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| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Cao, Qiu-E | - |
| dc.contributor.author | Zhao, Yunkun | - |
| dc.contributor.author | Hu, Zhide | - |
| dc.contributor.author | Xu, Qiheng | - |
| dc.date.accessioned | 2013-06-03T06:19:16Z | - |
| dc.date.available | 2013-06-03T06:19:16Z | - |
| dc.date.issued | 2001-12 | - |
| dc.identifier.issn | 0975-0975(Online); 0376-4710(Print) | - |
| dc.identifier.uri | http://hdl.handle.net/123456789/18639 | - |
| dc.description | 1344-1347 | en_US |
| dc.description.abstract | A flow injection method for fluorescence determination of cysteine using 5-(3-fluo-4-chloropheny lazo)-8-benzenesulfonamidoquinoline (FCPBSQ), a new fluorescence reagent, has been proposed. The method is based on the quenching of fluorescence in the Cu(II)-FCPBSQ system by cysteine in nearly neutral medium. Under the optimum conditions, the fluorescence quenching intensity increases linearly with increase in the concentration of cysteine in the range of 0.050-6.0 μg/ml. The detection limits of this method is 0.010 μg/ml with a sample frequency of 64h-1. The method is free of interference from several metal ions and amino acids without -SH group and has been successfully applied for the determination of cysteine in the pharmachemical samples. The mechanism of the fluorescence quenching is also discussed. | en_US |
| dc.language.iso | en_US | en_US |
| dc.publisher | NISCAIR-CSIR, India | en_US |
| dc.rights |  CC Attribution-Noncommercial-No Derivative Works 2.5 India | en_US |
| dc.source | IJC-A Vol.40A(12) [December 2001] | en_US |
| dc.title | Study on the flow injection method for the determination of L-cysteine with a Cu(II) complex by fluorescence quenching | en_US |
| dc.type | Article | en_US |
| Appears in Collections: | IJC-A Vol.40A(12) [December 2001] | |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCA 40A(12) 1344-1347.pdf | 809.47 kB | Adobe PDF | View/Open |
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