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

Figure 5

Desorption from a silica gel column loaded with ca. 600 mL of a gas mixture containing hydrogen sulfide (ca. 300  ppb_𝑣), methanethiol (ca. 10 ppb_𝑣), and dimethyl sulfide (ca. 10 ppb_𝑣). The desorbed compunds were measured by proton-transfer-reaction mass spectrometry (PTR-MS).