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A microchip gas chromatography column assembly with a 3D metal printing micro column oven and a flexible stainless-steel column.
Meng, Hu; Wei, Yuyu; Feng, Liang.
Afiliación
  • Meng H; Department of Instrumentation and Analytical Chemistry, CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Dalian 116023, PR China.
  • Wei Y; Department of Instrumentation and Analytical Chemistry, CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Dalian 116023, PR China.
  • Feng L; Department of Instrumentation and Analytical Chemistry, CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Dalian 116023, PR China; Technology Innovation Center of Food Safety Technique of Inspection for State Market Regulation (Rapid Screening and Traceability for Edible Agricultural Product Safety), PR China. Electronic address: fengl@dicp.ac.cn.
J Chromatogr A ; 1729: 465036, 2024 Aug 16.
Article en En | MEDLINE | ID: mdl-38843573
ABSTRACT
In this work, a microchip gas chromatography (GC) column assembly utilizing a three-dimensional (3D) printed micro oven and a flexible stainless steel capillary column was developed. The assembly's performance and separation capabilities were characterized. The key components include a 3D printed aluminum plate (7.50 × 7.50 × 0.16 cm) with a 3-meter-long circular spiral channel, serving as the oven, and the column coiled on the channel with an inner diameter of 320 µm and a stationary phase of OV-1. A heating ceramic plate was affixed on the opposite side of the plate. The assembly weighed 40.3 g. The design allows for easy disassembly, or stacking of heating devices and columns, enabling flexibility in adjusting column length. When using n-C13 as the test analyte at 140 °C, a retention factor (k) was 8.5, and 7797 plates (2599 plates/m) were obtained. The assembly, employing resistance heating, demonstrated effective separation performance for samples containing alkanes, aromatics, alcohols and ketones, with good reproducibility. The reduction in theoretical plates compared to oven heating was only 2.95 %. In the boiling point range of C6 to C18, rapid temperature programming (120 °C/min) was achieved with a power consumption of 119.512 W. The assembly was successfully employed to separate benzene series compounds, gasoline and volatile organic compounds (VOCs), demonstrating excellent separation performance. This innovative design addresses the challenges of the complexity and low repeatability of the fabrication process and the high cost associated with microchip columns. Furthermore, its versatility makes it suitable for outdoor analysis applications.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Acero Inoxidable / Impresión Tridimensional Idioma: En Revista: J Chromatogr A Año: 2024 Tipo del documento: Article Pais de publicación: Países Bajos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Acero Inoxidable / Impresión Tridimensional Idioma: En Revista: J Chromatogr A Año: 2024 Tipo del documento: Article Pais de publicación: Países Bajos