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Using the UNITY Method Development Mode to Analyze Dried Foodstuffs by Direct Desorption
21 Jul 2014This application note demonstrates how the automatic method development mode of the UNITY™ thermal desorber allows samples to be sequentially desorbed at progressively higher temperatures. This allows identification of the desorption conditions that produce a representative VOC profile without causing degradation of the sample.
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UNITY-xr
Markes International LtdVersatile single-tube analytical thermal desorption unit for GC or GC–MS
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Gas ChromatographyGas chromatography (GC) is an analytical technique used to separate and quantitate mixtures of small and volatile compounds. Gas chromatographs or GC systems include components such as GC columns, detectors, pumps and autosamplers. Choose from packed or capillary GC columns, flame ionization (FID), photoionization (PID) electron capture detectors and selective or non-selective detectors. Find the best gas chromatographs in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Volatile Organic Compounds (VOCs)Volatile organic compounds (VOCs) are chemicals that have a low boiling point. Some VOCs are harmful to human health, whereas others can be used to determine the shelf-life of foods samples. Food TestingFood testing refers to a variety experiments including PCR, mass spectrometry, processing, QuEChERS, analyzing and Kjeldahl.VolatilesVolatiles are a group of compounds that have a low boiling point and evaporate at room temperature. Volatiles, such as volatile organic compounds (VOCs), can be used to determine shelf-life of food samples. GC-MS is typically used to analyze volatiles.