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Spectrofluorimetric Determination of Pb ion in Aqueous Media Using an Optical Sensor
Spectrofluorimetric Determination of Pb ion in Aqueous Media Using an Optical Sensor
Lee, Sang Hak;Seo, Hyo Suk
Journal of the Korean Chemical Society. 2002. Oct, 46(5): 407-411
DOI : http://dx.doi.org/10.5012/jkcs.2002.46.5.407
  • Published : October 20, 2002
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Lee, Sang Hak
Seo, Hyo Suk
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Lee, Sang Hak
Seo, Hyo Suk
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Abstract
A method to determine lead ion in aqueous media using an optical sensor loaded on a fluorescent optode membrane incoporating a metal ion-selective ionophore, a proton-selective chromoionophore and lipophilic anionic sites has been studied. The effects of pH and thickness of membrane on the fluorescence intensity were investigated. The effects of foreign ions such as $Na^+$, $K^+$, $Mn^{2+}$ and $Zn^{2+}$ on the determination of lead ion were also studied. The linear range in the calibration curve for the determination of lead ion was found to be 5.0${\times}10^-7$ to 5.0${\times}$$10^-3$M and the correlation coefficient in this range was -0.99107 under the optimal experimental conditions. The relative standard deviation of the blank signals was 3.0% and the detection limit of lead ion was 5.0${\times}$$10^-9$M.
Keywords
Optical Sensor ;  Lead Ion ;  Spectrofluorimetry
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Citing 'Spectrofluorimetric Determination of Pb ion in Aqueous Media Using an Optical Sensor '
@article{ JCGMDC_2002_v46n5_407} ,title={Spectrofluorimetric Determination of Pb ion in Aqueous Media Using an Optical Sensor} ,volume={5} , url={http://dx.doi.org/10.5012/jkcs.2002.46.5.407}, DOI={10.5012/jkcs.2002.46.5.407} , number= {5} , journal={Journal of the Korean Chemical Society} , publisher={Korean Chemical Society} , author={Sang Hak, Lee and Hyo Suk, Seo} , year={2002} , month={Oct}