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Type of publication: Straipsnis Clarivate Analytics Web of Science ar/ir Scopus / Article in Clarivate Analytics Web of Science or / and Scopus (S1)
Field of Science: Biochemija / Biochemistry (N004)
Author(s): Drevinskas, Tomas;Kaljurand, Mihkel;Maruška, Audrius
Title: Capacitance-to-digital : a single chip detector for capillary electrophoresis
Is part of: Electrophoresis. Weinheim, Germany : Wiley-VCH Verlag GmbH & Co., 2014, Vol. 35, iss. 16
Extent: p. 1401-1407
Date: 2014
Note: Online ISSN: 1522-2683
Keywords: Talpa-skaitmeninis kodas keitiklis;Kapiliarinė elektroforezė;Miniatiūrizacija;Capacitance-to-digital converter;Capillary electrophoresis;Miniaturization
Abstract: A capacitance-to-digital converter integrated circuit was implemented in an automated CE device as a single chip detector. In this paper, design and hardware issues related to the fabrication and application of a miniature detector for contactless measurement of complex impedance are discussed. The capacitance-to-digital converter integrated circuit was used as the whole detector. The advantage of this setup is that the single integrated circuit provides digital data and neither additional signal conditioning nor analog-to-digital converter is required. Different separation conditions were used to evaluate the detection characteristics of the constructed detection unit. A 1 μM LOD for sodium and a 1.6 μM LOD for potassium ions were revealed for the detector. The detection system designed is competitive with miniaturized contactless conductivity detectors or UV absorbance detectors with respect to overall parameters (sensitivity, resolution, power consumption properties, and size). The obtained separation and detection results show that such detection technique can be used as an extremely low power consuming and space saving solution for CE detection with potential applications in environmental monitoring, process control, and various analytical measurements
Affiliation(s): Biochemijos katedra
Gamtos mokslų fakultetas
Vytauto Didžiojo universitetas
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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