Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1236026 | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy | 2007 | 5 Pages |
Abstract
A new chemiluminescence system was developed for the determination of cysteine by flow injection system. This method is based on the reaction of L-cysteine with Ru(phen)32+ and Ce(IV) to produce chemiluminescence. The calibration curve was linear over the range 8.0 × 10−7 to 4.0 × 10−5 and 4.0 × 10−5 to 1.0 × 10−3 M with a detection limit of 7.0 × 10−7 M (S/N = 3). The relative standard deviation of 4.0 × 10−6 M cysteine was found 3.5% (n = 10). The influence of potential interfering substances was studied. The proposed method was successfully applied for the flow injection determination of cysteine in the real samples with minimum sampling rate of 90 sample/h.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
B. Rezaei, A. Mokhtari,