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Comparison of Helium and Hydrogen Carrier Gas Activity in the Analysis of Organochlorine Pesticides (EPA Method 8081) on Rtx-CLPesticides2

Comparison of Helium and Hydrogen Carrier Gas Activity in the Analysis of Organochlorine Pesticides (EPA Method 8081) on Rtx-CLPesticides2

PeaksConc.
(ng/mL)
1.Tetrachloro-m-xylene20
2.Hexachlorobenzene5
3.α-BHC5
4.γ-BHC5
5.β-BHC5
6.δ-BHC5
7.Heptachlor5
8.Aldrin5
9.Heptachlor epoxide5
10.trans-Chlordane5
11.cis-Chlordane5
PeaksConc.
(ng/mL)
12.Endosulfan I5
13.4,4'-DDE10
14.Dieldrin10
15.Endrin10
16.4,4'-DDD10
17.Endosulfan II10
18.4,4'-DDT10
19.Endrin aldehyde10
20.Endosulfan sulfate10
21.Methoxychlor50
22.Endrin ketone10
23.Decachlorobiphenyl20
image
GC_EV1326
ColumnsRtx-CLPesticides2 30 m, 0.32 mm ID, 0.25 µm (cat.# 11324)
and Rtx-CLPesticides 30 m, 0.32 mm ID, 0.32 µm (cat.# 11141)
using Rxi guard column 5 m, 0.32 mm ID (cat.# 10039)
with universal “Y” Press-Tight connector (cat.# 20406-261)
SampleOrganochlorine pesticide mix AB #2 (cat.# 32292)
Hexachlorobenzene (cat.# 32231)
2,4,5,6-Tetrachloro-m-xylene (cat.# 32027)
Decachlorobiphenyl (BZ #209) (cat.# 32029)
Diluent:n-Hexane
Injection
Inj. Vol.:2 µL splitless (hold 0.75 min)
Liner:Premium 4 mm single taper w/wool (cat.# 23303.5)
Inj. Temp.:250 °C
Purge Flow:50 mL/min
Oven
Oven Temp.:110 °C (hold 0.5 min) to 325 °C at 25 °C/min (hold 2 min)
Carrier GasHe, constant flow
Linear Velocity:52 cm/sec
DetectorMicro-ECD @ 340 °C
Make-up Gas Flow Rate:50 mL/min
Make-up Gas Type:N2
Data Rate:50 Hz
InstrumentAgilent/HP6890 GC
NotesConditions above are for helium carrier gas. For hydrogen carrier gas conditions, see chromatogram GC_EV1327.
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RELATED CHROMATOGRAM LIBRARY SEARCHES

EPA Method 8081

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nitrogen carrier gas

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hydrogen carrier gas

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chlorinated pesticides

Printing tips! To print chromatograms full page, change the print settings in the print dialogue window of your PDF reader software: 1) "fit" or "fit to page", 2) "landscape" for wide chromatograms or "portrait" for tall chromatograms.


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