UCC IR Home
→
UNIVERSITY PUBLICATIONS
→
RESEARCH ARTICLES AND BOOKS
→
COLLEGE OF AGRICULTURAL & NATURAL SCIENCES
→
SCHOOL OF PHYSICAL SCIENCE
→
Department of Chemistry
→
Browsing Department of Chemistry by Issue Date

Browsing Department of Chemistry by Issue Date

Now showing items 1-20 of 279

Use of a flow-injection system in the evaluation of the characteristic behavior of neutral carriers in lithium ion-selective electrodes

Xie, Robert Y.; Gadzekpo, Victor P. Y.; Kadry, Azza M.; Yehia, Ibrahim A.; Ruzicka, Jaromir; Gary, D. Christian (University of Cape Coast, 1985)

A flow-injection system based on microconduits is used to investigate electrode characteristics such as selectivity, detection limit, and response and equilibrium times of the new ionophore, N,N,N’,N’-tetraisobutyl-5,5-d ...
Coated-wire Lithium lon-selective Electrodes Based on Polyal koxylate Complexes

Gadzekpo, Victor P. Y.; Moody, G. J.; Thomas, J. D. R. (University of Cape Coast, 1985-01-01)

Barium and lithium adducts of polyalkoxylates have been investigated as sensors in lithium ion-selective electrodes using a microconduit flow injection analysis system. Dioctyl phenylphosphonate (DOPP) and dioctyl ...
Problems in the Application of Ion-selective Electrodes to Serum Lithium Analysis

Gadzekpo, V. P. Y.; Moody, G. J.; Thomas, J. D. R (University of Cape Coast, 1986)

Three types of lithium ion-selective electrode (ISE) have been studied in microconduit flow injection analysis for their response to lithium ions in serum samples containing between 0.21 and 2.00 mM lithium. The effects ...
Solvent dependence of photochemical electron-transfer rates in a covalently linked porphyrin-quinone molecule

Arches, Mary D.; Gadzekpo, Victor P. Y.; Bolton, James R.; Schmidt, John A.; Weedon, Alan C. (University of Cape Coast, 1986)

The solvent dependence of intramolecular photochemical electron-transfer rate constants in a covalently linked porphyrin-amide-quinone molecule (PAQ) has been found in nine solvents to correlate reasonably well with the ...
Lithium lon-selective electrodes containing topo: determination of serum lithium by flow injection analysis

Xie, Robert Y.; Christian, Gary D. (University of Cape Coast, 1987)

Trioctylphosphine oxide (TOPO) acts as a neutral lithium carrier in lithium ion-selective electrode membranes. When TOPO was used with 1% potassium tetrakis(pchloropheny1) borate in NPOE – PVC membranes, the electrodes ...
Intramolecular photochemical electron transfer

Schmidt, John A.; Jing-Yao, Liu; Bolton, James R.; Archer, Mary D.; Gadzekpo, Victor P. Y. (University of Cape Coast, 1989)

The compound PAQ, which consists of a tetra-arylporphine attached to methyl-p-benzoquinone via a single amide linkage, exhibits light-induced intramolecular electron transfer from the porphyrin excited-singlet state to the ...
Effect of cupric ion activity on calcium accumulation in juvenile flounder (paralichthys spp.)

Dodoo, David K.; Engel, David W.; Sunda, William G. (University of Cape Coast, 1990)

To test the effects of cupric ion activity on calcium accumulation, juvenile .flounder (Paralichthys spp.) were exposed to ive different activities of ionic copper for 14 days. The negative log of the cupric ion activity ...
Studies of Spectrophotometric Reagents in Some Transition Metal and Lead Ion-selective Electrodes

Quagraine, Emmanuel K.; Gadzekpo, Victor P. Y. (University of Cape Coast, 1992)

The general performance of ten spectrophotometric reagents, namely salicylaldoxime, 22'-dipyridyl, dimedone, 8-hydroxyquinoline, dithiooxamide, cupferron, nioxime, 4-methylnioxime, 1,lO phenanthroline hydrate and a-benzoin ...
Simultaneous determination of lithium, sodium and potassium in blood serum by flame photometric flow-injection analysis

Doku, George Narh; Gadzekpo, Victor P.Y. (University of Cape Coast, 1995)

A simultaneous flow-injection analysis (FIA) manifold that could analyse three ions from a single injection was designed, constructed, calibrated and used successfully to analyse Li+. Na+ and K+. This FIA method was 10 ...
Spectrophotometric determination of lithium with Quinizarin in drugs and serum

Gracia, Laura Gfimiz; Rodriguez, Luis Cuadros; Ceba, Manuel Roman (University of Cape Coast, 1995)

