CONTENTS

FULL PAPERS

Analytical Chemistry

Electrochemical behaviour of gold at the carbon paste electrode: application to 

the gold ore analysis

M. Diaw, D. Lemordant, O. Sock and O. Sarr 

1

Abstract 

Application of copper(II) catalysis of the oxidation of 2-hydrazino pyridine 

by hydrogen peroxide: a kinetic method of analysis

F.A. Sunday Fabiyi*, George O. Adediran and M. Adegboyega Olatunji 

9

Abstract

Inorganic Chemistry

Synthesis and structural investigations of dioxouranium(VI) coordination

compounds of 4-[N-(p-dimethylaminobenzalidene)amino]antipyrine

thiosemicarbazone

Ram K. Agarwal* and Himanshu Agarwal 

15

Abstract 

The phosphine-exchange reaction with an equimolar mixture of 

[(h5-C5H5)Fe(CO)2PPh3]+[PF6]- and P(2-C4H3O)3 (C4H3O = furanyl)

O.G. Adeyemi* and L.-K.Liu 

23

Abstract

Studies of transition metal complexes of herbicidal compounds. I: Transition 

metal complexes of 2-methylthio-4-azido-6-isopropylamino-s-triazine (aziprotryn)

Worku Dinku, Negussie Megersa, V.J.T. Raju, Theodros Solomon, 

Jan Åke Jönsson and Negussie Retta* 

29

Abstract

Organic Chemistry

Volatile constituents of Kyllinga erecta S

Yaya Mahmout*, Jean Marie Bessiere, and René Dolmazon 

39

Abstract

Synthesis and fungicidal activity of substituted dibenzyl trisulfides

E.T. Ayodele, A.A. Olajire*, E.A. Oluyemi and K.O. Ajanaku 

47

Abstract

Degradative pro-vitamin A active compounds of all-trans-b-carotene in 

dehydrated dark green leafy vegetables

Hudson Nyabuga Nyambaka* and Janice Ryley 

57

Abstract

SHORT COMMUNICATIONS

L-Ascorbic acid losses in Kenyan vegetables during cooking as determined 

by high performance liquid chromatography

N.M.N. Wekesa, S.C. Chhabra*and H.M. Thairu 

65

Abstract

Daytime atmospheric sulphur dioxide concentrations in Ibadan city, Nigeria

P.C. Onianwa*, S.O. Fakayode and B.O. Agboola 

71

Abstract

Synthesis and spectral studies of some lanthanide(III) complexes with 

4-[N-(p-dimethylaminobenzalidene)amino]antipyrine semicarbazone

Ram K. Agarwal*, Himanshu Agarwal, Neetu Goel and S.K. Sindhu 

79

Abstract

Manuscript requirements 

85