TM 157 Table B34

Table B34a. Recovery (percent) of ¹³C- and ³⁷Cl-labeled 2,3,7,8-substituted PCDD surrogate internal standards in bluefish muscle composites
Composite #	Station	¹³C-Labeled^a						³⁷Cl-Labeled^b
Composite #	Station	2,3,7,8- TCDD	1,2,3,7,8- PeCDD	1,2,3,4,7,8- HxCDD	1,2,3,6,7,8- HxCDD	1,2,3,4,6,7,8- HpCDD	OCDD	2,3,7,8- TCDD
101	BL1	52	45	53	57	51	42	84
102	BL1	82	74	83	90	78	69	123
102-MS	BL1	76	83	87	98	66	60	262^c
103	BL1	57	65	68	78	65	52	77
104	BL1	75	63	67	86	68	59	87
104-dup.	BL1	78	64	74	91	72	64	88
104-trip.	BL1	81	68	86	92	78	72	131
104 mean (n = 3)	BL1	78	65	76	90	73	65	102
105	BL1	57	60	58	74	57	43	79
106	BL2	54	57	56	67	49	45	72
107	BL2	64	56	60	67	60	49	103
108	BL2	59	61	61	79	63	55	75
109	BL2	87	78	84	103	77	56	96
109-MS	BL2	90	76	85	98	79	66	385^c
110	BL2	82	74	81	93	73	64	103
111	BL3	93	84	86	105	77	61	121
112	BL3	95	85	86	97	78	57	110
113	BL3	85	77	75	96	76	59	96
114	BL3	69	65	69	83	66	36^c	82

Mean (n = 14)		73	69	72	85	67	56	95
Std. dev.		15	12	12	14	10	8	17
^aLabeled with ¹³C at all 12 carbons on the two benzene rings. ^bLabeled with ³⁷Cl at all four chlorines. ^cThese values exceeded the 40-150% criterion.

Table B34b. Recovery (percent) of ¹³C-labeled^a 2,3,7,8-substituted PCDF surrogate internal standards in bluefish muscle composites
Composite #	Station	2,3,7,8- TCDF	1,2,3,7,8- PeCDF	2,3,4,7,8- PeCDF	1,2,3,4,7,8- HxCDF	1,2,3,6,7,8- HxCDF	1,2,3,7,8,9- HxCDF	2,3,4,6,7,8- HxCDF	1,2,3,4,6,7,8- HpCDF	1,2,3,4,7,8,9- HpCDF
101	BL1	52	42	31	48	49	45	50	47	43
102	BL1	77	101	39^b	77	79	80	82	76	69
102-MS	BL1	76	82	78	83	83	74	81	70	57
103	BL1	57	68	68	66	69	63	67	67	61
104	BL1	64	68	67	64	72	64	70	66	61
104-dup.	BL1	65	68	67	67	72	68	71	73	63
104-trip.	BL1	69	70	58	85	83	75	81	68	71
104 mean (n = 3)	BL1	66	69	64	72	76	69	74	69	65
105	BL1	58	63	63	60	61	60	61	56	53
106	BL2	51	59	58	54	58	55	57	52	47
107	BL2	60	52	33	58	60	56	59	58	52
108	BL2	52	61	60	62	65	58	64	63	57
109	BL2	87	88	87	83	87	78	89	77	65
109-MS	BL2	69	76	82	78	83	72	84	82	69
110	BL2	80	83	84	75	82	72	82	63	56
111	BL3	45	91	92	83	87	80	92	73	61
112	BL3	56	89	97	76	79	74	80	78	64
113	BL3	82	81	78	76	80	67	80	77	62
114	BL3	70	70	68	72	76	62	75	65	47

Mean (n = 14)		65	73	71	70	73	66	73	66	57
Std. dev.		13	16	17	11	12	10	13	10	8
^aLabeled with ¹³C at all 12 carbons on the two benzene rings. ^bThis value slightly exceeded the 40-150% criterion.

(Modified Jun. 13 2008)