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Agilent Technologies G1888 User Manual

Agilent Technologies G1888
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110 User Information
Developing Methods
Varying Oven Temperature
The oven temperature can have a profound effect on the
concentration of analyte that passes into the headspace gas. In
general, as the oven temperature increases, the amount of gas
entering the headspace from the sample increases, increasing
the pressure in the vial and delivering more analyte to the GC.
This increases the sensitivity of the analysis.
Consider the following when choosing an oven temperature:
Over-pressurization of the headspace vial could be
dangerous.
Unstable compounds could degrade at elevated
temperatures.
There are two ways you can program the Headspace Sampler to
increase oven temperature in steps:
Use Chain Methods (see Chaining Methods on page 104) and
set the oven temperature higher in each method in the chain
Use Param Increment (see Parameter Increment on page 68).
NOTE
Do not set the oven temperature within 10 °C of the boiling point of any
solvents in the sample, except in special cases.
Loop and Transfer Line temperatures should be set higher than the highest
temperature the oven will reach in a programmed sequence.
medium_standard.book Page 110 Tuesday, February 17, 2004 10:14 AM

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Agilent Technologies G1888 Specifications

General IconGeneral
BrandAgilent Technologies
ModelG1888
CategoryLaboratory Equipment
LanguageEnglish

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