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| 1 | Fate and transport of theβ-adrenergic agonist ractopamine hydrochloride in soil–water systems显示文摘The feed additive ractopamine hydrochloride was fortified at four concentrations into batch vials containing soils that differed in both biological activity and organic matter(OM).Sampling of the liquid layer for 14 days demonstrated that ractopamine rapidly dissipated from the liquid layer. Less than 20% of the fortified dose remained in the liquid layer after 4 hr,and recoveries of dosed ractopamine ranged from 8 to 18% in the liquid layer at 336 hr. Sorption to soil was the major fate for ractopamine in soil:water systems, i.e., 42%–51% of the dose at14 days. The major portion of the sorbed fraction was comprised of non-extractables; a smaller fraction of the sorbed dose was extracted into water and acetone, portions which would be potentially mobile in the environment. Partitioning coefficients for all soils suggested strong sorption of ractopamine to soil which is governed by hydrophobic interactions and cation exchange complexes within the soil OM. Ractopamine degradation was observed, but to mostly non-polar compounds which had a higher potential than ractopamine to sorb to soil. The formation of volatiles was also suggested. Therefore, despite rapid and extensive soil sorption,these studies indicated a portion of ractopamine, present in manures used to fertilize soils,may be mobile in the environment via water-borne events. | Heldur Hakk Weilin L.Shelver Francis X.M.Casey | 2016 | Journal of Environmental Sciences2016，28，7： | 2 |
| 2 | Comparative absorption and bioaccumulation of polybrominated diphenyl ethers following ingestion via dust and oil in male rats显示文摘 | Huwe J K Hakk H Smith D J | 2005 | Environmental Science & Technology2005，42，： | 1 |
| 3 | Toxicokineties of polybrominated diphenyl ether congeners 47,99,100, and 153 in mice显示文摘 | Staskal DF Hakk H Bauer D | 2006 | Toxicol Sci2006，94，1： | 1 |
| 4 | Fate and transport of 17fl-estradiol in soil-water systems 显示文摘 | Casey F X M Larsen G L Hakk H | 2003 | Environ Sci Technol2003，37，11： | 1 |
| 5 | Fate and transport of 17β- estradiol in soil-water system显示文摘 | Casey F X M Larsen G L Hakk H | 2003 | Environmental Science and Technology2003，37，11： | 1 |
| 6 | Metabolism in the toxicokinetics and fate of brominated flame retardants - a review 显示文摘 | Hakk H Letcher R J | 2003 | Environ- ment International2003，29，6： | 1 |
| 7 | Toxicokinetics of the flame re- tardant hexabromocyclododecane gamma:Effect of dose, timing, route, repeated exposure, and metabolism显示文摘 | Szabo D T Diliberto J J Hakk H | 2010 | Toxicological Sciences2010，117，2： | 1 |
| 8 | Outer membrane proteins of pathogenic spirochetes显示文摘 | CULLEN P A HAKKE D A ADLER B | 2004 | FEMS Microbiology Reviews2004，28，： | 1 |
| 9 | Tissue disposition, excre- tion and metabolism of 2,2', 4,4', 6-pentabromodiphenyl ether (BDE - 100) in male Sprague-Dawley rats 显示文摘 | HAKK H HUWE J LOW M | 2006 | Xenobiotica2006，36，： | 1 |
| 10 | Persistence and fate of 17β-estradiol and testosterone in agricultural soils显示文摘 | Fan ZS Casey FXM Hakk H | 2007 | Chemosphere2007，67，5： | 1 |
| 11 | Fate and transformation of an estrogen conjugate and its metabolites in agricultural soils显示文摘 | Shrestha S L Casey F X Hakk H | 2012 | Environmental Science & Technology2012，46，11： | 1 |
| 12 | Metabolism in The Toxicokineties and Fate of Brominated Flame Retardants -A Review 显示文摘 | Hakk H Letcher R J | 2003 | Environment International2003，29，6： | 1 |
| 13 | Tissue distribution,excretion,and metabolism of 1,2,7,8-tetrachlorodibenzo-p-dioxin in the rat显示文摘 | Hakk H Larsen G Feil V | 2001 | Chemosphere2001，42，8： | 1 |
| 14 | Metabolism in the toxicokinetics and fate of brominated flame retardants--a review显示文摘 | Hakk H Leteher R J | 2003 | Environ Internat2003，29，： | 1 |
| 15 | Association between adiponectin, resistin, insulin resistance, and colorectal tumors显示文摘 | Guzin Gonullu Hakk? Kahraman Abdulkerim Bedir Ahmet Bektas Idris Yücel | 2010 | International Journal of Colorectal Disease2010，，2： | 1 |
| 16 | Control architecture in optical burstswitched WDM networks 显示文摘 | Xiong Yijun Cankaya Hakk i C | 2000 | IEEE Journal on selected areas in communications2000，18，10： | 1 |
| 17 | Fate and transport of testos- terone in agricultural soils显示文摘 | Casey F X M Hakk H Simtinek J | 2004 | Environmental Science & Technology2004，38，3： | 1 |
| 18 | Metabolism in the toxicokinetics and fate of brominated flame retardants-a review显示文摘 | Hakk H Letcher R J | 2003 | Environment International2003，29，6： | 1 |
| 19 | Decabromodiphenyl ether in the rat: Absorption, distribution, metabolism, and excretion显示文摘 | MORCK A HAKK H ORN U | 2003 | Drug Metabolism and Disposition2003，31，7： | 1 |
| 20 | Persistence and fate of17β-estradiol and testosterone in agricultural soils显示文摘 | FAN Z CASEY F X M HAKK H | 2007 | Chemosphere2007，67，： | 1 |
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