Shubhen Kapila
Missouri University of Science and Technology, USA
Title: Determination of Additives, Contaminants and Byproducts in Insulating Liquids with Desorption Electrospary Mass Spectrometry
Biography
Biography: Shubhen Kapila
Abstract
There is a need for rapid determination of additives, contaminants and by-products in insulating liquids. Desorption electrospray ionization (DESI) has emerged as technique of choice for a variety of applications. Use of DESI for characterization and quantification of additives, contaminants and by-products in insulating liquids has been explored in our laboratory. Results obtained for selected target analytes were compared with the results obtained with the traditional methodologies based on high pressure liquid chromatography electrospray ionization mass spectrometry (HPLC-ESI MS), gas chromatography – mass spectrometry (GC-MS) and Fourier transform infrared (FTIR) spectrometry. Results showed that DESI offers a very rapid of quantitative determinations of selected analytes in complex matrices such as the insulating liquids. The most attractive feature of the technique is no or minimal sample pre-treatment thus permitting very rapid analysis. However, the precision obtained with the technique was found to be inferior to that obtained the other technique.