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

Table 5

Result^a for water storage time (all samples were tested three times).

Storage time^b (d)	Linearity (R)		Plastic vial^c (ng L^−1)		Glass vial^c (ng L^−1)
	GSM	2-MIB	GSM	2-MIB	GSM	2-MIB
0	0.9997	0.9999	108.26	109.36	98.62	101.17
1	0.9991	0.9993	95.32	107.33	92.59	107.88
2	0.9998	0.9998	98.32	94.02	94.62	89.61
3	0.9997	0.9934	105.62	107.04	98.63	95.17
4	0.9987	0.9995	104.85	96.13	96.86	95.86
5	0.9986	0.9995	108.26	106.07	97.31	94.69
6	0.9941	0.9998	98.98	109.36	95.26	94.51
7	0.9997	0.9987	105.24	97.01	96.54	96.18
10	0.9917	0.9974	96.13	105.95	98.05	91.74

^aThe concentration of target compounds in original water, GSM and 2-MIB, n.d., and 1.1 ng L⁻¹, respectively.
^bThe 0 day means the day of sampling, 1 day means one day after 0 day, and so on.
^cThe 100 ng L⁻¹ mixed standard of GSM and 2-MIB was added to both plastic and glass vial.