Orthogonal Design Study on Factors Affecting the Determination of Common Odors in Water Samples by Headspace Solid-Phase Microextraction Coupled to GC/MS

Table 1

The CAS number, molecular weight, boiling point, and odor threshold of the three compounds.

Compounds	CAS no.	Molecular weight	Boiling point^a (°C)	Odor threshold concentration^c (ng L^−1)
GSM	19700-21-1	182	270^b/249	4
2-MIB	2371-42-8	168	210	9
IBMP	24683-00-9	166	236	1

aCalculated by EPISuit v.4.10 (2011) developed by the US EPA 2011, and boiling points were obtained by the Stein and Brown method. ^bThis boiling point was obtained by EPISuit v.4.10. ^cDetected by sensory and cited from Mallevialle and Young et al. [10, 30].