9300 ACEM

General Description

Thermal desorption is a two-in-one technique: sample collection/concentration and transfer to a detector. Dynatherm instruments capture compounds of interest on adsorbent material packed in glass cartridges, and then introduce the collected chemicals into a gas chromatograph, where the various components are separated, measured and identified. Thermal desorption uses heat instead of solvent extraction to release organic compounds, so there is no long extraction time and no solvent peak in the chromatogram. Two sorbent traps operate in series: the first high-capacity sorbent trap retains desired compounds from large sampling volumes; the second capillary-bore focusing trap injects the collected sample onto a capillary column in a narrow-band plug. Transferring the analytes to the focuser improves injection efficiency, since liters of flow may have been required during sampling to collect enough mass to meet the requirements of the detector. Water interference is minimized: carrier gas evaporates water vapor from the absorbent tube and vents it from the unit with no sample loss. Used for: Assess air toxins/VOCs for ambient and indoor air quality. Food, flavor and fragrance analysis Out gassing and product purity evaluations

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CDS Analytical Inc. - 9300 ACEM
DYNATHERM 9300 ACEM AUTOMATED CONCENTRATING ENVIRONMENTAL MONITOR. System with CD and user manual