AIR
MONI TORING
Appl icat ions
31
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Massachusetts APH Mix
Rtx®-1
Column:
Rtx
®
-1, 60m, 0.32mm ID, 1.0µm (cat.# 10157)
Sample:
Massachusetts APH Mix, (cat.# 34446)
Concentrator:
Nutech 3550A Air Preconcentrator, 100mL of a 40ppbv standard
concentrated at -160°C, thermally desorbed at 150°C and cryofocused
at -185°C
Carrier gas:
helium
Flow rate:
1mL/min.
Oven temp.:
35°C (hold 1 min.) to 220°C @ 8°C/min.
Det:
MS, Agilent 5971
Transfer line temp.: 250°C
Scan range:
35-280amu
Ionization:
EI
Mode:
scan
1. 1,3-butadiene
2. isopentane
3. methyl
tert
-butyl ether
4. hexane
5. benzene
6. cyclohexane
7. 2,3-dimethylpentane
8. heptane
9. toluene-D8
10. toluene
11. octane
12. ethylbenzene
13. 2,3-dimethylheptane
14a.
m
-xylene
14b.
p
-xylene
15.
o
-xylene
16. nonane
17. isopropylbenzene
18. 1-methyl-3-ethylbenzene
19. 1,3,5-trimethylbenzene
20. decane
21. 1,2,3-trimethylbenzene
22.
p
-isopropyltoluene
23. butylcyclohexane
24. undecane
25. dodecane
GC_AR00697
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