A gas chromatograph detector based on emission spectrometry using high frequency discharge method
1968 Volume 17 Issue 5 Pages 575-579
Details
1968 Volume 17 Issue 5 Pages 575-579
A new type of gas chromatograph detector was developed. The high frequency discharge tube was connected with the exit of a gas chromatograph column. Argon was used as the carrier gas. The intensity of the emission spectrum originated from the organic compounds eluted into the discharge tube was measured photoelectrically.
Good reproducibility and linearity between the concentration of a compound and the intensity of its spectrum were obtained in the range of 10-6 mol and 10-8 mol for ethanol, ethyl ether, acetone, and toluene. The coefficient of standard deviation was 1 %. The detectable limits were 2 × 10-11 mol/sec in ethanol, 1 × 10-11 mol/sec in propanol, and 4 × 10-13mol/sec in benzene with CH band, 4 × 10-9 mol/sec in carbon tetrachloride with CCl band, and 5 × 10-11 mol/sec in carbon disulfide with CS band.
