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71
GC COLUMNS |
APPLICATION-SPECIFIC COLUMNS
Environmental
Rxi®-XLB Columns
(fused silica)
(low-polarity proprietary phase)
• General-purpose columns exhibiting extremely low bleed. Ideal for many GC-MS
applications, including pesticides, PCB congeners (e.g., Aroclor mixes), PAHs.
• Unique selectivity.
• Temperature range: 30 °C to 360 °C.
similar phases
DB-XLB, VF-Xms, MR1, ZB-XLB
*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 0.10 µm 30 to 340/360 °C
13705
13708
0.25 µm 30 to 340/360 °C
13720
13723
13726
0.50 µm 30 to 340/360 °C
13738
1.00 µm 30 to 340/360 °C
13753
0.32 mm 0.25 µm 30 to 340/360 °C
13724
13727
0.50 µm 30 to 340/360 °C
13739
1.00 µm 30 to 340/360 °C
13754
0.53 mm 0.50 µm 30 to 320/360 °C
13740
20-Meter
ID
df
temp. limits
cat.#
price
0.18 mm 0.18 µm 30 to 340/360 °C
43702
EU PCB Congeners on Rxi®-XLB
PCB Congeners Analysis
1
2
PCB 31 & 28
1
2
3
4
5
6
7
8
9
9.35
9.85
10.35
10.85
11.35
11.85
12.35
12.85
13.35
13.85
14.35
14.85
15.35
15.85
16.35
16.85
17.35
9.90 9.95 10.00 10.05 10.10 10.15 10.20 10.25 10.30
Time (min)
GC_EV1240
Column
Rxi®-XLB, 30 m, 0.25 mm ID, 0.25 µm (cat.# 13723)
Sample
PCB congener standard #2 (cat.# 32294)
PCB 31 (cat.# custom)
Diluent:
Dichloromethane
Conc.:
3.5 ppm
Injection
Inj. Vol.:
0.5 µL splitless (hold 1.75 min)
Liner:
2.0 mm ID straight inlet liner w/wool (cat.# 21718)
Inj. Temp.:
300 °C
Purge Flow:
50 mL/min
Oven
Oven Temp.:
40 °C (hold 2 min) to 240 °C at 30 °C/min (hold 2 min) to 340 °C at 10 °C/min
(hold 5 min)
Carrier Gas
He, constant flow
Flow Rate:
1 mL/min
Detector
MS
Mode:
Scan
Transfer Line
Temp.:
300 °C
Analyzer Type:
Quadrupole
Source Temp.:
280 °C
Electron Energy: 70 eV
Ionization Mode: EI
Scan Range:
45-550 amu
Scan Rate:
5 scans/sec
Instrument
PE Clarus 500 GC & Clarus 500 MS
Peaks
1. PCB 31
2. PCB 28
3. PCB 52
4. PCB 101
5. PCB 118
6. PCB 153
7. PCB 138
8. PCB 180
9. PCB 194