Zobrazeno 1 - 10 of 105 pro vyhledávání: '"I. M. Issa"'
2
Impact of Bio, Organic and Inorganic Fertilization on Growth and Chemical Constituents of Wheat Plant
Autor: M. M. El-Shazly, T. M. EL-Zehery, M. W. M. El-Agrodi, Hasnaa L. I. M. Issa
Publikováno v: Journal of Soil Sciences and Agricultural Engineering. 11:265-273
Two field experiments were held in a private farm at El-Mansoura District, Dakahlia Governorate, Egypt during the 2015/2016 and 2016/2017 seasons to study the effect of bio-, organic and mineral fertilizers on the growth and chemical composition of w
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8d137c71eea7b614c1bd7965577db51b
https://doi.org/10.21608/jssae.2020.109433
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3
EFFECT OF CHICKEN MANURE AND GYPSUM ON SUGAR BEET (Beta vulgaris, VAR. SACCHARIFORA, L.) UNDER SALINE CONDITION
Autor: Hasnaa L. I. M. Issa, M. W. M. El-Agrodi, T. M. EL-Zehery
Publikováno v: Journal of Soil Sciences and Agricultural Engineering. 2:701-716
A plastic bags trial was conducted at the Agric. Experimental Station of Mansoura University using sandy soil to study the effect of chicken manure levels (0, 5, 10, 15 and 20 tons/fed) and gypsum rates (0, 2.5, 5, 7.5 and 10 tons/fed ) on nutrients
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::03fef4668576648aa780daae1b3fc6a2
https://doi.org/10.21608/jssae.2011.55652
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4
Studies in polarography: Part II reduction of telluric acid at the dropping mercury electrode
Autor: R. M. Issa, S. E. Khalafalla, I. M. Issa
Publikováno v: Recueil des Travaux Chimiques des Pays-Bas. 75:1105-1114
The reduction of telluric acid at the dropping mercury electrode is studied in buffer solutions of pH 1-12, in 0.1 M KCl, and in 0.01-1 M NaOH. It is found that telluric acid is reduced under all conditions to elementary tellurium. The relation betwe
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8521c56ee5300d51fb1c1e27b2617f30
https://doi.org/10.1002/recl.19560751002
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5
A new method for the macro- and microdetermination of tri- and tetrathionate
Autor: I. M. Issa, K. A. Idriss, M. R. Mahmoud
Publikováno v: Canadian Journal of Chemistry. 55:3887-3893
A rapid and precise method is described for the determination of tri- and tetrathionate. It is based on oxidation of S3O62− or S4O62− with KMnO4 in sulphuric acid medium in the presence of fluoride, required for preventing the formation of insolu
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::19818db140c8fbda190864dffab70b62
https://doi.org/10.1139/v77-550
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6
Electrochemical Behavior of 80% Sn-Cu Alloy in Some Carboxylic Acids and Buffer Solutions
Autor: M. M. Seleem, I. M. Issa, M. S. Abdelaal
Publikováno v: CORROSION. 32:30-34
Potential-pH curves for electrodeposited 80% Sn-Cu alloy in aerated buffer solutions of pH values ranging from 0.9 to 11.3 show linearity within the range of pH 4.4 to 11.3. The electrode behavior is governed by the Sn(OH)4/Sn(OH)2 system. For the de
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::335ad6321c07b9a48b162d9612543333
https://doi.org/10.5006/0010-9312-32.1.30
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9
The use of the rotating Pt-electrode for microdetermination of hydrazine with potassium permanganate in fluoride medium
Autor: A. M. Hammam, I. M. Issa
Publikováno v: Mikrochimica Acta. 65:573-579
An amperometric method is described for the microdetermination of hydrazine using the rotating Pt-electrode vs S. C. E. and zero applied e. m. f. It is based on oxidation of N2H4 with KMnO4 under the following conditions: Acidity 0.01–0.6N H2SO4; N
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::02eb2093862c0fc9473e9028873db9fd
https://doi.org/10.1007/bf01218233
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10
Indium(III) complexes with some salicylidene aromaticSchiff bases
Autor: S. A. El-Gyar, I. M. Issa, Mohamed R. Mahmoud
Publikováno v: Monatshefte f�r Chemie. 111:431-438
In(III) complexes with salicylidene aromaticSchiff bases have been prepared. The nature of the complexes has been studied by microanalysis of the solid complexes, conductometric titration, uv and ir spectrophotometric measurements. The complexes are
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5ebba1710767e85391a1458e40d226fe
https://doi.org/10.1007/bf00903239
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