On-line microwave FIA technique and its application to determination of rhodium and sequential determination of palladium and rhodium

Laboratory Robotics and Automation Pub Date : 2000-04-20 DOI:10.1002/(SICI)1098-2728(2000)12:2<91::AID-LRA8>3.0.CO;2-V

Yanqiao Xiang, Xingguo Chen, Guanbin Li, Zhide Hu, Zhengfeng Zhao, Martin Hooper

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Abstract

An on-line microwave oven was employed in this study to accelerate the coordination reactions between Rh(III), Pd(II), and 2-(3,5-dicloro-2-pyridyl-azo)-5-dimethylaminoaniline (3,5-diCl-PADMA) in HOAc-NaOAc media. Two sensitive flow-injection spectrophotometric methods have been established for the determination of Rh and sequential determination of Rh and Pd, respectively.

Two important parameters in on-line Microwave-FIA, T₁ and T₂, were investigated. The difference in the effect of the microwave irradiation on the reactions was explained. The proposed methods are applied to the determination of Rh in the waste and sequential determination of Pd and Rh in artificial samples with satisfactory results. © 2000 John Wiley & Sons, Inc. Lab Robotics and Automation 12:91–96, 2000

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在线微波FIA技术及其在铑和钯铑连续测定中的应用

在HOAc-NaOAc介质中，利用在线微波炉加速了Rh(III)、Pd(II)和2-(3,5-二氯-2-吡啶偶氮)-5-二甲氨基苯胺(3,5-dicl - padma)的配位反应。建立了两种灵敏的流动注射分光光度法分别测定Rh和顺序测定Rh和Pd。对在线微波fia的两个重要参数T1和T2进行了研究。说明了微波辐照对反应影响的差异。该方法已应用于废物中Rh的测定和人工样品中Pd和Rh的连续测定，结果令人满意。©2000 John Wiley &儿子,Inc。实验室机器人与自动化[j]， 2000

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Laboratory Robotics and Automation

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