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Accurate boiling point determination for medium and heavy
fractions using GC simulated distillation requires columns and
phase polymers that are robust enough to withstand high
temperatures without significant degradation. Metal columns
are a better alternative than fused silica, and the new MXT®-
1HT SimDist columns are the lowest bleed, highest efficiency
column available.
When compared to columns from other manufacturers, MXT®-1HT SimDist columns
meet all D6352 method criteria and easily outperform competitors (Figure 1). In addi-
tion, field testing under accelerated conditions further demonstrates column
robustness, even at 430°C (Figure 2). The exceptionally low bleed and high efficiency
characteristics of the new MXT®-1HT SimDist columns translate directly into assured
method performance, more analyses per calibration, and longer column lifetimes.
• Stable up to 450°C—lowest bleed for longest column
lifetime.
• Reliably meet all ASTM D6352 and D7500 specifications.
• 100% dimethyl polysiloxane phase allows easy
comparisons to historical data.
Increase Productivity: Get More Runs from Your
SimDist Setup Using Next Generation
MXT®-1HT Columns
By Jan Pijpelink, Petrochemical Market Development Manager and Barry Burger, Petrochemical Innovations Chemist
Figure 1 Low bleed, high efficiency MXT®-1HT SimDist columns outperform
competitors (ASTM D6352 conditions).
Lower bleed means:
• Longer column lifetime.
• More stable calibrations.
• Accurate boiling point
determinations.
Restek advantage:
Longer column lifetime
and more accurate data!
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technical literature.
Higher efficiency
means:
• Greater resolution;
analyze more samples
before method criteria
are reached.
• Assured method
performance.
Restek advantage:
Run more samples within
method specifications!
innovative petrochemical solutions
RESTEK REFINED
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PCFL1195A at
Varian
5m x 0.53mm x 0.17μm
Agilent/ J&W
5m x 0.53mm x 0.15μm
Restek
5m x 0.53mm x 0.2μm
Bleed = 61pA
GC_PC1149
GC_PC1151
GC_PC1150
Bleed = 14pA
C50/C52
R = 2.89
C50/C52
R = 1.81
C50/C52
R = 1.84
Bleed = 57pA
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