引用本文:
Hui Chen, Li Li, Min Zhou, Yong Jun Ma. Flow-injection chemiluminescence determination of tryptophan using galangin-potassium permanganate-polyphosphoric acid system[J]. Chinese Chemical Letters,
2008, 19(2): 203-206.
doi:
10.1016/j.cclet.2007.10.050
Citation: Hui Chen, Li Li, Min Zhou, Yong Jun Ma. Flow-injection chemiluminescence determination of tryptophan using galangin-potassium permanganate-polyphosphoric acid system[J]. Chinese Chemical Letters, 2008, 19(2): 203-206. doi: 10.1016/j.cclet.2007.10.050
Citation: Hui Chen, Li Li, Min Zhou, Yong Jun Ma. Flow-injection chemiluminescence determination of tryptophan using galangin-potassium permanganate-polyphosphoric acid system[J]. Chinese Chemical Letters, 2008, 19(2): 203-206. doi: 10.1016/j.cclet.2007.10.050
Flow-injection chemiluminescence determination of tryptophan using galangin-potassium permanganate-polyphosphoric acid system
摘要:
A high sensitive flow-injection chemiluminescence (FI-CL) method for the determination of tryptephan has been developed.The method is based on the chemiluminescence reaction of galangin-potassium perrnanganate-tryptophan in polyphosphoric acid (PPA) media.Under the optimized conditions, tryptophan was determined in the range 0.05-10 μg/mL with the detection limit (3σ) of 5.0×10-3 μg/mL.The relative standard deviation (RSD) was 1.0% for 11 replicate determinations of 1.0 μg/mL tryptophan.Three synthetic samples were determined selectively with recoveries in the range from 99.6% to 102.0% in the presence of other amino acids.
English
Flow-injection chemiluminescence determination of tryptophan using galangin-potassium permanganate-polyphosphoric acid system
Abstract:
A high sensitive flow-injection chemiluminescence (FI-CL) method for the determination of tryptephan has been developed.The method is based on the chemiluminescence reaction of galangin-potassium perrnanganate-tryptophan in polyphosphoric acid (PPA) media.Under the optimized conditions, tryptophan was determined in the range 0.05-10 μg/mL with the detection limit (3σ) of 5.0×10-3 μg/mL.The relative standard deviation (RSD) was 1.0% for 11 replicate determinations of 1.0 μg/mL tryptophan.Three synthetic samples were determined selectively with recoveries in the range from 99.6% to 102.0% in the presence of other amino acids.
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Key words:
- Chemiluminescence
- / Flow-injection
- / Galangin
- / Potassium permanganate
- / Tryptophan
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