A Spectroscopy Solution for Contactless Conductivity Detection in Capillary Electrophoresis
This paper introduces a novel contactless single-chip detector that utilizes impedance-to-digital conversion technology to measure impedance in the microfluidic channel or capillary format analytical device. The detector is designed to operate similarly to capacitively coupled contactless conductivi...
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MDPI AG
2024-11-01
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| Online Access: | https://www.mdpi.com/2072-666X/15/12/1430 |
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| author | Tomas Drevinskas Audrius Maruška Hirotaka Ihara Makoto Takafuji Linas Jonušauskas Domantas Armonavičius Mantas Stankevičius Kristina Bimbiraitė-Survilienė Elzbieta Skrzydlewska Ona Ragažinskienė Yutaka Kuwahara Shoji Nagaoka Vilma Kaškonienė Loreta Kubilienė |
| author_facet | Tomas Drevinskas Audrius Maruška Hirotaka Ihara Makoto Takafuji Linas Jonušauskas Domantas Armonavičius Mantas Stankevičius Kristina Bimbiraitė-Survilienė Elzbieta Skrzydlewska Ona Ragažinskienė Yutaka Kuwahara Shoji Nagaoka Vilma Kaškonienė Loreta Kubilienė |
| author_sort | Tomas Drevinskas |
| collection | DOAJ |
| description | This paper introduces a novel contactless single-chip detector that utilizes impedance-to-digital conversion technology to measure impedance in the microfluidic channel or capillary format analytical device. The detector is designed to operate similarly to capacitively coupled contactless conductivity detectors for capillary electrophoresis or chromatography but with the added capability of performing frequency sweeps up to 200 kHz. At each recorded data point, impedance and phase-shift data can be extracted, which can be used to generate impedance versus frequency plots, or phase-shift versus frequency plots. Real and imaginary parts can also be calculated from the data, allowing for the generation of Nyquist diagrams. This detector represents the first of its kind in the contactless conductivity class to provide spectrum-type data, as demonstrated in capillary electrophoresis experiments. |
| format | Article |
| id | doaj-art-9fb379c9d13d49ec9be262d897aa7060 |
| institution | DOAJ |
| issn | 2072-666X |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj-art-9fb379c9d13d49ec9be262d897aa70602025-08-20T02:43:20ZengMDPI AGMicromachines2072-666X2024-11-011512143010.3390/mi15121430A Spectroscopy Solution for Contactless Conductivity Detection in Capillary ElectrophoresisTomas Drevinskas0Audrius Maruška1Hirotaka Ihara2Makoto Takafuji3Linas Jonušauskas4Domantas Armonavičius5Mantas Stankevičius6Kristina Bimbiraitė-Survilienė7Elzbieta Skrzydlewska8Ona Ragažinskienė9Yutaka Kuwahara10Shoji Nagaoka11Vilma Kaškonienė12Loreta Kubilienė13Instrumental Analysis Open Access Centre, Faculty of Natural Sciences, Vytautas Magnus University, 44404 Kaunas, LithuaniaInstrumental Analysis Open Access Centre, Faculty of Natural Sciences, Vytautas Magnus University, 44404 Kaunas, LithuaniaFaculty of Advanced Science and Technology, Kumamoto University, Kumamoto 860-8555, JapanFaculty of Advanced Science and Technology, Kumamoto University, Kumamoto 860-8555, JapanVital3D Technologies, Sauletekio al. 15, 10224 Vilnius, LithuaniaInstrumental Analysis Open Access Centre, Faculty of Natural Sciences, Vytautas Magnus University, 44404 Kaunas, LithuaniaInstrumental Analysis Open Access Centre, Faculty of Natural Sciences, Vytautas Magnus University, 44404 Kaunas, LithuaniaInstrumental Analysis Open Access Centre, Faculty of Natural Sciences, Vytautas Magnus University, 44404 Kaunas, LithuaniaDepartment of Analytical Chemistry, Medical University of Białystok, 15-222 Białystok, PolandBotanical Garden, Vytautas Magnus University, 46324 Kaunas, LithuaniaFaculty of Advanced Science and Technology, Kumamoto University, Kumamoto 860-8555, JapanKumamoto Industrial Research Institute, Kumamoto University, Kumamoto 860-8555, JapanInstrumental Analysis Open Access Centre, Faculty of Natural Sciences, Vytautas Magnus University, 44404 Kaunas, LithuaniaDepartment of Pharmacognosy, Medical Academy, Lithuanian University of Health Sciences, 44307 Kaunas, LithuaniaThis paper introduces a novel contactless single-chip detector that utilizes impedance-to-digital conversion technology to measure impedance in the microfluidic channel or capillary format analytical device. The detector is designed to operate similarly to capacitively coupled contactless conductivity detectors for capillary electrophoresis or chromatography but with the added capability of performing frequency sweeps up to 200 kHz. At each recorded data point, impedance and phase-shift data can be extracted, which can be used to generate impedance versus frequency plots, or phase-shift versus frequency plots. Real and imaginary parts can also be calculated from the data, allowing for the generation of Nyquist diagrams. This detector represents the first of its kind in the contactless conductivity class to provide spectrum-type data, as demonstrated in capillary electrophoresis experiments.https://www.mdpi.com/2072-666X/15/12/1430capacitively coupled contactless conductivity detectionelectrical impedance spectroscopycapillary electrophoresis |
| spellingShingle | Tomas Drevinskas Audrius Maruška Hirotaka Ihara Makoto Takafuji Linas Jonušauskas Domantas Armonavičius Mantas Stankevičius Kristina Bimbiraitė-Survilienė Elzbieta Skrzydlewska Ona Ragažinskienė Yutaka Kuwahara Shoji Nagaoka Vilma Kaškonienė Loreta Kubilienė A Spectroscopy Solution for Contactless Conductivity Detection in Capillary Electrophoresis Micromachines capacitively coupled contactless conductivity detection electrical impedance spectroscopy capillary electrophoresis |
| title | A Spectroscopy Solution for Contactless Conductivity Detection in Capillary Electrophoresis |
| title_full | A Spectroscopy Solution for Contactless Conductivity Detection in Capillary Electrophoresis |
| title_fullStr | A Spectroscopy Solution for Contactless Conductivity Detection in Capillary Electrophoresis |
| title_full_unstemmed | A Spectroscopy Solution for Contactless Conductivity Detection in Capillary Electrophoresis |
| title_short | A Spectroscopy Solution for Contactless Conductivity Detection in Capillary Electrophoresis |
| title_sort | spectroscopy solution for contactless conductivity detection in capillary electrophoresis |
| topic | capacitively coupled contactless conductivity detection electrical impedance spectroscopy capillary electrophoresis |
| url | https://www.mdpi.com/2072-666X/15/12/1430 |
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