纳米银-铁氰化钾-鲁米诺化学发光体系测定大豆甙元
Determination of Daidzein by Chemiluminescence Based on the System of Ag Nanoparticles-Potassium Ferricyanide-Luminol
摘 要
碱性介质中纳米银对鲁米诺-铁氰化钾-大豆甙元具有催化作用,据此建立了测定大豆甙元的流动注射化学发光法。在最佳条件下,大豆甙元的质量浓度在5.0×10-5~1.0×10-2g·L-1范围内与化学发光强度呈线性关系,检出限(3S/N)为6.5×10-6g·L-1。加标回收率在96.2%~104%之间,测定值的相对标准偏差(n=3)小于3%。
流动注射
大豆甙元
纳米银
Chemiluminescence
Flow injection
Daidzein
Ag nanoparticles
Abstract
Based on the fact that Ag nanoparticles could enhance the chemiluminescence (CL) intensity of the system of luminol-potassium ferricyanide-daidzein system-sodium hydroxide, a flow injection chemiluminescence method was developed for the determination of daidzein. Under the optimum conditions, a linear relationship was found between the CL intensity and the mass concentration of daidzein in the range of 5.0×10-5-1.0×10-2g·L-1 with the detection limit (3S/N) of 6.5×10-6g·L-1. Recovery rates obtained by standard addition method were in the range of 96.2%-104%, with RSDs (n=3) less than 3%.
中图分类号 O657.39 DOI 10.11973/lhjy-hx201510006
所属栏目 工作简报
基金项目 贵州省2014年大学生创新创业训练计划项目(201410664003);贵州省科学技术基金项目(黔科合J字LKZS［2012］16号)
收稿日期 2014/10/11
修改稿日期
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联系人作者李丽(746592965@qq.com)
备注李丽(1964-),女,贵州遵义人,教授,主要从事药物分析研究。
引用该论文: LI Li,CHEN Qian,LIU Yan,WANG Ke-ling. Determination of Daidzein by Chemiluminescence Based on the System of Ag Nanoparticles-Potassium Ferricyanide-Luminol[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2015, 51(10): 1378～1381
李丽,陈茜,刘焱,王科玲. 纳米银-铁氰化钾-鲁米诺化学发光体系测定大豆甙元[J]. 理化检验－化学分册, 2015, 51(10): 1378～1381
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参考文献
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【2】ED H, SUSANNE M H, NAM P, et al. Genistein and daidzein/ glycitein content in Tofu［J］. Journal of Food Composition and Analysis, 2001,14:199-206.
【3】SATHYAMOORTHY N, WANG T T Y. Differential effects of dietary phyto-estrogens daidzein and equol on human breast cancer MCF-7 cells［J］. EuropeanJournal of Cancer, 1997,33(14):2384-2389.
【4】胡效亚,陈洪渊.纳米团簇研究新进展及其在分析化学中的应用［J］.大学化学, 2002,17(2):1-12.
【5】VALCARCEL M, CARDENAS S, SIMONET B M. Role of carbon nanotubes in analytical science［J］. Anal Chem, 2007,79:4788-4797.
【6】张敬畅,刘慷,曹维良.纳米粒子的特性、应用及制备方法［J］.石油化工高等学校学报, 2001,14(2):22-25.
【7】左伟伟,张琰图,刘继青,等.纳米银催化Luminol-H2O2化学发光体系检测米非司酮［J］.分析试验室, 2014,33(1):1-5.
【8】樊雪梅,王书民,崔效伟.鲁米诺-过氧化氢-纳米银化学发光体系测定药物中的对乙酰氨基酚［J］.应用化学, 2014,31(1):109-113.
【9】王灿,陈效兰,谭新梅.纳米银增敏化学发光体系测定间苯二酚［J］.分析科学学报, 2011,27(4):439-442.
【10】LIU Cui, LI Bao-xin. Silver nanoparticle-initiated chemiluminescence reaction of luminal AgNO3 and its analytical application［J］. Anal Bioanal Chem, 2011,401(1):229-235.
【11】LI Li-na, LI Nian-bing, LUO Hong-qun. A new chemiluminescence method for the determination of nickel ion［J］. Spectrochimica Acta Part A, 2006,64:391-396.
【12】李丽,黄玉明.流动注射化学发光法测定左羟丙哌嗪［J］.西南师范大学学报:自然科学版, 2006,31(6):169-172.
【13】GUO Ji-zhao, CUI Hua, ZHOU Wei, et al. Ag nanoparticle catalyzed chemiluminescent reaction between luminal and hydrogen peroxide［J］. J Photochem Photobiol, 2008,193(2/3):89-96.
【14】LI Yin-huan, LI Yan-kun, YANG Yun. Flow-injection chemiluminescence determination of lisinopril using luminol-KMnO4 reaction catalyzed by silver nanoparticles［J］. Applied Spectroscopy, 2011,65(4):376-381.
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