Measurement of FOG in wastewater is a crucial parameter in environmental monitoring performed by water suppliers’ laboratories and environmental authorities. One method involves passing a volume of water through a filter which collects both FOG and solid particulates; after drying the filter, the FOG is determined by Soxhlet analysis.*
However the Soxhlet method is a long and laborious process, requires skilled operators and the use of hazardous solvents which need to be disposed of. Furthermore, the method is not very accurate or sensitive, and the solvents that are used today are unlikely to extract all the FOG.
This webinar shows how the MQC+ Benchtop NMR analyser can replace Soxhlet analysis for measurement of FOG on a single filter sheet, thus enabling sample automation as well as higher throughput, accuracy and sensitivity.
*The Determination of Oil and Greases in Waste Water by Filtration, Solvent Extraction and Gravimetry, in Methods for the examination of waters and associated materials, 1987 (ISBN 011 752076 4)
Date: Tuesday 28th April
Dr Kevin Nott is the product manager and applications specialist for the MQC+ analyser. He completed his first and Master degrees in chemistry at the University of East Anglia (1991-1995) which included a research project at the Institute of Food Research. He then studied for his Doctorate at the University of Cambridge (1995-1999) for which he investigated NMR relaxometry and imaging (MRI) applications in the food industry. After working as a post-doctoral researcher, he joined Oxford Instruments in May 2005. Since then he has been primarily working on bench-top (also known as time domain) NMR applications for quality control and research in the food, agriculture, polymer, petrochemical, pharmaceutical, water and other industries.