光谱学与光谱分析 |
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Determination of Norfloxacin by Flow-Injection Chemiluminescence |
LIAO Su-lan1, 2, XIE Zeng-hong1* |
1. Department of Chemistry, Fuzhou University, Fuzhou 350002,China 2. Nanping Teachers College, Nanping 353000,China |
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Abstract Sodium dodecylsulfate(SDS) can greatly enhance the emission intensity of the weak chemiluminescence reaction of Ce(Ⅳ) with norfloxacin(NFLX) in acid medium. Based on this phenomenon, a simple and rapid new method for the continuous determination of norfloxacin was developed. The calibration graph is linear for 7.78×10-8-5.82×10-6 g·mL-1, the detection limit(3σ) is 1.57×10-8 g·mL-1, and the relative standard deviation (n=10, c=1.94×10-6 g·mL-1) is 1.7%. The method was successfully applied to the determination of norfloxacin in capsules. Additionally, the system’s mechanism was discussed.
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Received: 2004-09-02
Accepted: 2004-12-16
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Corresponding Authors:
XIE Zeng-hong
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