TY - JOUR
T1 - Trace analysis of halogenated hydrocarbons in gaseous samples by on-line enrichment in an adsorption trap, on-column cold-trapping and capillary gas chromatography. I.Method and instrumentation
AU - Noij, T.H.M.
AU - Fabian, P.
AU - Borchers, R.
AU - Janssen, F.
AU - Cramers, C.A.M.G.
AU - Rijks, J.A.
PY - 1987
Y1 - 1987
N2 - A method is described for the determination of halocarbons in gaseous samples down to the ppt level (1:1012, v/v), consisting of successive on-line sub-ambient enrichment on an adsorbent, on-column cryofocusing, capillary gas chromatography and electron-capture detection. The quantitative aspects of sample transfer throughout the system, trapping/desorption efficiencies and maximum sample volumes of different adsorbents were studied, as well as the efficiency and focusing effect of on-column cold-trapping on capillary OV-101 and alumina porous layer open-tubular columns. The analytical power of the method is demonstrated in the analysis of stratospheric air and an highly complicated industrial problem, viz., the determination of ppb amounts of sulphur-fluorine compounds in a matrix of polluted sulphur hexafluoride.
AB - A method is described for the determination of halocarbons in gaseous samples down to the ppt level (1:1012, v/v), consisting of successive on-line sub-ambient enrichment on an adsorbent, on-column cryofocusing, capillary gas chromatography and electron-capture detection. The quantitative aspects of sample transfer throughout the system, trapping/desorption efficiencies and maximum sample volumes of different adsorbents were studied, as well as the efficiency and focusing effect of on-column cold-trapping on capillary OV-101 and alumina porous layer open-tubular columns. The analytical power of the method is demonstrated in the analysis of stratospheric air and an highly complicated industrial problem, viz., the determination of ppb amounts of sulphur-fluorine compounds in a matrix of polluted sulphur hexafluoride.
U2 - 10.1016/S0021-9673(01)94233-5
DO - 10.1016/S0021-9673(01)94233-5
M3 - Article
SN - 0021-9673
VL - 393
SP - 343
EP - 356
JO - Journal of Chromatography
JF - Journal of Chromatography
IS - 3
ER -