| 光谱学与光谱分析 |
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| Determination of Aluminum in Sediments by Atomic Absorption Spectrophotometer without FIA Spectrophotometric Analysis |
| ZHAO Zhen-yi,HAN Guang-xi,SONG Xi-ming,LUO Zhi-xiong |
| Chemistry Institute of Science and Engineering, Liaoning University, Shenyang 110036, China |
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Abstract To search for a new method of determining, we developed a new flow injection analyzer, applied to the atomic absorption spectrophotometer, relying on it without flame in place of visible spectrophotometer, and studied the appropriate condition for the determination of aluminum in sediments, thus built up a kind of new analytical test technique. Three peak and two valley absorption values (A1, A2, A3, A4 and A5) can be continuously obtained simultaneously that all can be used for quantitative analysis, then we discussed its theory and experiment technique. Based on the additivity of absorbance (A=A1+A2+A3+A4+A5), the sensitivity of FIA is enhanced, and its precision and linear relation are also good, raising the efficiency of AAS. The simple method has been applied to determining Al in sediments, and the results are satisfactory.
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Received: 2006-12-10
Accepted: 2007-03-20
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Corresponding Authors:
ZHAO Zhen-yi
E-mail: sophie0725@126.com
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