Table 5. Reappearance of target compounds (phthalates and adipate) (20ppb)

(Area)

Compound	m/z	1	2	3	4	5	Average	Deviation	CV(%)
Di ethyl phthalate	149	77411	93409	90267	92506	82176	87153.8	7021	8.1
Di n-butyl phthalate	149	114482	148546	142582	130844	136757	134642	13055	9.7
Di n-pentyl phthalate-d4	153	644806	786549	744322	763400	689653	725746	57693	7.9
Di 2-ethyl hexyl adipate	129	46476	52375	49817	43075	44938	47336	3748	7.9
Di 2-ethyl hexyl phthalate	167	25222	28594	28576	26214	27009	27123	1477	5.4
Di n-butyl phthalate- d4	153	647108	802065	759813	762992	700994	734594	60781	8.3
Di 2-ethyl hexyl phthalate-d4	153	334165	378710	364494	335718	334832	349584	20726	5.9

Compound	m/z	1	2	3	4	5	Average	Deviation	CV(%)	3s	10s
Di ethyl phthalate	149	20.24	19.67	20.09	20.62	19.81	20.09	0.34	1.67	1.01	3.35
Di n-butyl phthalate	149	19.21	20.24	20.55	20.32	21.48	20.47	0.78	3.80	2.33	7.78
Di n-pentyl phthalate-d4	153	100.53	98.93	98.83	99.58	99.25	99.35	0.64	0.64	1.91	6.37
Di 2-ethyl hexyl adipate	129	20.16	20.04	19.80	20.38	19.43	20.26	0.80	3.94	2.40	7.99
Di 2-ethyl hexyl phthalate	167	19.70	19.71	20.60	20.50	21.30	20.29	0.63	3.10	1.89	6.30
Di n-butyl phthalate- d4	153
Di 2-ethyl hexyl phthalate-d4	153