Lj. Standley et La. Kaplan, ISOLATION AND ANALYSIS OF LIGNIN-DERIVED PHENOLS IN AQUATIC HUMIC SUBSTANCES - IMPROVEMENTS ON THE PROCEDURES, Organic geochemistry, 28(11), 1998, pp. 689-697
Procedures for the extraction of aquatic humic substances and analysis
of their lignin-derived phenols were assessed and altered to simplify
and shorten XAD-8 resin cleaning, reduce losses due to sorption, and
optimize oxidative release of phenols without increasing their transfo
rmation. The revised cleaning procedures require 5 rather than 120 h a
nd sorptive losses of humic acids were reduced 7%. Coefficients of var
iation for individual phenols in the final method ranged from 1 to 11%
. The method was used to analyze lignin-derived phenols in White Clay
Creek watershed humics, Suwannee River humics (IHSS), and Lake Washing
ton sediments. (C) 1998 Elsevier Science Ltd. All rights reserved.