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GCCOLUMNS |
HIGH-PERFORMANCERXI COLUMNS
Rxi® Columns Overview
Figure6
Rxi®columnsareengineered toassurecolumn-to-columnand lot-to-lot reproducibility.
GC_EV00819
Column:
Rxi
®
-5ms, 30m, 0.25mm ID, 0.25µm (cat.# 13423)
Sample:
500µg/mL Isothermal ColumnTest Mix in toluene
Inj.:
1.0µL, split injection (split ratio 1:100), 4mm single gooseneck inlet liner
withwool (cat.# 22405)
Inj. temp.:
250°C
Carrier gas:
hydrogen, constant flow
Linear velocity: 38cm/sec.@ 135°C
Oven temp.:
135°C
Det.:
FID@ 330°C
1. 1,6-hexanediol
2. 4-chlorophenol
3. methyl nonanoate
4. 1-decylamine
5. tridecane
6. 1-undecanol
7. acenaphthylene
8. pentadecane
Column722883
Batch#1
Column717989
Batch#2
Column720331
Batch#3
1
2
3
5
6
7
8
4
LowestBleed
Rxi®columnsaremore stableathigh temperatures thananyothermanufacturer’s column (Figure5), resulting inhigher system sen-
sitivity.This low-bleed characteristic is the result of superior stabilization achievedbyoptimizingpolymer cross-linking and surface
deactivation technologies. Benefits of usingultra-lowbleedRxi® columns include:
• Increased sensitivity, for lower detection limits andbettermatches tomass spectral libraries.
• Faster system stabilization.
• Reduceddetector contamination and less downtime formaintenance.
ExceptionalReproducibility
Chromatographers today need to know that every column they receive is going to perform the same way as the column it replaces.
Unmatchedmanufacturingprecision and stringent quality controlmeanRxi® columns exceed industry standards, resulting in the best
column-to-column reproducibility available asmeasuredby efficiency, retention, bleed, and inertness (Figure 6).
0
2
4
6
8
10
12
14
16
18
20
22
24
20.0
17.5
15.0
12.5
10.0
7.5
5.0
2.5
0.0
GC_EV00822
Reference Peak
1ng tridecane
DB-5ms
DB-5
HP-5ms
ZB-5ms
VF-5ms
ZB-5
Rxi®-5ms
pA
330°C
350°C
Comparison of 30m x 0.25mm ID,
0.25µm 5%-diphenyl columns at
330°C through 350°C; hydrogen
carrier gas; flame ionization
detection.
Improve sensitivityandaccuracyat trace
levelswith lowbleedRxi®columns.
Figure5
Rxi® columnshave the lowest bleedamongallmajor brandsof columns.
Website :
E-mail :
TelNo : 03 9762 2034 . . . inAUSTRALIA
Mar 2011
