Enhanced flow injection analysis for measurements of S-nitrosothiols species in biological samples using highly selective amperometric nitric oxide sensor

被引：2

作者：

Huang, Chun Cui ^{[1
]}

Shao, Hui Bo ^{[1
]}

机构：

[1] Beijing Inst Technol, Sch Chem, Minist Educ China, Key Lab Cluster Sci, Beijing 100081, Peoples R China

来源：

CHINESE CHEMICAL LETTERS | 2012年 / 23卷 / 02期

关键词：

Enhanced FIA method; Plasma; RSNOs; Highly selective NO sensor;

D O I：

10.1016/j.cclet.2011.11.003

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A highly selective nitric oxide (NO) sensor is fabricated and applied to devise an enhanced flow injection analysis (FIA) system for S-nitrosothiols (RSNOs) measurement in biological samples. The NO sensor is prepared using a polytetrafluoroethylene (PTFE) gas-permeable membrane loaded with Teflon AF (R) solution, a copolymer of tetrafluoroethylene and 2,2-bis(trifluoroethylene)-4,5-difluoro-1,3-dioxole, to improve selectivity. This method is much simpler and possesses good performance over a wide range of RSNOs concentrations. Standard deviation for three parallel measurements of blood plasma is 4.0%. The use of the gas sensing configuration as the detector enhances selectivity of the FIA measurement vs. using less selective electrochemical detectors that do not use PTFE/Teflon type outer membranes. (C) 2011 Published by Elsevier B.V. on behalf of Chinese Chemical Society.

引用

页码：229 / 232

页数：4

共 11 条

[1] Enhanced flow injection analysis for measurements of S-nitrosothiols species in biological samples using highly selective amperometric nitric oxide sensor
Chun Cui Huang
Chinese Chemical Letters, 2012, 23 (02) : 229 - 232
[2] Flow injection measurements of S-nitrosothiols species in biological samples using amperometric nitric oxide sensor and soluble organoselenium catalyst reagent
Chuncui Huang
Elizabeth Brisbois
Mark E. Meyerhoff
Analytical and Bioanalytical Chemistry, 2011, 400 : 1125 - 1135
[3] Flow injection measurements of S-nitrosothiols species in biological samples using amperometric nitric oxide sensor and soluble organoselenium catalyst reagent
Huang, Chuncui
Brisbois, Elizabeth
Meyerhoff, Mark E.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY, 2011, 400 (04) : 1125 - 1135
[4] Direct detection of S-nitrosothiols using planar amperometric nitric oxide sensor modified with polymeric films containing catalytic copper species
Cha, W
Lee, Y
Oh, BK
Meyerhoff, ME
ANALYTICAL CHEMISTRY, 2005, 77 (11) : 3516 - 3524
[5] Catalytic generation of nitric oxide from S-nitrosothiols using immobilized organoselenium species
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Meyerhoff, Mark E.
BIOMATERIALS, 2007, 28 (01) : 19 - 27
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[9] Rapid Screening of Total Antioxidant Capacity in Tea Samples Using Flow Injection Analysis with Highly Stable Multiple Pulse Amperometric Detection
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[10] Determination of serum glucose using flow injection analysis and highly selective glucose sensor based on composite films
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ELECTROCHIMICA ACTA, 2012, 65 : 90 - 96

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