001_TOC.qxp - page 42

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GCCHROMATOGRAMS | ENVIRONMENTAL
PCB Mixtures
PCBCongeners
Rtx®-XLB
Column: Rtx®-XLB, 30m, 0.32mm ID, 0.50µm (cat.# 12839)
Sample: 200ppb each PCB congener in hexane (cat.# 32416), 200ppb
2,4,5,6-tetrachloro- m-xylene (SS) (cat.# 32027), 100ppb
decachlorobiphenyl (IS) (cat.# 32289)
Inj.: 1.0µL splitless (hold 0.75min.), 4mmDrilledUniliner® inlet liner (cat.# 21055)
Inj. temp.: 220°C
Carrier gas: hydrogen, constant pressure
Linear velocity: 66cm/sec.@ 120°C
Oven temp.: 120°C (hold 0.5min.) to 260°C@ 29°C/min. (hold 2.5min.), to 330°C@
28°C/min. (hold 5min.)
Det.: ECD@ 320°C
Compound RT (min.)
1. 2-chlorobiphenyl (BZ#1) 3.86
2. 2,4,5,6 tetrachloro- m-xylene (SS) 4.53
3. 2,3-dichlorobiphenyl (BZ#5) 4.83
4. 2,2',5-trichlorobiphenyl (BZ#18) 5.17
5. 2,4',5-trichlorobiphenyl (BZ#31) 5.63
6. 2,2',5,5'-tetrachlorobiphenyl (BZ#52) 5.89
7. 2,2',3,5'-tetrachlorobiphenyl (BZ#44) 6.09
8. 2,3',4,4'-tetrachlorobiphenyl (BZ#66) 6.64
9. 2,2',4,5,5'-pentachlorobiphenyl (BZ#101) 6.84
10. 2,2',3,4,5'-pentachlorobiphenyl (BZ#87) 7.24
11. 2,3,3',4',6-pentachlorobiphenyl (BZ#110) 7.39
12. 2,2',3,5,5',6-hexachlorobiphenyl (BZ#151) 7.51
13. 2,2',4,4',5,5'-hexachlorobiphenyl (BZ#153) 8.15
14. 2,2',3,4,5,5'-hexachlorobiphenyl (BZ#141) 8.35
15. 2,2',3,4,4',5'-hexachlorobiphenyl (BZ#138) 8.61
16. 2,2',3,4',5,5',6-heptachlorobiphenyl (BZ#187) 8.76
17. 2,2',3,4,4',5',6-heptachlorobiphenyl (BZ#183) 8.84
18. 2,2',3,4,4',5,5'-heptachlorobiphenyl (BZ#180) 9.50
19. 2,2',3,3',4,4',5-heptachlorobiphenyl (BZ#170) 9.86
20. 2,2',3,3',4,4',5,5',6-nonachlorobiphenyl (BZ#206) 10.87
21. decachlorobiphenyl (SS) 11.17
GC_EV00730
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