A very sensitive analytical method is proposed for the determination of lithium based on the reaction of Li + ion wiht 1,4-dihydroxyanthraquinone (Quinizarin). In dimethylsulfoxide medium (90%) and in the presence of sodium ...
Trace metals in fish and polluted areas in the Ghanaian continental shelf crustaceans - identifying heavier

Dodoo, David k.; Tabbicca, Soraya A.; Aryee-Sackey, Peter (University of Cape Coast, 1997)

The concentrations of four trace metals, namely copper, lead, cadmium and manganese, were determined in six fish species and three crustaceans collected from five sites spanning over 70% of the Ghanaian coastline. Copper ...
Modeling and simulation of ieee 802.11 wireless-lan and bluetooth piconet range interference

Bobbie, Patrick O.; Yussiff, Abdul-Lateef (University of Cape Coast, 1997)

The proximity of wireless devices with one another often results in interference in the unlicensed 2.4 GHz ISM bandwidth. Interference has been recognized as a major problem to wireless network performance and improvement. ...
Determination of Selectivity Coefficients of Ion Electrodes by Continuous Variation Method

Hiiro, Kazuo; Wakida, Shin-ichi; Yamane, Masataka (University of Cape Coast, 1998)

A new method for the determination of the selectivity coefficient of an ion selective electrode is proposed. In the proposed method, a series of mixed solutions of the primary ion i and interfering ion j is prepared in ...
Voltammetric detection of the polycation protamine by the use of electrodes modified with self-assembled monolayers of thioctic acid

Gadzekpo, Victor P. Y.; Xiao, Kang Ping; Aoki, Hiroshi; Buhlmann, Philippe; Umezawa, Yoshio (University of Cape Coast, 1999)

The detection of protamine, a polycation, by use of electrodes modified with self-assembled monolayers of thioctic acid is reported. These sensors can detect protamine concentrations as low as 0.5µg/mL when [Ru(NH3)6]3+ ...
A novel inhibitor of human telomerase derived from 10h-indolo[3,2-b]quinoline

Caprio, Vittorio; Guyen, Berengere; Opoku-Boahen, Yaw; Mann, John; Gowan, Sharon M.; Kelland, Lloyd M.; Readd, Martin A.; Neidle, Stephen (University of Cape Coast, 2000)

The bis-dimethylaminoethyl derivative of quindoline (10H-indolo[3,2-b]quinoline), an alkaloid from the West African shrub Cryptolepis sanguinolenta, has been synthesised. This has been shown to have modest cytotoxicity, ...
Persistence and fate of soil applied c- lindane in a maize ecosystem

Yeboah, P.O.; Montford, K G.; Apoh, W.; Dodoo, S. (University of Cape Coast, 2000)

C-lindane applied to soil surface in a maize ecosystem (one month after planting) was taken up by the plant. Within the first 25 days of treatment, 14C-lindane or its metabolites were found within the entire plant with the ...
Introduction to HVDC technology for reliable electrical power systems

Setreus, Johan; Bertling, Lina (University of Cape Coast, 2000)

The transmission system is becoming ever more complex. Furthermore, demand for reliable supply of electricity is growing, increasing the need for a higher level of system reliability. A solution might be to incorporate ...
Physico-Chemical and microbial water quality assessment of Densu River of Ghana

Karikari, A.Y.; Ansa-Asare, O. D. (University of Cape Coast, 2000)

Water quality assessment conducted in the Densu basin of Ghana between July 2003 and March 2004 identified human, animal and agricultural activities as the main sources of pollution. The pH of the water was neutral (pH ...
Development of an ion-channel sensor for heparin detection

Gadzekpo, Victor P.Y.; Bühlmann, Philippe; Xiao, Kang Ping; Aoki, Hiroshi; Umezawa, Yoshio (University of Cape Coast, 2000)

The ion-channel sensor technique was used to determine heparin concentrations in artifcial and horse serum with cyclic voltammetry. The sensor is based on self-assembled monolayers (SAMs) of thioctic acid on which rotamine ...
Physico-Chemical and microbial water quality assessment of Densu River of Ghana

Karikari, A. Y.; Ansa-Asare, O. D. (University of Cape Coast, 2000)

Water quality assessment conducted in the Densu basin of Ghana between July 2003 and March 2004 identified human, animal and agricultural activities as the main sources of pollution. The pH of the water was neutral (pH ...

Now showing items 1-20 of 279

Search UCC IR

Advanced Search

Browse

All of UCC IR
This Collection
- By Issue Date
- Authors
- Titles
- Subjects

Browsing Department of Chemistry by Issue Date

Browsing Department of Chemistry by Issue Date

Search UCC IR

Browse

All of UCC IR

This Collection

My Account