577
GC CHROMATOGRAMS |
ENVIRONMENTAL
Pest icides
Organophosphorus Pesticides (European)
Rtx®-CLPesticides
GC_EV00648
Column:
Rtx
®
-CLPesticides, 30m, 0.25mm ID, 0.25µm (cat.# 11123)
Sample:
Custom European Mix
1-bromo-2-nitrobenzene (cat.# 32279)
4-chloro-3-nitrobenzotrifluoride (cat.# 32282)
tributylphosphate (cat.# 32280)
triphenylphosphate (cat.# 32281)
Inj.:
1.0µL splitless (hold 0.4 min.)
4mm double gooseneck inlet liner (cat.# 20785)
Inj. temp.:
250°C
Carrier gas:
helium, constant flow, 6psi head pressure
Flow rate:
0.75mL/min.
Linear velocity:
28cm/sec.*
Dead time:
1.82 min. @ 80°C
Oven temp.:
80°C (hold 1.0 min.) to 150°C @ 7°C/min. (no hold)
to 280°C @ 15°C/min. (hold 7 min.)
Det.:
Agilent 5971A GC/MS
Transfer line temp.: 280°C
Scan range:
35–400amu
Solvent Delay
5 min.
Tune
PFTBA
Ionization:
EI
*This mix was prepared for FPD analyses. Peaks will be equivalent height with FPD
detection if linear velocity is set at 28cm/sec. (0.32mm ID column).
Compound
Conc. on-column (ng)
1. 4-chloro-3-nitro-trifluoride
100
2. methamidophos
50
3. dichlorvos
50
4. 1-bromo-2-nitrobenzene
100
5. acephate
20
6. demeton-S-methyl
20
7. TBP (IS)
100
8. omethoate
100
9. dimethoate
20
10. tolclofos-methyl
10
11. pirimiphos methyl
10
12. chlorpyrifos
10
13. malathion
20
14. quinalphos
10
15. tokuthion (prothiofos)
20
16. methidathion
20
17. profenfos
20
18. ethion
20
19. TPP (SS)
100
20. azinphos-methyl
40
21. pyrazophos
50
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Mar 2011
