Adsorptive Cathodic Stripping Voltammetric Determination of
Hexavalent Chromium

Research Abstract
A sensitive and selective voltammetric method of analysis is developed for determination of trace amounts of Cr(V1) ions in neutral nitrate phosphate media This method is based on controlled adsorptive preconcentration of chromium species at Hanging Mercury Drop Electrode (HMDE). The adsorptive stripping response was evaluated with respect to preconcentration time and potential and dependence on composition of supporting electrolyte As low as SxIO-’ mol L” (0 25 pg/L) and lx109 mol L’ (0.52 yg/L) Cr(V1) can be detected using Cathodic Linear Sweep Stripping Voltammetry (CLSSV) and Differential Pulse Cathodic Stripping Voltammetry (DPCSV), respectively.
Research Authors
Mahmoud A. Ghandour, Salah A. El-Shatoury, Azza M. A.
Aly, and Seddique M. Ahmed
Research Department
Department of chemistry
Research Journal
J. Analytical Letters,
Research Member
Mahmoud Ali Ahmed Ghandoor
Research Pages
15
Research Publisher
NULL
Research Rank
1
Research Vol
29(8) (1996) 1431- 1445.
Research Website
NULL
Research Year
1996

Adsorptive Cathodic Stripping Voltammetric Determination of
Hexavalent Chromium

Research Abstract
A sensitive and selective voltammetric method of analysis is developed for determination of trace amounts of Cr(V1) ions in neutral nitrate phosphate media This method is based on controlled adsorptive preconcentration of chromium species at Hanging Mercury Drop Electrode (HMDE). The adsorptive stripping response was evaluated with respect to preconcentration time and potential and dependence on composition of supporting electrolyte As low as SxIO-’ mol L” (0 25 pg/L) and lx109 mol L’ (0.52 yg/L) Cr(V1) can be detected using Cathodic Linear Sweep Stripping Voltammetry (CLSSV) and Differential Pulse Cathodic Stripping Voltammetry (DPCSV), respectively.
Research Authors
Mahmoud A. Ghandour, Salah A. El-Shatoury, Azza M. A.
Aly, and Seddique M. Ahmed
Research Department
Department of chemistry
Research Journal
J. Analytical Letters,
Research Member
Azza Mohamed Mohamed Ali
Research Pages
15
Research Publisher
NULL
Research Rank
1
Research Vol
29(8) (1996) 1431- 1445.
Research Website
NULL
Research Year
1996

Adsorptive Cathodic Stripping Voltammetric Determination of
Hexavalent Chromium

Research Abstract
A sensitive and selective voltammetric method of analysis is developed for determination of trace amounts of Cr(V1) ions in neutral nitrate phosphate media This method is based on controlled adsorptive preconcentration of chromium species at Hanging Mercury Drop Electrode (HMDE). The adsorptive stripping response was evaluated with respect to preconcentration time and potential and dependence on composition of supporting electrolyte As low as SxIO-’ mol L” (0 25 pg/L) and lx109 mol L’ (0.52 yg/L) Cr(V1) can be detected using Cathodic Linear Sweep Stripping Voltammetry (CLSSV) and Differential Pulse Cathodic Stripping Voltammetry (DPCSV), respectively.
Research Authors
Mahmoud A. Ghandour, Salah A. El-Shatoury, Azza M. A.
Aly, and Seddique M. Ahmed
Research Department
Department of chemistry
Research Journal
J. Analytical Letters,
Research Member
Seddique Mahmoud Ahmed Farag
Research Pages
15
Research Publisher
NULL
Research Rank
1
Research Vol
29(8) (1996) 1431- 1445.
Research Website
NULL
Research Year
1996

Macro-Micromorphological and Physio-Chemical Characteristics of Some Alluvial Soils Irrigated with Different Water Resources.

Research Authors
Farragallah, M. A. and Essa, M. A. (2005)
Research Department
Department of Geology
Research Journal
Ass. Univ. Bull. Environ. Res.
Research Member
Mahmoud Ahmed Issa Salem
Research Pages
pp. 51-65
Research Rank
2
Research Vol
V.8, No.1
Research Year
2005

Sand and clay mineralogy of some alluvial soils with relation to soil origin, uniformity and heavy metals content, Assiut, Egypt.

Research Authors
Farragallah, M. A. and Essa, M. A. (2004)
Research Department
Department of Geology
Research Journal
J. Agric. Sci., Mansoura Univ., Egypt
Research Member
Mahmoud Ahmed Issa Salem
Research Pages
pp.7575-7592.
Research Rank
2
Research Vol
V.29, No.12
Research Year
2004

Upper Dakhla Formation (Beida shale member) at G, Duwi, Red Sea, Egypt: Mineralogical and geochemical aspects.

Research Authors
Soliman, M. F. and Essa, M. A (2003)
Research Department
Department of Geology
Research Journal
The 3rd Inter. Confer. on the geology of Africa,Assiut, Egypt.
Research Member
Mahmoud Ahmed Issa Salem
Research Pages
pp.283-305
Research Rank
3
Research Vol
V. 2
Research Year
2003

Upper Dakhla Formation (Beida shale member) at G, Duwi, Red Sea, Egypt: Mineralogical and geochemical aspects.

Research Authors
Soliman, M. F. and Essa, M. A (2003)
Research Department
Department of Geology
Research Journal
The 3rd Inter. Confer. on the geology of Africa,Assiut, Egypt.
Research Member
Mamdouh Farag Soliman Farag
Research Pages
pp.283-305
Research Rank
3
Research Vol
V. 2
Research Year
2003
Subscribe to