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Three-Electrode-Integrated Sensor into a Micropipette Tip

✍ Scribed by Rodrigo Amorim Bezerra da Silva; Adriano César Rabelo; Rodrigo Alejandro Abarza Munoz; Eduardo Mathias Richter

Publisher
John Wiley and Sons
Year
2010
Tongue
English
Weight
269 KB
Volume
22
Category
Article
ISSN
1040-0397

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

This work describes the construction, characterization, and application of a three‐electrode‐integrated sensor into a micropipette tip. The three electrodes (working, pseudoreference and counter) are positioned at the end of a micropipette tip. The working electrode (graphite composite or gold microfiber) is placed inside the micropipette tip and the pseudo‐reference and counter electrodes outside (diametrically opposed sides). This approach is candidate for portable applications and allows the analysis and studies in low‐volume solutions (ca. 10 µL) which are useful for waste minimization and development of clean analytical methods. In addition, the three‐electrode‐integrated sensor can be easy used as detector in flow injection system through its direct joining at the end of polyethylene tubing of the FIA system.

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