Cerium oxide (CeO2) particle reinforced Ni-B composite coating was produced by electroless method from a bath containing CeO2 particles. In the plating bath, nickel sulfate hexahydrate ((NiSO4.6H2O) used as source, dimethylamine borane ((CH3)2NHBH3) reducing agent, thiourea (CH4N2S) stabilizer and sodium acetate (CH3COONa) complexing agent. The aim of study is to investigate structural characte...

Nickel sulfide thin films were prepared using chemical bath deposition method on a glass substrate. sulphate and sodium thiosulphate used as starting chemicals. Ethylenediaminetetra-acetic acid (EDTA), was the complexing agent. In this study time only parameter optimized to get good quality film. Films characterized an UV M501 single beam scanning spectrophotometer from wavelength of 220- 560nm...

A microbore continuous-flow analyser was used to determine ammonia, nitrite, nitrate and phosphate in seawater. Ninety samples per hour were measured by optimizing the hydraulic conditions and using a cadmium coil for nitrate reduction. The analysis range was extended and the detection limit was reduced by using two analytical ranges with automatic range-changing. Interference from magnesium on...

The objective of this study was to determine the complexing capacity of four types of powdered commercial milks with copper(II) using square wave adsorptive stripping voltammetry. Two were types of cow milk adapted for babies under one year (A and B), one was soymilk (C) and the other was normal milk (D). Milk solutions were prepared following the instructions shown on the milk container, and t...

Complexing a drug may alter the rate and extent of drug absorption. The complex formation is very well applied in the administration of poorly water-soluble drugs. The drugs selected for the study are cyclooxygenase-2 inhibitors, are potent anti-infl ammatory drugs with very low water solubility. The water solubility of these drugs was enhanced by complexing with β-cyclodextrin. In vitro absorp...

Ethylenediaminetetraacetic (EDTA), cyclohexane-1,2-diaminetetraacetic (CDTA) and diethylenetriaminepentaacetic (DTPA) acids were investigated and compared as complexing agents for the speciation of chromium(VI/III), vanadium(V/IV) and iron(III/II) ions by capillary electrophoresis. The chromium(III) was selectively chelated with DTPA in order to impart a negative charge and similar mobility to ...