FULL PAPERS

Environmental Chemistry

A study of sorption of cadmium by goethite in aqueous solution

N. Salami and F.A. Adekola 

1

Abstract

Geochemistry

Diagenesis and mass transfer between Permo-Triassic sandstones and interbedded mudstones, Ulster Basin

Wolela Ahmed 

9

Abstract

Effects of heat-flow and hydrothermal fluids from volcanic intrusions on authigenic mineralization in sandstone formations

Wolela Ahmed 

37

Abstract

Inorganic Chemistry

Synthesis and characterization of some metal complexes of a Schiff base derived from ninhydrin and a ,L-alanine

Mehabaw Getahun Derebe, V.J.T. Raju and Negussie Retta 

53

Abstract

Infrared and Raman spectroscopic study of ion pairing of strontium(II) and barium(II) by thiocyanates in liquid ammonia

Dicky D.K. Chingakule, Peter Gans and J. Bernard Gill 

65

Abstract

IR and UV-visible spectra of iron(II) phthalocyanine complexes with phosphine or phosphite

A. Zanguina, M. Bayo-Bangoura , K. Bayo And G.V. Ouedraogo 

73

Abstract

Organic Chemistry

Dammarane triterpenes from the resins of Commiphora confusa

Aman Dekebo, Ermias Dagne, Pat Curry, Odd R. Gautun and Arne J. Aasen 

81

Abstract

Triterpenes from the resin of Boswellia neglecta

Aman Dekebo, Ermias Dagne, Odd R. Gautun and Arne J. Aasen 

87

Abstract

Physical Chemistry

Factors affecting particle retention in thermal field-flow fractionation

Paul M. Shiundu, Stephen M. Munguti and Ben M. Wamalwa 

91

Preparation, characterisation and application of polyamine-silica hybrids in the epoxidation of a ,b -unsaturated olefins

J.E.G. Mdoe 

103

Abstract