Analysis of Five Earthy-Musty Odorants in Environmental Water by HS-SPME/GC-MS

Table 1

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

Compounds	CAS number	Molecular formula	Molecular weight	Boiling point^a (°C)	OTC^c (ng L^−1)
DMTS	3658-80-8	C2H6S3	126	177	10
IBMP	24683-00-9	C9H14N2O	166	236	1
2-MIB	2371-42-8	C11H20O	168	210	9
β-Cyclocitral	432-25-7	C10H16O	152	215	1.9 × 10^4
GSM	19700-21-1	C12H22O	182	270^b/249	4
β-Ionone	14901-07-6	C13H20O	192	239^b/263	7

^aCalculated by EPISuit v.4.10 (2011) developed by the US EPA 2011, and boiling points by Stein and Brown method.
^bThis boiling point was obtained by EPISuit v.4.10.
^cOTC: odor threshold concentration, detected by sensory and cited from Mallevialle [14] and Young et al. [6].