A simple non-selective detector for gas phase chromotography, using the measurement of reflected microwave power.
A non-selective detector is described which can be used in conjunction with the microwave-excited emissive argon plasma detector. The mode of operation is based on the measurement of reflected power and its use is demonstrated with respect to a range of component vapours and permanent gases. The limit of detection for nearly all the species investigated is in the nanogram range and the detector responded to all compounds examined.
Dagnall
R M
RM
Department of Chemistry Imperial College, London S.W.7., England.
Silvester
M D
MD
West
T S
TS
Whitehead
P
P