| 光谱学与光谱分析 |
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| Synchronous Fluorimetric Determination of the Residues of Three Quinolones in Eel by Partial Least Squares |
| ZHANG Guo-wen1, NI Yong-nian2* |
1. The Key Laboratory of Food Science of Ministry of Education, Nanchang University, Nanchang 330047, China
2. Department of Chemistry, Nanchang University, Nanchang 330047, China |
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Abstract In the present paper, the synchronous fluorimetric spectra of norfloxacin, lomefloxacin chlorhydric acid, and levofloxacin lactate with Δλ=190 nm in a B-R buffer medium of pH 2.87 were measured, and the partial least squares (PLS) method was applied to the quantitative resolution of the seriously overlapped fluorimetric spectra of these compounds. The linear ranges for norfloxacin, lomefloxacin chlorhydric acid, and levofloxacin lactate are 0.016-0.40 μg·mL-1, 0.01-0.336 μg·mL-1 and 0.01-0.336 μg·mL-1, respectively. The limits of detection are 0.012 6 μg·mL-1 for norfloxacin, 0.006 μg· mL-1 for lomefloxacin chlorhydric acid, and 0.007 2 μg·mL-1 for levofloxacin lactate. The analytical results by PLS were compared with principal components regression (PCR) and classical least squares (CLS), and this method was applied to the determination of these three compounds in eel samples with satisfactory results.
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Received: 2004-07-08
Accepted: 2004-10-28
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Corresponding Authors:
NI Yong-nian
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| Cite this article: |
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ZHANG Guo-wen,NI Yong-nian. Synchronous Fluorimetric Determination of the Residues of Three Quinolones in Eel by Partial Least Squares[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2006, 26(01): 113-116.
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| URL: |
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https://www.gpxygpfx.com/EN/Y2006/V26/I01/113 |
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