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www.restek.comGC COLUMNS |
APPLICATION-SPECIFIC COLUMNS
Environmental
Polycyclic Aromatic Hydrocarbons (PAHs) Analysis
Similar to: (50%-phenyl)-methylpolysiloxane
Rxi®-17Sil MS Columns
(fused silica)
(midpolarity Crossbond® phase)
• 340/360 °C upper temperature limits.
• Excellent inertness and selectivity for active environmental compounds,
such as PAHs.
• Equivalent to USP phase G3.
• Low bleed for use with sensitive detectors, such as MS.
Rxi®-17Sil MS Structure
x
Si
O
50%
CH
3
CH
3
Si
O
y
R
O
CH
3
CH
3
Si
CH
3
CH
3
Si
similar phases
DB-17ms, VF-17ms
*Maximum temperatures listed are for shorter length columns. Longer columns may have a different maximum temperature.
15-Meter
30-Meter
60-Meter
ID
df
temp. limits* cat.#
price
cat.#
price
cat.#
price
0.25 mm 0.25 µm 40 to 340/360 °C 14120
14123
14126
0.32 mm 0.25 µm 40 to 340/360 °C 14121
14124
10-Meter
20-Meter
ID
df
temp. limits
cat.#
price
cat.#
price
0.15 mm 0.15 µm 40 to 340/360 °C 43820
43821
0.18 mm 0.18 µm 40 to 340/360 °C
14102
0.36 µm 40 to 340/360 °C
14111
Polycyclic Aromatic Hydrocarbons
on Rxi®-17Sil MS
GC_EV1160
Column
Rxi®-17Sil MS, 30 m, 0.25 mm ID, 0.25 µm (cat.# 14123)
Sample
PAH supplement mix for method 8100 (cat.# 31857)
EPA Method 8310 PAH mixture (cat.# 31841)
Triphenylene (custom)
Diluent:
Dichloromethane
Conc.:
10 ppm
Injection
Inj. Vol.:
0.5 µL splitless (hold 1.75 min)
Liner:
Auto SYS XL PSS split/splitless w/wool (cat.# 21718)
Inj. Temp.:
320 °C
Purge Flow:
75 mL/min
Oven
Oven Temp.:
65 °C (hold 0.5 min) to 220 °C at 15 °C/min to 330 °C at 4 °C/min (hold 15 min)
Carrier Gas
He, constant flow
Flow Rate:
2.0 mL/min
Detector
FID@ 320 °C
Instrument
PE Clarus 600 GC
Acknowledgement
Instrument provided by PerkinElmer
Peaks
1. Naphthalene
2. 2-Methylnaphthalene
3. 1-Methylnaphthalene
4. Acenaphthylene
5. Acenaphthene
6. Fluorene
7. Phenanthrene
8. Anthracene
9. Fluoranthene
10. Pyrene
11. Benz[a]anthracene
12. Chrysene
13. Triphenylene
14. Benzo[b]fluoranthene
15. Benzo[k]fluoranthene
16. Benzo[j]fluoranthene
17. Benzo[a]pyrene
18. 3-Methylcholanthrene
19. Dibenz[a,h]acridine
20. Dibenz[a,j]acridine
21. Indeno[1,2,3-cd]pyrene
22. Dibenz[a,h]anthracene
23. Benzo[ghi]perylene
24. 7H-Dibenzo[c,g]carbazole
25. Dibenzo[a,e]pyrene
26. Dibenzo[a,i]pyrene
27. Dibenzo[a,h]pyrene
Excellent
resolution
and peak
shape for
PAHs that
cannot be
resolved
by MS.