A novel flow injection cheminescence (FICL) system for the determination of reserpine is presented in this paper. It is based on the CL reaction of reserpine, IO - 4 and H 2O 2 in H 2SO 4 medium. The CL intensity was ...A novel flow injection cheminescence (FICL) system for the determination of reserpine is presented in this paper. It is based on the CL reaction of reserpine, IO - 4 and H 2O 2 in H 2SO 4 medium. The CL intensity was correlated with concentration of reserpine in the range of 1.0×10 -6～1.0×10 -4 g/mL with a detection limit of 1.35×10 -7 g/ mL. The relative standard deviation is 2.63% for 11 measurements of 2×10 -5 g/mL reserpine standard solution. The method has been applied to the determination of reserpine in pharmaceutical preparations and the results are in good agreement with that of the standard method.展开更多
A highly sensitive double artificial neural network （DANN） analysis with flow-injection chemiluminescence （FI-CL） has been developed to simultaneously determine the trace amounts of the gold and platinum in simula...A highly sensitive double artificial neural network （DANN） analysis with flow-injection chemiluminescence （FI-CL） has been developed to simultaneously determine the trace amounts of the gold and platinum in simulated mixed samples, without the boring process.展开更多
A sensitive and rapid chemiluminescence (CL) flow injection with controlled reagent release technology for the determination of reserpine was proposed. The CL reagents, luminol and dichromate, used in this sensor, w...A sensitive and rapid chemiluminescence (CL) flow injection with controlled reagent release technology for the determination of reserpine was proposed. The CL reagents, luminol and dichromate, used in this sensor, were all immobilized on anion exchange resin. Through injection of 100 μL of water, the reagents on the anion exchange resin column were eluted and in the presence of reserpine, the CL intensity was decreased, by which reserpine could be sensed. Reserpine was quantified by measuring the decrement of CL intensity, which was observed linear with the logarithm of reserpine concentration in the range of 1 0-500 0 ng/mL, and the limit of detection was 0 4 ng/mL (3 σ ) with a relative standard deviation of less than 3 0%. The proposed procedure was applied in the assay of reserpine in pharmaceutical preparation and biological fluids without any pre treatment process and with sampling frequencies of 72 times per hour.展开更多
Sulfur dioxide has been found to decrease the chemiluminescence of luminol-iodine system.A new determination method for sulfur dioxide in atmosphere is developed by applying this reaction to a flow injection gas diffu...Sulfur dioxide has been found to decrease the chemiluminescence of luminol-iodine system.A new determination method for sulfur dioxide in atmosphere is developed by applying this reaction to a flow injection gas diffusion separation system.This permits the determination of sulfur dioxide selectively and rapidly.展开更多
文摘A novel flow injection cheminescence (FICL) system for the determination of reserpine is presented in this paper. It is based on the CL reaction of reserpine, IO - 4 and H 2O 2 in H 2SO 4 medium. The CL intensity was correlated with concentration of reserpine in the range of 1.0×10 -6～1.0×10 -4 g/mL with a detection limit of 1.35×10 -7 g/ mL. The relative standard deviation is 2.63% for 11 measurements of 2×10 -5 g/mL reserpine standard solution. The method has been applied to the determination of reserpine in pharmaceutical preparations and the results are in good agreement with that of the standard method.
文摘A highly sensitive double artificial neural network （DANN） analysis with flow-injection chemiluminescence （FI-CL） has been developed to simultaneously determine the trace amounts of the gold and platinum in simulated mixed samples, without the boring process.
基金ProjectsupportedbytheNaturalScienceFoundationofEducationCommittee ShaanxiProvince China .
文摘A sensitive and rapid chemiluminescence (CL) flow injection with controlled reagent release technology for the determination of reserpine was proposed. The CL reagents, luminol and dichromate, used in this sensor, were all immobilized on anion exchange resin. Through injection of 100 μL of water, the reagents on the anion exchange resin column were eluted and in the presence of reserpine, the CL intensity was decreased, by which reserpine could be sensed. Reserpine was quantified by measuring the decrement of CL intensity, which was observed linear with the logarithm of reserpine concentration in the range of 1 0-500 0 ng/mL, and the limit of detection was 0 4 ng/mL (3 σ ) with a relative standard deviation of less than 3 0%. The proposed procedure was applied in the assay of reserpine in pharmaceutical preparation and biological fluids without any pre treatment process and with sampling frequencies of 72 times per hour.
文摘Sulfur dioxide has been found to decrease the chemiluminescence of luminol-iodine system.A new determination method for sulfur dioxide in atmosphere is developed by applying this reaction to a flow injection gas diffusion separation system.This permits the determination of sulfur dioxide selectively and rapidly.
基金Natural science foundation of Jiangsu Province Youth Fund(BK20130646)Jiangsu Key Lab of Environmental Engineering Open Foundation(KF2012008)+1 种基金National Undergraduate Training Programs for Innovation and Entrepreneurship(02640556,201210316099)Fundamental Research Funds for the Central Universities(JKY2011083,JKPZ2013017)~~
