Liquid and Large Volume Injection
Application
Automated Liner Exchange for GC Injectors – New Concepts for Handling Dirty Samples
Sample clean-up steps, which are needed in order to prepare for example environmental or food samples for pesticide analysis, are time-consuming and a potential source of errors. Simplification or elimination […]
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Application
Large Volume Injection with Solvent Venting – Application to Trace Detection of Analytes in Water
This study shows the use of the GERSTEL Cooled Injection System (CIS) a programmable Temperature Vaporization (PTV) type inlet for large volume injection of water samples and consequent trace compound […]
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Application
GERSTEL Automated Liner Exchange (ALEX) and its Benefits in GC Pesticide Analysis
Fruit and vegetable extracts that are produced following the well established QuEChERS method typically contain a significant amount of nonvolatile matrix material. After several injections of such extracts into the […]
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Application
Membrane-Assisted Solvent Extraction of Triazines and Other Semivolatile Contaminants Directly Coupled to Larg [...]
Typically membrane-assisted solvent extraction (MASE) is carried out off-line in a vial, from which the organic extract is transferred to a sample vial followed by large-volume injection (LVI). In this […]
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Application
Ultra-Fast Determination of the Hydrocarbon Oil Index by Gas Chromatography using LTM GC
Ultra-fast gas chromatographic methods for determination of the hydrocarbon oil index according to ISO 9377-2 were developed using a low thermal mass column heater (LTM). The column heater consists of […]
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Application
On-Line LC-GC Coupling – A New Method for the Determination of Alkylphenols in Environmental Samples
This paper describes an online LC-GC coupling system that allows fractions from an LC eluant stream to be transferred to a standard GC system. A large volume sampler equipped with […]
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Application
Rapid Automated Screening of Extractable Compounds in Materials for Food Packaging, Medical or Technical Purpo [...]
This application note describes two automated methods for screening of extractable compounds from materials for food packaging, medical or technical purposes. The first method is based on automated liquid extraction […]
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Application
Large Volume Injection with GC/MS Multidimensional Column Switching for Direct Determination of Ethyl Carbamat [...]
A procedure is presented for quantification of ethyl carbamate at low ug/L levels in distilled spirits. A 100 uL large volume injection was used followed by orthogonal 2-dimensional GC/MS with […]
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Application
Determining Phenolic Compounds in Whiskey using Direct Large Volume Injection and Stir Bar Sorptive Extraction
In this study, a method was developed for quantitative determination of seven phenolic compounds in scotch whisky. Two different whisky brands were analyzed by Stir Bar Sorptive Extraction (SBSE), based […]
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