PMID: 12666912Apr 2, 2003Paper

Identification and characterization of sorption domains in soil organic matter using strucuturally modified humic acids

Environmental Science & Technology
Amrith S GunasekaraBaoshan Xing

Abstract

The sorption of phenanthrene was examined in humic acids (HAs) from different sources: a compost, a peat soil, and a mineral soil. Sub-samples of each HA were subjected to bleaching or hydrolysis to remove predetermined chemical groups from their structures. Bleaching successfully removed a large percentage of rigid, aromatic moieties, whereas hydrolysis removed the mobile, carbohydrate components. Phenanthrene sorption by all HAs was nonlinear (N < 1). However, the phenanthrene isotherms of the bleached HAs were more linear than those of the untreated HAs, whereas the removal of the carbohydrate components by hydrolysis produced more nonlinear isotherms. The introduction of pyrene to the phenanthrene sorption system yielded more linear isotherms for all the HAs, indicative of competitive sorption. Proton spin-spin (1H T2) relaxation determined by nuclear magnetic resonance (NMR) was used to identify separate rigid (condensed) and flexible (expanded) 1H populations and to determine their distribution. These 1H domains were highly sensitive to temperature and correlated well with reported glass transition temperatures for HAs. In combination with the chemical treatments, sorption, and spectroscopic data, we were able to observe ...Continue Reading

References

Feb 24, 2001·Environmental Pollution·B Xing
Jul 17, 2001·Environmental Science & Technology·W J BraidaJ J Pignatello
May 25, 2002·Environmental Science & Technology·Myrna J SalloumPatrick G Hatcher

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Citations

Oct 17, 2008·Environmental Science and Pollution Research International·Bo PanBaoshan Xing
May 25, 2011·Environmental Science & Technology·Khanneh Wadinga FombaFrank-Dieter Kopinke
May 31, 2012·Environmental Science & Technology·Katherine Young Bell, Eugene J Leboeuf
Oct 20, 2012·Environmental Science & Technology·Charisma LattaoJoseph J Pignatello
Sep 6, 2012·Environmental Science & Technology·James G LongstaffeAndré J Simpson
Aug 10, 2011·Chemosphere·Wen ZhangHongwen Sun
Jul 10, 2010·Journal of Environmental Sciences (China)·Chengxia JiaGang Pan
Jan 29, 2010·Journal of Hazardous Materials·S W Chang ChienMadhava Rao Mannepalli
Nov 23, 2015·Journal of Hazardous Materials·Jean Manuel CastilloEsperanza Romero
Oct 9, 2007·Chemosphere·Ahmad Gholamalizadeh AhangarDavid J Chittleborough
Mar 26, 2009·Pest Management Science·Amrith S GunasekaraRonald S Tjeerdema
Nov 29, 2005·Chemosphere·Chongshan LiangCongqiang Liu
May 20, 2014·Bulletin of Environmental Contamination and Toxicology·Ming ZhangYong Sik Ok
Sep 20, 2008·Environmental Pollution·César PlazaAlfredo Polo
Aug 7, 2012·Chemosphere·James G LongstaffeAndré J Simpson
Feb 18, 2006·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Jin Hur, Mark A Schlautman
Jul 4, 2012·Psychological Inquiry·Kurt GrayAdam Waytz
Oct 11, 2003·Journal of Environmental Quality·Myrna J SimpsonPatrick G Hatcher
Jan 14, 2005·Journal of Environmental Quality·Kaijun Wang, Baoshan Xing
Jun 2, 2006·Journal of Environmental Quality·Joseph J PignatelloBaoshan Xing
Jun 7, 2011·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Maria À OlivellaAnna Oliveras
May 16, 2017·Personality and Social Psychology Review : an Official Journal of the Society for Personality and Social Psychology, Inc·Chelsea Schein, Kurt Gray
Jun 15, 2005·Analytical Chemistry·Carolyn J Koester, Amal Moulik
Jan 13, 2006·Langmuir : the ACS Journal of Surfaces and Colloids·Marta BerkaJames A Rice
Apr 30, 2008·Environmental Science & Technology·Baoliang ChenJerald L Schnoor
Sep 22, 2005·Environmental Science & Technology·Naoko WatanabeThomas M Young
Sep 30, 2006·Environmental Science & Technology·Kun YangBaoshan Xing

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