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Screen-printed electrodes for stripping measurements of trace mercury

โœ Scribed by Joseph Wang; Baomin Tian

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
508 KB
Volume
274
Category
Article
ISSN
0003-2670

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โœฆ Synopsis

AbShCt Screen-pnnted carbon-stnp electrodes, coated wrath a thm gold film, are used for highly senatrve potenttometnc stnppmg measurements of trace levels of mercury The stnppmg response toward mercury at these mexpenswe and &sposable electrodes compares favorably with that common at conventional gold electrodes Various expenmental vanables have been optmuzed to yield low detection llrmts (e g , 0 5 pg I-' mercury for 4 mm deposltlon) and good preclslon (e g , R S D of 2 5% for 20 repetitrve measurements of 25 pg I-' mercury) Apphcablhty to trace measurements of alkyl mercury and selenium 1s also demonstrated Such adaptation of screen-prmtmg technology for the development of reliable sensors for trace mercury should benefit numerous field apphcatlons

๐Ÿ“œ SIMILAR VOLUMES

Voltammetric Behavior and Trace Determin
Voltammetric Behavior and Trace Determination of Lead at a Mercury-Free Screen-Printed Carbon Electrode
โœ Kevin C. Honeychurch; John P. Hart; David C. Cowell ๐Ÿ“‚ Article ๐Ÿ“… 2000 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 168 KB ๐Ÿ‘ 2 views

Screen-printed carbon electrodes (SPCEs), without chemical modiยฎcation, have been investigated as disposable sensors for the measurement of trace levels of Pb. Cyclic voltammetry was employed to elucidate the electrochemical behavior of Pb at these electrodes in a variety of supporting electrolytes.