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A simple method to remove polyimide coating from fused silica capillaries for capillary electrophoresis
Pan Wang1, Yulin Cheng1, Wei Wei1
1Tianjin Key Laboratory of Functional Crystal Materials, Institute of Functional Crystal, Tianjin University of Technology, Tianjin, 300384, China.
Abstract:
A simple and cost-effective method for making capillary electrophoresis (CE) detection windows is reported. A low-cost laser engraving machine equipped with a 450 nm high-power blue laser was used to remove the polyimide coating from the fused silica capillary by laser scanning the desired section. The entire process is automated and controlled in real time by software. This method can be easily adopted by many CE users for routine practice and is scalable for high-throughput production of detection windows across multiple capillaries.
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