聚L-赖氨酸/石墨烯修饰电极测定亚硝酸盐

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英文篇名：Determination of Nitrite by Poly-L-lysine/Graphene Modified Electrode 作者：刘晓 ; 孙登明 英文作者：LIU Xiao;SUN Dengming;School of Chemistry and Materials Science,Huaibei Normal University; 关键词：亚硝酸盐 ; 石墨烯 ; 赖氨酸 ; 循环伏安法 ; 差分脉冲伏安法 英文关键词：nitrite;;graphene;;lysine;;cyclic voltammrtry;;differential pulse voltammetry 中文刊名：淮北师范大学学报(自然科学版) 英文刊名：Journal of Huaibei Normal University(Natural Sciences) 机构：淮北师范大学化学与材料科学学院; 出版日期：2019-09-10 出版单位：淮北师范大学学报(自然科学版) 年：2019 期：03 基金：安徽省高校省级自然科学研究重点项目(KJ2016A642,KJ2018A0389) 语种：中文; 页：29-34 页数：6 CN：34-1316/N ISSN：2095-0691 分类号：O657.1;TS207.3

摘要

采用循环伏安法制备聚L-赖氨酸/石墨烯修饰电极,用扫描电镜对该电极进行表征.以此电极为工作电极,对亚硝酸盐的电化学行为进行研究,建立测定亚硝酸盐的新方法.实验结果表明,在最佳测定条件下,使用循环伏安法和差分脉冲伏安法测定亚硝酸盐,分别在0.887 V和0.800 V处出现一个氧化峰.其浓度在7.50×10-6～1.00×10-3mol/L范围内呈现良好的线性关系,检出限为5.0×10-7mol/L.采用差分脉冲伏安法测定食品中的亚硝酸盐,结果令人满意.
        The poly(L-lysine/graphene)modified electrode was successfully prepared by cyclic voltammetry.The electrode was characterized by scanning electron microscopy. The electrochemical behavior of nitrite was studied using this electrode as working electrode,and a new method for the determination of nitrite was established. The experimental results show that under the optimal conditions,there is an oxidation peak at0.887 V and 0.800 V for the determination of nitrite by cyclic voltammetry and differential pulse voltammetry. The concentration showed a good linear relationship in the range of 7.50×10-6～1.00×10-3 mol/L,and the detection limit was 5.0×10-7 mol/L. The determination of nitrite in food by differential pulse voltammetry was satisfactory.

引文

[1]赵苗苗.食品添加剂亚硝酸盐的利弊[J].食品安全导刊，2017(21):64.
    [2]蔡灵利.食品添加剂硝酸盐、亚硝酸盐检测方法研究[J].科技与创新，2017(3):114-117.
    [3]WANG Qiuhua,YU Liju,LIU Yang,et al. Methods for the detection and determination of nitrite and nitrate:A review[J].Talanta,2017,165:709-720.
    [4]刘凤银，张媚健，李轩，等.食品中亚硝酸盐高快速检测试纸法的建立与应用[J].现代食品，2017(14):105-109.
    [5]JIAO Yang,YU Jianping,YANG Yaling. Vortex-assisted liquid–liquid microextraction combined with spectrophotometry for the determination of trace nitrite in water samples[J].Water Science and Technology:Water Supply,2017,17(5):1225-1231.
    [6]邢书才，李风华，王尧，等.重氮化剂对分光光度法测定大气降水中亚硝酸盐影响的研究[J].分析试验室，2018,37(10):1174-1178.
    [7]YAN Huin,ZHUO Xiangyi,SHEN Baohua,et al. Determination of nitrite in whole blood by high-performance liquid chromatography with electrochemical detection and a case of nitrite poisoning[J].Journal of Forensic Sciences,2016,61(1):254-258.
    [8]何江，陈谦，谢艳，等.高效液相色谱法快速测定食品中亚硝酸钠的含量[J].食品工业，2013,34(12):217-220.
    [9]MOSHOESHOE M N,OBUSENG V. Simultaneous determination of nitrate,nitrite and phosphate in environmental samples by high performance liquid chromatography with UV detection[J].South African Journal of Chemistry,2018,71:79-85.
    [10]ROOHPARVAR R,SHAMSPUR T,MOSTAFAVI A,et al. Indirect ultra-trace determination of nitrate and nitrite in food samples by in-syringe liquid microextraction and electrothermal atomic absorption spectrometry[J].Microchemical Journal,2018,142:135-139.
    [11]陈闽子，席建议，周艳萍，等.原子吸收光谱法间接测定腌制和泡制蔬菜中亚硝酸盐[J].理化检验（化学分册），2010,46(12):1402-1403.
    [12]牛凌梅，连靠奇，马莉，等.5-羟色胺在双层纳米金修饰电极上的电化学行为及测定研究[J].生命科学仪器，2015,13(Z1):33-36.
    [13]GHOREISHI S,BEHPOUR M,DELSHAD M,et al. Electrochemical determination of tyrosine in the presence of uric acid at a carbon paste electrode modified with multi-walled carbon nanotubes enhanced by sodium dodecyl sulfate[J].Open Chemistry,2012,10(6):1824-1829.
    [14]汤优霞，汪燕鸣，孙登明.L-半胱氨酸和镍分层修饰电极的制备及对黄岑苷的测定[J].分析科学学报，2015,31(6):769-773.
    [15]YE Zhuo,LI Yinfeng,WEN Jianguo,et al. Study of the voltammetric behavior of jatrorrhizine and its sensitive determination at electrochemical pretreatment glassy carbon electrode[J].Talanta,2014,126:38-45.
    [16]GAO Liuyue,SKYLLAS-KAZACOS M,WANG Dawei. Effects of surface pretreatment of glassy carbon on the electrochemical behavior of V(IV）/V(V)redox reaction[J].The Electrochemical Society,2016,163(7):A1164-A1174.
    [17]宋华静，李建风.火腿肠中亚硝酸盐含量的测定[J].安徽农业科学，2013,41(29):11829-11830.