Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Holger Maldonado"'
Publikováno v:
Revista de Química, Vol 15, Iss 2 (2001)
El artículo no presenta resumen.
Externí odkaz:
https://doaj.org/article/06a41b5f20354152a4a8e568db56c007
Publikováno v:
In Hydrometallurgy 2003 71(1):191-200
Publikováno v:
Journal of Colloid and Interface Science. 357:487-496
Lessonia kelps (L. trabeculata and L. nigrescens) have been successfully used for the recovery of Cd(II) from near neutral solutions. The biomass was pre-treated with calcium chloride for stabilization of alginate-based compounds. SEM-EDAX analysis a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::48f4609f0311c25ee9b443a96fe85822
https://doi.org/10.1016/j.jcis.2011.01.108
https://doi.org/10.1016/j.jcis.2011.01.108
Publikováno v:
Journal of Hazardous Materials. 185:922-929
Chondracanthus chamissoi is an efficient biosorbent for Pb(II) and Cd(II). The sorption efficiency increases with pH and reaches an optimum around pH 4. Maximum sorption capacity reaches 1.37 mmol Pb g−1 and 0.76 mmol Cd g−1. The biosorbent has a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::775c5fe171732526c829cd1e81876e75
https://doi.org/10.1016/j.jhazmat.2010.09.108
https://doi.org/10.1016/j.jhazmat.2010.09.108
Publikováno v:
Advanced Materials Research. :585-588
Five species of algae (Lessonia nigrescens Bory, Prionitis decipiens, Grateloupia doryphora, Lessonia trabeculata and Macrocystis integrifolia) collected from Peruvian coast have been tested for mercury recovery from synthetic solutions. Preliminary
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d668b7a6a9ec8ed75d185c809c574464
https://doi.org/10.4028/www.scientific.net/amr.71-73.585
https://doi.org/10.4028/www.scientific.net/amr.71-73.585
Publikováno v:
Advanced Materials Research. :635-638
Mercury sorption on chitosan was investigated in batch and continuous systems. Chitosan sorption properties were determined through sorption isotherms. Langmuir and Freundlich equations were used for the modeling of isotherms at pH 5. In batch system
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f8b2a48bec1b1df08e14ee83bcd3fde
https://doi.org/10.4028/www.scientific.net/amr.20-21.635
https://doi.org/10.4028/www.scientific.net/amr.20-21.635
Publikováno v:
Hydrometallurgy. 71:191-200
Four derivatives of chitosan have been prepared by cross-linking and by grafting of sulfur compounds. Sorption isotherms were performed at different pHs in order to optimize the pH conditions at fixed chloride concentration. Sorption isotherms were c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::64d2dc0cfb397d476efb8aed0514717a
https://doi.org/10.1016/s0304-386x(03)00156-7
https://doi.org/10.1016/s0304-386x(03)00156-7
Autor:
Deysi Sánchez Sánchez, Víctor García Villegas, Andrea Yipmantin, Enrique Guzmán Lezama, Neptalí Ale Borja, Holger Maldonado García
Publikováno v:
Revista de la Sociedad Química del Perú, Volume: 80, Issue: 4, Pages: 298-307, Published: OCT 2014
Redalyc
Redalyc
Se ha estudiado la cinética de biosorción de cadmio a 20°C en pectina extraída de cáscaras de naranja obteniéndose una capacidad de adsorción en el equilibrio, q e, igual a 99,56 mg/g en el rango de pH de 4,5-5,5. El material péctico fue extr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::6304dc7281e5e424c43e0758a2971675
http://www.scielo.org.pe/scielo.php?script=sci_arttext&pid=S1810-634X2014000400009&lng=en&tlng=en
http://www.scielo.org.pe/scielo.php?script=sci_arttext&pid=S1810-634X2014000400009&lng=en&tlng=en
Publikováno v:
Applied biochemistry and biotechnology. 162(3)
Lessonia nigrescens and Lessonia trabeculata kelps have been tested for the sorption of mercury from aqueous solutions. A pretreatment (using CaCl(2)) allowed stabilizing the biomass that was very efficient for removing Hg(II) at pH 6-7. Sorption iso
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f699a97560bbd92dad9c0e285e474c9
https://pubmed.ncbi.nlm.nih.gov/20155446
https://pubmed.ncbi.nlm.nih.gov/20155446
Autor:
León Villegas, Abraham Vaisberg, Irma Fernández, Alfonso Zavaleta, Rosa Torres, Holger Maldonado, Gerald B. Hammond
Publikováno v:
Journal of ethnopharmacology. 55(3)
Folk medicine practitioners in Peru employ plant preparations as wound-healing agents on superficial and internal wounds (gastric ulcers). The results of a scientific evaluation of the wound-healing activity of nine plants found in the Amazon jungle
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1e01e30053801c66efc7445755eb6949
https://pubmed.ncbi.nlm.nih.gov/9080340
https://pubmed.ncbi.nlm.nih.gov/9080340