Flame photometric detector

摘要

A flame photometric detector (FPD) for use in a gas chromatography (GC) apparatus is described. The FPD has an emission block that is maintained in a first temperature range, and a transfer line that is maintained in a second temperature range that is greater than the first temperature range. The FPD is coupled to a light detector, such as a photomultiplier tube (PMT).

主权项

1. An apparatus for receiving a gas chromatography column, the apparatus comprising:
a transfer line having a first end and a second end opposing the first end; a heater block disposed around a first portion of the transfer line, the heater block comprising a heater configured to maintain the first portion of the transfer line at a first temperature range; an emission block configured to receive the second end of the transfer line; and a body tube substantially surrounding a second portion of the transfer line such that a gap is provided between the body tube and the second portion of the transfer line, the body tube mechanically and thermally coupled to the emission block, wherein the emission block and the body tube are maintained at a second temperature range that is lower than the first temperature range, and the second portion of the transfer line is maintained at the first temperature range.