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26
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Khalifa H, Ismail I, Zaky M. Determination of gold(III) alone or in some mixtures and alloys by potentiometric titration of iodide. Microchem J 1984. [DOI: 10.1016/0026-265x(84)90011-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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27
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Khalifa H, Zayed M, Ali A. Redox properties of cobalt(III) mixed ligand complexes. II. Redox titration of some organic and inorganic substances potentiometrically. Microchem J 1984. [DOI: 10.1016/0026-265x(84)90010-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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28
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Ismail I, Khalifa H, Zaky M. Applications involving oxidation with ethanolic iodine. Rapid potentiometric method for some reductants. Microchem J 1984. [DOI: 10.1016/0026-265x(84)90014-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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29
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Khalifa H, Ismail I, Zaky M. Application of arsenite reduction to the potentiometric determination of gold and to the analysis of mixtures and alloys. Microchem J 1984. [DOI: 10.1016/0026-265x(84)90120-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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30
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Khalifa H, Fouad M, Awad Y, Georgy M. Application of Fast Grey RA to the photometric determination of copper in bones of the Egyptian camel (Camelius dromedarius). Microchem J 1983. [DOI: 10.1016/0026-265x(83)90016-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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31
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32
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Khalifa H, Barsoum B, El-Gazzar E. Substituent effects on the stability of copper(II) chelates with some Neville Winter's azo dyes. Microchem J 1980. [DOI: 10.1016/0026-265x(80)90286-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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33
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Khalifa H, Abdel-Ghani N, Rizk M. The use of iodate and periodate with iodide in the potentiometric titration of arsenite, sulfide, and sulfite with mercury (II). Microchem J 1979. [DOI: 10.1016/0026-265x(79)90008-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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34
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Khalifa H, Ghani NTA, Rizk MS. Determination of osmium(VIII) alone or in binary mixtures with some group VIII cations by potentiometric titration of iodide. Analyst 1979. [DOI: 10.1039/an9790400576] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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35
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36
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Khalifa H, Khater M, Issa Y, Badawy S. Studies on halogen derivatives of phenylazochromotropic acid. Microchem J 1977. [DOI: 10.1016/0026-265x(77)90024-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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37
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Khalifa H, Issa YM, Abdel-Ghani NT. Spectrophotometric microdetermination of uranium with m- and p-carboxyphenylazo-chromotropic acid. Mikrochim Acta 1976. [DOI: 10.1007/bf01218276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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38
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Ismail I, Ghonaim A, Khalifa H. Rapid potentiometric methods for vanadium and for analysis of ferrovanadium and some vanadium steels. Microchem J 1976. [DOI: 10.1016/0026-265x(76)90117-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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39
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Khalifa H, Issa RM, Issa FM. Studies on Azo-Compounds. Z PHYS CHEM 1976. [DOI: 10.1515/zpch-1976-0129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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40
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41
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Khalifa H, Issa YM. Spectrophotometric microdetermination of ruthenium with Arsenazo I. ACTA ACUST UNITED AC 1975. [DOI: 10.1007/bf00527990] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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42
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Khalifa H, Ghonaim AK, Ismail IA. Note on the analysis of chromite and chrome magnesite by means of potentiometric EDTA titrations. ACTA ACUST UNITED AC 1974. [DOI: 10.1007/bf00424029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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43
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Khalifa H, Foad M, Awad Y, Georgy M. Application of Fast Grey RA to the spectrophotometric determination of copper in soft tissues of Egyptian camels. Microchem J 1973. [DOI: 10.1016/0026-265x(73)90038-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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44
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45
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46
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Khalifa H, Khater MM, Zayed MA. Indirect potentiometric determination of bismuth and orthophosphate. Anal Bioanal Chem 1973. [DOI: 10.1007/bf00423770] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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47
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Khalifa H, Foad M, Awad Y, Georgy M. Application of fast grey RA to the spectrophotometric determination of copper in serum of Egyptian camels. Microchem J 1972. [DOI: 10.1016/0026-265x(72)90063-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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48
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Kamel AH, Sawires Z, Khalifa H, Saleh SA, Abdallah AM. The thermal decomposition of ferrous sulphate heptahydrate. I. Dehydration and oxidation. ACTA ACUST UNITED AC 1972. [DOI: 10.1002/jctb.5020220505] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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49
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50
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