Improving thermal control of capillary electrophoresis with mass spectrometry and capacitively coupled contactless conductivity detection by using 3D printed cartridges

Talanta
Kelliton José Mendonça Francisco, Claudimir L do Lago

Abstract

A 3D-printed cartridge was developed to improve the interface between a capillary electrophoresis instrument and a mass spectrometer. The thermostated airflow from the CE was guided to the entrance of the electrospray source keeping as much as possible the silica capillary in a proper Joule-heating dissipation environment. Hollow 3D-printed walls made of ABS covered by a 0.2 mm thick copper foil on the inner side were used. The cartridge also allows including up to two capacitively coupled contactless conductivity detectors (C4Ds). Experiments about the separation of monoethyl carbonate (a thermally unstable species) shows that the peak area obtained with the original cartridge is only 21% of the value obtained with the 3D-printed cartridge, which demonstrates the improvement in heat dissipation.

Citations

Feb 13, 2021·Analytical Methods : Advancing Methods and Applications·Héctor Guillén-AlonsoRobert Winkler
Jan 17, 2021·Journal of Chromatography. a·Joshua J DavisJames P Grinias
Mar 24, 2021·Analytical and Bioanalytical Chemistry·Ziting Gao, Wenwan Zhong
May 24, 2021·Analytica Chimica Acta·M GrajewskiG Ij Salentijn
Sep 13, 2021·Electrophoresis·Jef RozenskiAnn Van Schepdael

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