Liquid chromatography detector and flow controller therefor

Details Liquid chromatography detector and flow controller therefor Liquid chromatography detector and flow controller therefor

G - Physics

01

N

G01N 30/62 (2006.01)

Patent

CA 2671380

A flow controller for use with a liquid chromatography detector. The flow controller includes a flow channel comprising an inlet portion, a control channel portion in communication with the inlet portion, and an outlet portion in communication with said control channel portion. The control channel portion has a cross-sectional area smaller than a cross-sectional area of a drift tube of the liquid chromatography detector for channeling the flow of droplets through the smaller cross-sectional area. The flow controller is shaped and sized to reduce pressure fluctuations and turbulence in the droplet stream of the liquid chromatography detector.

L'invention concerne un régulateur d'écoulement à utiliser avec un détecteur de chromatographie liquide. Le régulateur d'écoulement comporte un canal d'écoulement incluant une portion d'admission, une portion de canal de régulation en communication avec la portion d'admission et une portion de refoulement en communication avec ladite portion de canal de régulation. En coupes transversales, la surface de la portion de canal de régulation est inférieure à la surface d'un tube de dérivation du détecteur de chromatographie liquide utilisé pour canaliser l'écoulement de gouttelettes. La forme et les dimensions du régulateur d'écoulement est mis en forme et dimensionné permettent de réduire les fluctuations de pression et la turbulence dans le courant de gouttelettes du détecteur de chromatographie liquide.

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