INVESTIGATION OF ANTIOXIDANTS POTENTIAL AGAINST 2FAL IN NATURAL ESTERS USING UV SPECTROPHOTOMETRY AND HPLC METHODS
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Sep 11, 2019
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Abstract
In this investigation Natural Esters (NE) like Punga Oil (PO), Coconut Oil (CCO) and Corn Oil (CO) are chosen for based on the wide market availability in India. These natural esters are blended with furan like 2-Furaldehyde (2FAL), which is considered as the principal derivative due to incipient fault in power transformer. These natural esters with 2FAL are blended in 1 g/L proportion to understand the impact of furan on the critical properties of natural esters. The prepared samples are therefore amalgamated with natural and synthetic type antioxidants (AO), which are chosen after carefully investigating the mechanisms of antioxidant. The analysis is done using UltraViolet Spectrophotometry (UVSPEC) and High-Performance Liquid Chromatography (HPLC) through columns to estimate the peak absorbance wavelength and retention time according to IEC standard. Thus antioxidant BHA is appropriate additives to reclaim 180 % of insulating property of natural esters depreciated by furans and deflate furan concentration from 60 % (1000 ppm to 632 ppm) to 1 % (1000 ppm to 9.8 ppm ). All the natural esters show good retention time when amalgamated with antioxidants, but BHA is highly stable with Punga Oil (PO).
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References
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