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author:

Lin, Z. (Lin, Z..) [1] | Sun, X. (Sun, X..) [2] | Hu, W. (Hu, W..) [3] | Yin, Y. (Yin, Y..) [4] | Chen, G. (Chen, G..) [5]

Indexed by:

Scopus

Abstract:

A boronate ACE coupled with chemiluminescence (CL) detection was developed for sensitive determination of three isomeric benzenediols, which was based on the principle of an inhibited effect of borate complexation on the CL reaction between luminol and potassium hexacyanoferrate (K3Fe(CN)6) in alkaline solution. The effects of some important factors on CE separation and CL intensity were systemically investigated. Baseline separation of isomeric benzenediols including o-benzenediol, m-benzenediol, and p-benzenediol was achieved by using a mobile phase of 40 mmol/L glycine-NaOH buffer at pH 9.4 containing 0.8 mmol/L luminol and 0.4 mol/L 4-iodophenylboronic acid. The calibration curves of the analytes by plotting the peak height against corresponding concentration were linear over the range of 4.5 × 10-8 ∼ 4.5 × 10-5 mol/L for p-benzenediol, 6.8 × 10-8 ∼ 2.7 × 10-5 mol/L for m-benzenediol, and 9.0 × 10-8 ∼ 4.5 × 10-5 mol/L for o-benzenediol. The corresponding detection limits for p-, m-, and o-benzenediols were 2.8 × 10-8 mol/L (68 amol), 3.2 × 10-8 mol/L (108.4 amol), and 3.7 × 10-8 mol/L (125.8 amol; S/N = 3), respectively. The proposed method has been successfully applied to the analysis of trace benzenediols in spiked human urine sample and the recoveries were >97.2%. Our primary result demonstrated the proposed CE-CL method has great potential for biomarker determination in clinical diagnosis. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Keyword:

Boronate affinity; Capillary electrophoresis; Chemiluminescence detection; Isomeric benzenediols

Community:

  • [ 1 ] [Lin, Z.]Ministry of Education Key Laboratory of Analysis and Detection for Food Safety, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou, Fujian, China
  • [ 2 ] [Sun, X.]Ministry of Education Key Laboratory of Analysis and Detection for Food Safety, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou, Fujian, China
  • [ 3 ] [Hu, W.]Ministry of Education Key Laboratory of Analysis and Detection for Food Safety, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou, Fujian, China
  • [ 4 ] [Yin, Y.]Ministry of Education Key Laboratory of Analysis and Detection for Food Safety, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou, Fujian, China
  • [ 5 ] [Chen, G.]Ministry of Education Key Laboratory of Analysis and Detection for Food Safety, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou, Fujian, China

Reprint 's Address:

  • [Lin, Z.]Ministry of Education Key Laboratory of Analysis and Detection for Food Safety, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou, Fujian 350108, China

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Source :

Electrophoresis

ISSN: 0173-0835

Year: 2014

Issue: 7

Volume: 35

Page: 993-999

3 . 0 2 8

JCR@2014

3 . 0 0 0

JCR@2023

ESI HC Threshold:268

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 15

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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