591
GC CHROMATOGRAMS |
ENVIRONMENTAL
Dioxins
TCDD Isomers
Rt®-2330
Column:
Rt
®
-2330, 60m, 0.25mm ID, 0.20µm (cat.# 10726)
Sample:
2.0µL splitless injection of TCDD isomers,
approximately 0.5ng each isomer
Splitless hold:
0.45 min.
Oven temp.:
200°C (hold 1 min.) to 250°C @ 8°C/min. (hold 15
min.), to 275°C @ 15°C/min. (hold 5 min.)
Inj./det. temp.:
275°C
Carrier gas:
hydrogen
Linear velocity:
40cm/sec.
ECD sensitivity:
21 kHz full scale
1. 1,4,7,8-TCDD
2. 2,3,7,8-TCDD
3. 1,2,3,4-TCDD
4. 1,2,3,7-TCDD
5. 1,2,3,8-TCDD
6. 1,2,7,8-TCDD
7. 1,2,6,7-TCDD
GC_EV00108
min.
2
4
6
8
10
12
14
16
18
20
1
2
3
4, 5
6
7
also
available
For Rtx
®
-Dioxin2 columns,
designed specifically for
dioxin/furan analysis, see
page 96.
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Mar 2011
