A flow cell optosensor for lead based on immobilized gallocynin in chitosan membrane
Gallocynin immobilized in chitosan membrane has been studied as a sensor element of an optical sensor for lead using a flowing system. By using this set up, lead in solution has been determined in the concentration range from 1.0×10 −1 to 1.0×10 3 ppm with a detection limit of 0.075 ppm. The standar...
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| Veröffentlicht in: | Talanta (Oxford) 2002-09, Vol.58 (3), p.459-466 |
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| creator | Yusof, Nor Azah Ahmad, Musa |
| description | Gallocynin immobilized in chitosan membrane has been studied as a sensor element of an optical sensor for lead using a flowing system. By using this set up, lead in solution has been determined in the concentration range from 1.0×10
−1 to 1.0×10
3 ppm with a detection limit of 0.075 ppm. The standard deviation of the method for the repeatability of lead detection at a concentration of 100 ppm was found to be 2.10%. The response of the sensor was reproducible and can be regenerated by using acidified saturated KNO
3 solution. Interference from foreign ions was also studied at 1:1 mole ratio of Pb(II):foreign ions. |
| doi_str_mv | 10.1016/S0039-9140(02)00308-9 |
| format | Article |
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−1 to 1.0×10
3 ppm with a detection limit of 0.075 ppm. The standard deviation of the method for the repeatability of lead detection at a concentration of 100 ppm was found to be 2.10%. The response of the sensor was reproducible and can be regenerated by using acidified saturated KNO
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| ispartof | Talanta (Oxford), 2002-09, Vol.58 (3), p.459-466 |
| issn | 0039-9140 1873-3573 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_733829925 |
| source | Elsevier ScienceDirect Journals |
| subjects | Analytical chemistry Chemistry Chitosan membrane Exact sciences and technology Flow injection analysis (FIA) General, instrumentation Optical fibre Pb(II) sensor |
| title | A flow cell optosensor for lead based on immobilized gallocynin in chitosan membrane |
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