Micro flame detector and method for gas chromoatography

Details Micro flame detector and method for gas chromoatography Micro flame detector and method for gas chromoatography

G - Physics

01

N

G01N 30/68 (2006.01) G01N 21/72 (2006.01)

Patent

CA 2489073

A micro counter-current flame detector is provided that is bath sensitive for photometric and ionization detection for gas chromatography (GC). In the detector, a stainless steel capillary (0.01" i.d.) supplying oxygen functions as a burner, which supports a compact flame that burns in a counter-flowing excess of hydrogen. In the "micro Flame Photometric Detector" (µFPD) response mode, the background emission level is reduced by over an order of magnitude compared to previous experiments using a fused silica capillary burner, resulting in greatly improved detection limits. The device can successfully operate as both a selective and universal GC detector. Results indicate that this micro counter-current flame method yields comparable performance to conventional Flame Photometric and Flame Ionization Detectors.

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