Multi-analyte sensing: a chemometrics approach to understanding the merits of electrode arrays versus single electrodes

文献信息

发布日期 2008-06-19

DOI 10.1039/B804811H

影响因子 4.616

作者

Diako Ebrahimi, Edith Chow, Justin J. Gooding, David B. Hibbert

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摘要

A peptide-modified electrode array with a different peptide on each electrode is compared with a single electrode modified with many peptides for the voltammetric measurement of concentrations of Cu2+, Cd2+ and Pb2+ in solution. The single gold electrode was modified simultaneously with peptides Gly-Gly-His, glutathione and angiotensin I each coupled to thioctic acid, and thioctic acid itself, and the calibration of mixtures of ions was compared with previously published data from an array of four sensors each with an individual modification. Calibration at the multi-peptide single-electrode sensor was by two-way partial least squares (voltammetric current measured with variables ‘sample’ × ‘potential’) and for the electrode array by three-way NPLS1 (‘sample’ × ‘potential’ × ‘electrode’). The advantage of designing experiments to yield multi-way data is demonstrated and discussed.

期刊推荐

Biocatalysis and Biotransformation

Journal of Chemical Sciences

Electroanalysis

Journal of the Indian Institute of Science

Medicinal Chemistry Research

Topics in Catalysis

Atomization and Sprays

Critical Reviews in Solid State and Materials Sciences

Acta Metallurgica Sinica-English Letters

NDT & E International

来源期刊

Analyst

CiteScore: 7.8

自引率: 5.6%

年发文量: 653

Analyst publishes analytical and bioanalytical research that reports premier fundamental discoveries and inventions, and the applications of those discoveries, unconfined by traditional discipline barriers.

Multi-analyte sensing: a chemometrics approach to understanding the merits of electrode arrays versus single electrodes

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