Electrochemiluminescent determination of L-cysteine with a flow-injection analysis system

被引：15
|
作者：
Zhu, L [1 ]
Li, YX [1 ]
Zhu, GY [1 ]
机构：
[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, Changchun 130022, Peoples R China
来源：
ANALYTICAL SCIENCES | 2003年 / 19卷 / 04期
关键词：
D O I：
10.2116/analsci.19.575
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A flow-injection electrochemiluminescent method for L-cysteine determination has been developed based on its enhancement of the electrochemiluminecence of luminol at a glassy carbon electrode. This method is simple and sensitive for cysteine determination. Under the selected experimental parameters, the linear range for cysteine concentration was 1.0 x 10(-6) - 5.0 x 10(-5) mol/l, and the detection limit was 0.67 mumol/l (SIN = 3). The relative standard deviation for 11 measurements of 1.0 x 10(-5) mol/l cysteine was 4.5%. The proposed method has been applied to. the detection of cysteine in pharmaceutical injections with satisfactory results.
引用
收藏
页码：575 / 578
页数：4
相关论文
共 50 条
  • [1] Electrochemiluminescent Determination of l-Cysteine with a Flow-Injection Analysis System
    Liande Zhu
    Yingxiu Li
    Guoyi Zhu
    Analytical Sciences, 2003, 19 : 575 - 578
  • [2] Determination of L-cysteine in amino acid mixture and human urine by flow-injection analysis with a biamperometric detector
    Zhao, C
    Zhang, JC
    Song, JF
    ANALYTICAL BIOCHEMISTRY, 2001, 297 (02) : 170 - 176
  • [3] Flow-injection simultaneous chemiluminescence determination of ascorbic acid and L-cysteine with partial least squares calibration
    Li, BX
    Wang, DM
    Xu, CL
    Zhang, ZJ
    MICROCHIMICA ACTA, 2005, 149 (3-4) : 205 - 212
  • [4] Flow-Injection Simultaneous Chemiluminescence Determination of Ascorbic Acid and L-Cysteine with Partial Least Squares Calibration
    Baoxin Li
    Dongmei Wang
    Chunli Xu
    Zhujun Zhang
    Microchimica Acta, 2005, 149 : 205 - 212
  • [5] SPECTROFLUOROMETRIC FLOW-INJECTION METHOD FOR THE INDIVIDUAL AND SUCCESSIVE DETERMINATION OF L-CYSTEINE AND L-CYSTINE IN PHARMACEUTICAL AND URINE SAMPLES
    PEREZRUIZ, T
    MARTINEZLOZANO, C
    TOMAS, V
    CARPENA, J
    ANALYST, 1992, 117 (06) : 1025 - 1028
  • [6] Stopped-flow injection analysis for simultaneous determination of ascorbic acid and L-cysteine
    Zeng, Sa
    Tan, Huiling
    Lihua Jianyan: Huaxue Fence/Physical Testing and Chemical Analysis Part B:Chemical Analysis, 2000, 36 (10): : 439 - 441
  • [7] A novel flow-injection chemiluminescence method for determination of baclofen using L-cysteine capped CdS quantum dots
    Khataee, Alireza
    Hasanzadeh, Aliyeh
    Iranifam, Mortaza
    Joo, Sang Woo
    SENSORS AND ACTUATORS B-CHEMICAL, 2015, 215 : 272 - 282
  • [8] Determination of N-acetyl-L-cysteine by flow-injection potentiometry
    Radic, N
    Komljenovic, J
    FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY, 1998, 360 (06): : 675 - 678
  • [9] Determination of N-acetyl-L-cysteine by flow-injection potentiometry
    Nj. Radić
    J. Komljenović
    Fresenius' Journal of Analytical Chemistry, 1998, 360 : 675 - 678
  • [10] Simulation of physical processes in flow-injection system with electrochemiluminescent detector
    Kharkiv National University of Radio Engineering and Electronics, 14, Lenin Ave., Kharkiv, 61166, Ukraine
    Telecommun Radio Eng, 2007, 10 (925-931):
12345