This note presents a fully automated analysis system for the determination of Δ9-tetrahydrocannabinol (THC) and its metabolites in blood serum. Automation is based on the GERSTEL MultiPurpose Sampler...

Liquid-liquid extractions have long been performed manually and are used to extract and concentrate analytes from aqueous matrices. Inclusion of liquid-liquid extraction in many official methods...

Solid phase extraction (SPE) is one of the sample preparation methods most widely used by chromatographers, as can be seen from the large number of SPE methods found in the literature.

Water quality is of the utmost importance and recently the importance of analyzing water for emerging contaminants has been brought to light. Among the emerging compounds being analyzed are perfluorinated chemicals (PFCs) which have been found to be persistent environmental contaminants derived from various industries.

In the work presented here, highly sensitive determination of around 100 contaminants in surface water in the concentration range from low double-digit to low triple-digit pg/L was performed.

Laboratory samples are typically extracted prior to analysis by sensitive GC-MS or LC-MS/MS methods to separate the analytes of interest from the bulk of matrix components that could interfere with the analysis. Typical extraction methods include liquid-liquid extraction or solid phase extraction strategies

In-time TMS Derivatization and GC/MS Determination of Sugars, Organic Acids and Amino Acids for High Throughput Metabolomics Studies.

Comparison of EG-Silicone-SBSE and Derivatization-PDMS-SBSE for the Analysis of Phenolic Compounds and Off-flavors in Water.

Evaporative Concentration of Substances Listed in the European Water Framework Directive (2000/60/EC and 2008/105/EC). A Performance Comparison Between an automated System and a Manual System.