| 光谱学与光谱分析 |
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| FI-KR Non-Separated Method Coupled with FAAS for the Determination of Fe(Ⅱ) and Fe(Ⅲ) in Water |
| WANG Zhong-yuan1, ZHANG Hong-kang2*, FANG Hong-da1, SU Yao-dong3, Gauri S Mittal4 |
1. South China Sea Environment Monitoring Center, Guangzhou 510300, China
2. College of Light Industry and Food, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
3. Department of Chemistry, Tongji University, Shanghai 200092, China
4. University of Guelph, Guelph, Ontario N1G 2W1, Canada |
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Abstract An FI-KR non-separated method coupled with FAAS for the determination of Fe(Ⅱ) and Fe(Ⅲ) was developed. With 60 s of sampling at a flow rate of 6.0 mL·min-1, EF of 41 for Fe(Ⅲ) and 9 for Fe(Ⅱ) were obtained. The precision(RSD，n=11) for Fe(Ⅲ) and Fe(Ⅱ) was 2.3% and 3.1% at the 0.04 mg·L-1 level respectively. When 0.1 ‰φ TEA was used as masking reagent, the recovery rate for Fe(Ⅲ) and Fe(Ⅱ) was from 97% to 101 % and from 96% to 100% respectively.
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Received: 2011-06-23
Accepted: 2011-10-10
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Corresponding Authors:
ZHANG Hong-kang
E-mail: zhkuzhk@163.com
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