Evaluation of Single Column Trapping/Separation and Chemiluminescence Detection for Measurement of Methanethiol and Dimethyl Sulfide from Pig Production

Table 3

Estimated detection limits and odor threshold values (OTV).

Compounds	SCTS-CLa; ppb𝑣	GC-SCDb; ppb𝑣	PTR-MSc; ppb𝑣	OTV^d; ppb𝑣
Hydrogen sulfide	—	1.2	4.4	1.9
Methanethiol	0.03	1.1	0.03	0.07
Dimethyl sulfide	0.10	1.0	0.12	4.1

^aSCTS-CL: single column trapping/separation and chemiluminescence detection; ^bGC-SCD: gas chromatography coupled with sulfur chemiluminescence detection; ^cPTR-MS: proton-transfer-reaction mass spectrometry; ^dOTV: Odor threshold values were estimated as geometric mean of reported values [1].