Table 3.

Response of analytes with and without preservative after 1 and 7 days of storage under ideal conditions.

	Day	EME	COC	COET	BEG	NCOC	COD	MOR	6-MAM
Without preservative	1	0.16	0.23	0.29	0.31	0.09	0.02	0.35	0.03
	7	0.22	0.14	0.24	0.24	0.05	0.02	0.47	0.03
With preservative	1	0.54	0.35	0.34	1.23	0.13	0.04	0.88	0.04
	7	0.32	0.28	0.27	1.14	0.10	0.01	0.77	0.03