A gas chromatography-quartz crystal microbalance for speciation of sulfur compounds in landfill gas.
A new method, based on separation with gas chromatography and detection with a quartz crystal microbalance, was used for the quantification of ethane-1-thiol, propane-1-thiol, ethyl methyl sulfide, propane-2-thiol, butane-2-thiol and butane-1-thiol. The analytical error, the analysis time and the general analytical performance are identical for gas chromatography-mass spectrometry (GC-MS) and gas chromatography-quartz crystal microbalance (GC-QCM). However, the GC-QCM method constitutes a low cost alternative to GC-MS for monitoring individual sulfur compounds in landfill gas. It is an easily assembled apparatus made with an injection device, a furnace, a column, a crystal cell and a quartz crystal.
Department of Chemistry, University of Aveiro, Portugal. teralex@dq.ua.pt
T A
TA
Rocha-Santos
M T
MT
Gomes
A C
AC
Duarte
J A
JA
Pereira Oliveira
D000393:Air Pollutants / Q000032:analysis*; D002849:Chromatography, Gas / Q000379:methods; D003460:Crystallization; D004784:Environmental Monitoring / Q000379:methods*; D005740:Gases / Q000737:chemistry; D011791:Quartz; D012037:Refuse Disposal; D013457:Sulfur Compounds / Q000032:analysis*
D000393:Air Pollutants; D005740:Gases; D013457:Sulfur Compounds; D011791:Quartz