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Column:
Rtx
®
-500 30m, 0.25mm, 0.15µm (cat.# 10750);
GC:
Agilent 6890+;
Sample:
Wellington Laboratories BDE Mix C (300pg/µL each in nonane);
Inj.:
1µL splitless injection,
drilled Uniliner
®
(cat.# 21054);
Oven temp.:
100°C (hold 0.64 min.) to 110°C @ 10°C/min. (hold 0 min.) to 180°C @ 80°C/min. (hold 23 min.) to 350°C @ 5°C/min.;
Flow rate:
constant @ 1.5mL/min;
Injector temp.:
300°C;
Instrument configuration:
Micromass Autospec-UltimaNT (High Resolution Mass Spectrometer); Source Temperature: 300°C
NB DecaBDE (last elutor)
elutes at ~43 min.
Figure 2
The Rtx
®
-500 column completely separates PBDE congeners in less than 45 minutes in a GC/MS analysis.
Chromatogram courtesy of Ontario
Ministry of the Environment
Reference materials courtesy of
Wellington Laboratories, Guelph,
Ontario, Canada
www.well-labs.comUS Distributor:
TerraChem Inc. U.S.A.
8600 Shawnee Mission Pkwy.,
Suite 305
Shawnee Mission, KS 66202
Phone: 913-722-4919
Toll-free: 877-809-7039
Fax: 913-722-4669
Website:
http://www.terrachem.comEmail:
info@terrachem.comOrdering Information
| Rtx
®
-500 Columns (Fused Silica)
(Crossbond
®
carborane/dimethyl polysiloxane) Stable to 380°C
ID
df (µm)
temp. limits
30-Meter
60-Meter
0.25mm 0.15
-60°C to 380°C
10750
10751
0.53mm 0.15
-60°C to 380°C
10752
GC_EV00616
Column:
Rtx
®
-500 30m, 0.53mm ID, 0.15µm
(cat.# 10752)
GC:
Agilent 5890
Sample:
Wellington Laboratories BDE-Mix C (300pg/µL
each in nonane)
Inj.:
1.0µL direct injection, drilled Uniliner
®
(cat.# 21054)
Inj. temp.:
380°C
Carrier gas:
hydrogen, constant pressure
Linear velocity:
7.69mL/min. (66.7 cm/sec.) @ 100°C
Dead time:
CH
2
Cl
2
headspace 0.76 min. @ 100°C
Make-up gas:
40mL/min.
Oven temp.:
100°C (hold 1 min.) to 260°C @ 15°C
(hold 5 min.) to 380°C @ 15°C
(hold 15 min.)
Peak
IUPAC #
1. 4-bromodiphenyl ether
3
2. 4,4'-dibromodiphenyl ether
15
3. 2,4-dibromodiphenyl ether
7
4. 2,2',4-tribromodiphenyl ether
17
5. 2,4,4'-tribromodiphenyl ether
28
6. 2,2',4,5'-tetrabromodiphenyl ether
49
7. 2,3',4',6-tetrabromodiphenyl ether
71
8. 2,2',4,4'-tetrabromodiphenyl ether
47
9. 2,3',4,4'-tetrabromodiphenyl ether
66
10. 3,3',4,4'-tetrabromodiphenyl ether
77
11. 2,2',4,4',6-pentabromodiphenyl ether
100
12. 2,3',4,4',6-pentabromodiphenyl ether
119
13. 2,2',4,4',5-pentabromodiphenyl ether
99
14. 2,2',3,4,4'-pentabromodiphenyl ether
85
15. 3,3',4,4',5-pentabromodiphenyl ether
126
16. 2,2',4,4',5,6'-hexabromodiphenyl ether
154
17. 2,2',4,4',5,5'-hexabromodiphenyl ether
153
18. 2,2',3,4,4',5'-hexabromodiphenyl ether
138
19. 2,2',3,4,4',5',6-heptabromodiphenyl ether
183
20. decabromodiphenyl ether
209
Figure 3
When used with less expensive ECD methodology, an Rtx
®
-500 column resolves PBDEs in 30 minutes.
for
more
info
request Applications Note 59389A.