My the hollow fibre liquid phase microextraction lpme

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: m; internal diameter, 600 μm). Analytes are extracted from an aqueous sample (donor phase), into the organic solvent immobilized in the pores of the fibre wall, and into the acceptor solution placed inside the lumen of the hollow fiber (acceptor phase). Subsequently, the acceptor solution is removed by a micro -syringe and transferred for the final analysis (e.g., gas chromatography, high performance liquid chromatography, capillary electrophoresis). The technique is considered green as only a few μL of organic solvent is used as extracting solvent, and often high enrichments are obtained largely from the large donor to acceptor phase ratios. The application of the LPME technique as a sample preparation procedure for the analysis of biogenic amines in food as well as the major and minor fatty acids in palm oil samples will be presented. 50 3rd ICYC 2010 Universiti Sains Malaysia KN-11 23rd-25th June 2010 NOVEL BIOACTIVE SECONDARY METABOLITES FROM BORNEON MARINE ORGANISMS Charles S. Vairappan Laboratory of Natural Products Chemistry, Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah, 88999 Kota Kinabalu, Sabah E-mail: [email protected] Natural products particularly marine derived metabolites are being explored with the hope of finding novel functional molecules. Marine derived organic compounds have extensive past and present use in the treatment of many diseases and serve as compounds of inter est both in their natural form and as templates for synthetic modification. The search for these metabolites is still in its infancy in Malaysia, although we have one of the most diverse marine environments such as lagoons, bays, estuaries, mangroves swamps and fringing coral reefs. These environments are ideal for the growth and existence of a wide variety of seaweed and soft corals, some of which are specific and are not to be found in other parts of the world. The exploration of secondary metabolites fro m marine organisms is mainly focused on seaweed, soft corals and sponges. Seaweed chemistry has always been focused on red algae...
View Full Document

This note was uploaded on 02/17/2011 for the course CHEMISTRY 101 taught by Professor Csr during the Spring '11 term at University of Louisville.

Ask a homework question - tutors are online