Determination of Stilbenes in Blueberries
November 1st 2005There is growing evidence that blueberries have powerful disease-fighting properties. Here the authors explore the research being done in this area, describing the use of a magnetic seector GC-MS SIM method to determine the presence of phenolic antioxidants in blueberries.
Profiles in Practice: Advances in Science and Geopolitical Issues
November 1st 2005The Centers for Disease Control and Prevention (CDC) estimates that each year in the United States, 76 million people get sick, 325000 are hospitalized and 5000 die from food-related illnesses. Food-borne illness is a serious public health problem. -National Library for the Environment, Food Safety Issues in the 107th Congress, 2001, Donna U. Vogt.
Meeting Preview: ExTech and HTC-9
November 1st 2005The Eighth International Symposium on Advances in Extraction Techniques (ExTech) highlights new extraction technologies for chemical and biochemical analysis in laboratory and on-site settings. Generally, the series focuses on solvent-free sample preparation including methods for rapid and selective enrichment prior to analysis and micro-sample preparation. Major emphasis will be placed on the fundamental understanding of extraction processes that result in greater selectivity and efficiency in method development and a rationalization of method selection for specific applications. On-site environmental methods and biomedical applications will be covered. The ExTech symposium series was initiated in 1999 by Professor Janusz Pawliszyn. The 2006 edition will focus especially on passive sampling methods, use of molecular imprinted polymers, biologically modified sorbents, novel coatings and sorbent material and will take place on 6–8 February at the Moat House Hotel, York.
Evaluation of Fatty Acids as Biochemical Markers for Source Identification of Indian Opium
October 1st 2005This method describes an attempt to identify the source of licit Indian opium based on the fatty acid profile. The analysis was based on gas chromatography (GC) with flame ionization (FID) and mass spectrometric detectors (MS). A total of 124 Indian opium samples were collected and fingerprinted for the presence of various fatty acids. Qualitative analysis of fatty acids indicated the acids such as behenic, stearic and lignoceric were significant biochemical markers, making it a useful method to identify the source of opium for forensic purposes.