Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Mohamed A. Abu-Bakr"'
Publikováno v:
Annali di Chimica. 94:571-579
Spectrophotometric studies have been made to investigate the reaction of Nickel and Lead with 2-carboxy-2'-hydroxy-5'-sulfoformazyl-benzene (zincon) in 50%(v/v) ethanol-water at 25 degrees C and an ionic strength of 0.1 M NaClO4. A complete picture o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9221d00f3a4208d6241aa5d02f3f9bb9
https://doi.org/10.1002/adic.200490070
https://doi.org/10.1002/adic.200490070
Autor:
Mohamed S. Abu-Bakr, Elham Y. Hashem
Publikováno v:
Analytical Letters. 33:691-707
The complex equilibria of iron(III) with 2-hydroxy-3-pyridinol (HHP), and 2-mercapto-3-pyridinol (MHP) were studied spectrophotometrically in 40% (v/v) ethanol and an ionic strength of 0.1M (NaCIO4). The complexation reactions were demonstrated and c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d461bbd568d66ab0ac87bb2effec4f75
https://doi.org/10.1080/00032710008543084
https://doi.org/10.1080/00032710008543084
Autor:
Mohamed S. Abu-Bakr
Publikováno v:
Monatshefte f�r Chemie Chemical Monthly. 128:563-570
The complexation equilibria of Cu(II) with thiosalicylic acid (TSA) have been studied spectrophotometrically in aqueous ethanol (17.08 mol% ethanol) atI=0.1M (NaClO4) and 25±0.1°C. Analysis of the absorbancevs. pH graphs afforded the equilibria in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::774866ae5c6eb4142a479cab39e4e993
https://doi.org/10.1007/bf00807586
https://doi.org/10.1007/bf00807586
Publikováno v:
Monatshefte f�r Chemie Chemical Monthly. 125:1197-1205
The ternary complex formation of copper(II) with gallic acid (gal) and 2-hydroxy nicotinic acid (hyna), 2-mercapto nicotinic acid (mena), salicylic acid (sa) or thiosalicylic acid (tsa) as a second ligand in a 1:1:1 molar ratio has been investigated
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa3b562058366b2c951695ea8f430f8a
https://doi.org/10.1007/bf00813805
https://doi.org/10.1007/bf00813805
Publikováno v:
Journal of Solution Chemistry. 22:663-675
The visible absorption spectra of 4-(2-benzothiazolylazo)resorcinol (BTAR) and 4-(2-benzothiazolylazo)salicylic acid (BTAS) have been recorded in water-organic solvent mixtures in the pH range 0.5–12.0. The organic solvents used are methanol, ethan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::70a6e30aaf6a5558cc0db200451ad766
https://doi.org/10.1007/bf00646785
https://doi.org/10.1007/bf00646785
Autor:
Mohamed S. Abu-Bakr
Publikováno v:
Journal of chemical technology and biotechnology (Oxford, Oxfordshire : 1986). 58(3)
The complexation equilibria of iron(III) with 3-hydroxypicolinic acid (hypa) have been studied spectrophotometrically in 40% (v/v) ethanol-water medium at 25 degrees C and an ionic strength of 0.1 M NaClO4. The equilibria occurring in solution were e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eca4d5cae0564eafd848044798c592d7
https://pubmed.ncbi.nlm.nih.gov/7764310
https://pubmed.ncbi.nlm.nih.gov/7764310
Publikováno v:
The Analyst. 117:1003
The acid–base equilibria of 2-hydroxynicotinic acid (hyna), 2-mercaptonicotinic acid (mena), 3-hydroxypicolinic acid (hypa) and pyridine-2,3-dicarboxylic acid (quinolinic acid, quina) have been studied spectrophotometrically in a water–ethanol me
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e52489b113f4d02f694f099dbbcf99c4
https://doi.org/10.1039/an9921701003
https://doi.org/10.1039/an9921701003