate for the preconcentration were 9.0 min and 2.0 mL/min

respectively; the flow rate and concentration of the eluant (HCl) were 1.0 mL/min and 2.0 mol/L

respectively; the power of microwave was 110W

the flow rate of the carrier gas was 1.6L/min

the flow rate of the working gas (argon) was 0.4L/min

and the excitation wavelength was 324.8nm. Under optimized conditions

determination range of the method was 2-40 g/L(y = 41.727x-5.9883

r=0.9994)

its detection limit was 1.0μg/L

relative standard diviation was 2.66% (n=11)

and recovery was 96-104%. The method was without complicated operation to the sample pretreatment

its automaticity was good and sensitivity was higher. The approach has been applied successfily to the determination of Cu2+ in water-steam system at power plants.

关键词

在线富集流动注射等离子体炬原子发射光谱痕量铜

Keywords

on-line preconcentrationflow injectionmicrowave plasma torchatomic emission spectrometrytrace-level copper.

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