Researchers from Sun Yat-sen University and South China Normal University (both in Guangzhou, China) developed a sample preparation method for extracting the beta-blockers propranolol, atenolol, pindolol, and alprenolol from human plasma and urine samples.
Researchers from Sun Yat-sen University and South China Normal University (both in Guangzhou, China) developed a sample preparation method for extracting the beta-blockers propranolol, atenolol, pindolol, and alprenolol from human plasma and urine samples. The method involved preparing a molecularly imprinted polymer (MIP)–coated solid-phase microextraction (SPME) fiber with propranolol as a template. The MIP coating had an average thickness of 25 µm and was highly crosslinked and porous. The MIP-coated fiber provided specific selectivity for the beta-blockers compared with only nonspecific adsorption achieved using non-imprinted polymer fibers. They linked the SPME method with high performance liquid chromatography for a quantitative analysis.
Gulf Coast Conference: Increasing Density and Viscosity Throughput with Difficult Samples
October 19th 2023Daniel Wolbrecht, senior technical sales consultant at Anton Paar, held a workshop at the Gulf Coast Conference in Galveston, Texas, focusing on how heated autosampler units can help analyze difficult samples.
An In-Depth Look at Passive Sampling to Determine Contaminants of Emerging Concern
September 29th 2023Núria Fontanals, Senior Researcher in the Analytical and Organic Chemistry Department at the Universitat Rovira i Virgili, outlines the benefits of passive sampling in liquids and how the approach can evolve in the future.