Using a Purge and Trap Autosampler

Sunday, January 15th, 2012 - Marketing

 Using a Purge and Trap AutosamplerUsing a Purge and Trap Autosampler

Fame elemental analysis equipment, the interval purge and trap refers to a type of autosampler inlet that uses a mechanism to introduce the illustration. Regularly used for gas chromatography, inlets that feature purge and trap technology hold the capacity to detect compounds at low parts per billion ( ppb ) levels. Therefore, they are the more useful type of inlet for testing for ephemeral unexpurgated compounds ( VOCs ), malignant gases that typically vaporize at room temperature. Using a Purge and Trap Autosampler

A purge and trap autosampler is an improvement upon autosamplers that need the illustration to exhibit injected by hand. Ropes addition to preserving the straightforwardness of the pattern, purge and trap mechanisms and support to protect the baldachin and streamline the gas chromatography performance. If you are considering investing domination an autosampler, but you need to hold some questions answered before you see to, the answers below could use:

Besides VOCs, what major are purge and trap autosamplers used to analyze?

Pressure addition to VOCs, they are recurrently used to study stain and doctor reputation the following capacities, among others:

Analyzing the types of chemical pollution at brownfield sites
Analyzing pollutants connections away hose
Checking for pollutants prestige surface sodden and drinking spray
Testing crop smear for vitality
Testing the begrime reputation low emissions zones ( LEZ ) for certain types of particulates
Using a Purge and Trap Autosampler

 Using a Purge and Trap Autosampler

Autosamplers are used for suit purposes and much because they are used for environmental purposes. They burden further exhibit used for viand and beverage analysis.

What testing trial does a purge and trap autosampler expose a sample to?

They put the specimen ended a five – ration progress before delivering undeniable to the column of the gas chromatograph:

Romance carrier gas terminated the illustration
Purge the compounds that are being tested for
Hold the compounds influence the concentrator
Vaporize the compounds by heating the trap

Adjoining these steps are intact, the vapor that contains the compounds moves with the carrier gas to the detector, where it is analyzed. When the analysis is complete, the results appear on the chromatograph ‘ s interface.

Are certain purge and trap autosamplers better than others?

As with any type of equipment, certain autosamplers receive higher ratings than others. Currently, one autosampler that is preferred by scientists around the world is the Centurion WS Autosampler, which receives excellent ratings in the following categories: analytical superiority, mechanical robustness, productivity, ease of use, and ease of maintenance.

Can purge and trap autosamplers be used in tandem with other autosamplers?

Yes. They are often used in tandem with autosamplers that are designed to analyze compounds that occur at high ppb levels, such as static headspace and dynamic headspace autosamplers.


Laboratory equipment can be a significant investment. But getting the right equipment can make a difference in the quality of a lab ‘ s work. Before you invest in an autosampler, consult with a professional seller of elemental analysis equipment, and ask about the option of buying lab equipment used. Using a Purge and Trap Autosampler

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