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daxia007da
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תÍäΪÄãÏàÓö: ½ð±Ò+25, ·ÒëEPI+1, ¡ï¡ï¡ïºÜÓаïÖú 2012-04-27 13:06:12
תÍäΪÄãÏàÓö: ½ð±Ò+25, ·ÒëEPI+1, ¡ï¡ï¡ïºÜÓаïÖú 2012-04-27 13:06:12
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Abstract: In this paper, in use of hydroxybenzaldehyde on carboxyl benzene hydrazone and copper ions form a complex fluorescence intensity of sensitizing with high selectivity,carry out a new technology that uses fluorescent probes selective to measure copper ions in water samples. The experimental results show that the Britton-Robison, buffer solution (pH = 9.89) in aqueous media, the copper ion concentration and the fluorescence enhancement value (¡÷ PL)was in a good linear relationship, the regression equation is ¦¤PL = 404c (¦Ìmol / L) -1.8, the correlation coefficient R = 0.9906,the linear range is 0.1 to 0.5 ¦Ìmol / L, average recovery is 93% -95%. Contrast to other research methods, this method has a high selectivity, high efficiency, simple features. Key words: hydroxybenzaldehyde on carboxyl benzene hydrazone£»fluorescent probes £»the fluorescence enhancement value £»copper ions |
2Â¥2012-04-27 09:51:38
daxia007da
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3Â¥2012-04-27 10:01:05













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