Journal
ANALYTICAL SCIENCES
Volume 31, Issue 12, Pages 1249-1253Publisher
JAPAN SOC ANALYTICAL CHEMISTRY
DOI: 10.2116/analsci.31.1249
Keywords
Chemiluminescence; CdTe/CdS QDs; luminol; sinomenine hydrochloride
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Funding
- Natural Science Foundation of Shanxi [2013011013-3]
- Undergraduate Training Programs for Innovation and Entrepreneurship of Shanxi Normal University [SD2014CXXM-79]
- Shanxi Normal University of Modern Arts and Sciences [WL2014CXCY-10]
- Teaching Reform Project of Shanxi Normal University [SD2013JGXM-55]
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A novel flow-injection chemiluminescence (FT-CL) method was described for the determination of sinomenine hydrochloride (SIN). The method was based on the inhibitory effect of SW on the CL reaction of luminol and K3Fe(CN)(6) in an alkaline solution, which was sensitized by CdTe/CdS quantum dots (QDs). Under the optimized conditions, the linear range for the determination of SIN was 1.0 x 10(-8) to 1.4 x 10(-6) mol/L. The detection limit was 7.5 x 10(-9) mol/L, and the relative standard deviation was 2.47% (n = 11). The current CL method was applied to determine SIN in pharmaceutical formulations and biological fluids with satisfactory results. The possible CL reaction mechanism was discussed briefly.
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