IncreaseProductivity:GetMoreRuns fromYour SimDist Setup
UsingNextGenerationMXT®-1HTColumns
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Accurate boiling point determination formedium andheavy fractions usingGC simulateddistillation requires columns andphase
polymers that are robust enough towithstandhigh temperatureswithout significant degradation.Metal columns are a better alter-
native than fused silica, and thenewMXT®-1HTSimDist columns are the lowest bleed,highest efficiency column available,outper-
formingothermetal columns for criticalmethodparameters.
Lowbleed is an important column characteristic in simulateddistillation.Highphasebleed shortens retention times,making itnec-
essary to frequently rerunboilingpoint calibrations. In contrast,witha lowbleed column, the stationaryphase remains inplacegiv-
ing stable retention times. This results in longer in-calibrationperiods, extended column lifetimes, andmore accurate final boiling
point determinations. Efficiency is also a critical factor as columns that are higher in efficiency produce sharper peaks and higher
resolution values,meaning thatmore samples canbe analyzedbefore theminimum resolution specification is reached.
When compared to columns from othermanufacturers,MXT®-1HT SimDist columnsmeet all D6352method criteria and easily
outperform competitors (Figures 1 and 2). In addition, field testing under accelerated conditions further demonstrates column
robustness, evenat 450°C (Figure3).The exceptionally lowbleedandhigh efficiency characteristicsof thenewMXT®-1HTSimDist
columns translate directly into assuredmethodperformance,more analyses per calibration, and longer column lifetimes.
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Stableup to450°C—lowest bleed for longest column lifetime.
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Reliablymeet all ASTMD6352andD7500 specifications.
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100%dimethyl polysiloxanephaseallows easy comparisons tohistorical data.
Figure1
Lowbleed, highefficiencyMXT®-1HTSimDist columnsoutperformcompetitors (ASTMD6352conditions).
Higherefficiencymeans:
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Greater resolution; analyzemore samples
beforemethod criteriaare reached.
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Assuredmethodperformance.
Lowerbleedmeans:
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Longer column lifetime.
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More stable calibrations.
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Accurateboilingpoint determinations.
RESTEKADVANTAGE:
Runmore sampleswithinmethod
specifications!
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Time (min)
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GC_PC1149
GC_PC1151
GC_PC1150
Varian,5mx0.53mmx0.17μm
Agilent/ J&W,5mx0.53mmx0.15μm
Restek,5mx0.53mmx0.2μm
Bleed=14pA
Bleed=61pA
Bleed=57pA
C50/C52
R=2.89
C50/C52
R=1.81
C50/C52
R=1.84
RESTEKADVANTAGE:
Longer column lifetimeandmore
accuratedata!
Website :
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: 03 9762 2034 . . . inAUSTRALIA
