RAPID SIMULTANEOUS ANALYSIS OF 1-NAPHTHOL AND 2-NAPHTHOL IN WATER SAMPLES BY DERIVATIVE VARIABLE-OFFSET SYNCHRONOUS FLUORESCENCE SPECTROSCOPY

被引:0
作者
LI, YQ
HUANG, XZ
XU, JG
CHEN, GZ
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中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Derivative variable-offset synchronous fluorescence spectroscopy is developed to improve the spectral resolution and the selectivity of fluorescence measurements. 1-naphthol and 2-naphthol are employed to evaluate the proposed coupled technique and the various spectral comparisons arc conducted. Second derivative variable-offset synchronous scanning permits the rapid simultaneous identification and quantitative determination of 1-naphthol and 2-naphthol in a mixture from a single spectrum. 6.7-2000 ng/ml 1-naphthol and 3.6-500 ng/ml 2-naphthol can be quantified with 1-naphthol and 2-naphthol ratios of 40:1-1:10. The determination of 1-naphthol and 2-naphthol in various spiked water samples gave a mean recovery of 100.7% with a relative standard deviation of 2.8% for 1-naphthol and mean recovery of 99.7% with a relative standard deviation (RSD) of 2.6% for 2-naphthol, respectively.
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页码:695 / 701
页数:7
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