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Rodríguez-Maroto JM García-Delgado RA Gómez-Lahoz C Vereda-Alonso C García-Herruzo F Muñoz MP 《Environmental monitoring and assessment》2003,89(2):165-177
Lead and cadmium contamination of an agricultural soil has been studied using batch and column experiments. Thermodynamics of theretention phenomena may be represented by a Langmuir isotherm foran aqueous metal concentration up to 100 mg L-1. First order kinetics with respect to the solid phase yield good predictabilityfor both batch and column experiments. Kinetics and thermodynamics of lead retention predominate over those ofcadmium. As a consequence, lead is preferentially retainedand can even displace sorbed cadmium. In the event of anspill involving both metals, cadmium would move further inthe soil and its aqueous concentration downstream could beeven higher than that of the influent solution, increasingpotential risks. A two-region model has been used to fit all the experimental results. Satisfactory predictions for column experiments are obtained with parameters which are consistent with those obtained for the batch experiments, for which sorption is described by a Langmuir isotherm including competitive retention. 相似文献
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Maya Thangavelu PhD Eugene Pergament Rafael Espinosa Iii Stefan K. Bohlander 《黑龙江环境通报》1994,14(7):583-588
We characterized by microdissection and fluorescence in situ hybridization (FISH) two marker chromosomes: (1) a de novo, acrocentric marker chromosome detected in 88 per cent of the amniotic fluid cells of one of two physically and developmentally normal twins; and (2) a metacentric marker chromosome present in a phenotypically normal female. Analysis of FISH probes developed from the marker chromosomes indicated that the marker chromosomes in cases 1 and 2 were del(14)(q11) and a derivative chromosome from a Robertsonian translocation, respectively. Microdissection in combination with FISH may prove to be a valuable technique in determining the chromosomal origin of de novo marker chromosomes and unbalanced structural rearrangements detected during prenatal diagnosis. 相似文献
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de Grenade Rafael Rudow Joshua Taboada Hermoza Rossi Adauto Aguirre Maria Elena Scott Christopher A. Willems Bram Schultz Jennifer L. Varady Robert G. 《Regional Environmental Change》2017,17(3):789-802
Regional Environmental Change - Mountainous areas with extreme elevation gradients and corresponding ranges of biophysical and socioeconomic conditions are highly vulnerable to global change. We... 相似文献
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Bianco Graciela Eugenia Suarez Eva Cazon Lauro de la Puente Teresita Beatriz Ahrendts Marcelo Rafael Benitez De Luca Julio César 《Environmental science and pollution research international》2017,24(26):21146-21152
Environmental Science and Pollution Research - Little is known about biosecurity measures and toxic effects during pesticide application in the province of Jujuy, Argentina, particularly concerning... 相似文献
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Amado Jesus Rafael Rodriguez Prada Ariadna Lafourcade Diaz Jesus Garcia Souto Raimundo Nonato Picanço Arranz Júlio Cesar Escalona de Souza Tatiane Pereira 《Environmental science and pollution research international》2020,27(9):9410-9423
Environmental Science and Pollution Research - In this study, the essential oil (EO) from leaves of Croton linearis Jacq was extracted and characterized by GC/MS. The EO hydrophilic-lipophilic... 相似文献
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de la Flor María Patricia Camarillo Rafael Martínez Fabiola Jiménez Carlos Quiles Rafael Rincón Jesusa 《Environmental science and pollution research international》2021,28(19):23720-23730
Environmental Science and Pollution Research - For the photocatalytic degradation of antioxidant 2,6-di-tert-butyl-hydroxytoluene (BHT), several TiO2-based composites have been prepared in MWCNT... 相似文献