ANALYSIS OF TRACE ELEMENTS IN HARMATTAN DUST
ANALYSIS OF TRACE ELEMENTS IN HARMATTAN DUST
No Thumbnail Available
Date
1981-03
Authors
JIMOH, Wahab Larin Olagoke
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
The concentrations of twelve trace and major elements
were determined in dry and wet collections of Harmattan dust
in Kano and Zaria Station.
Various methods of extraction were tried, however,
hydrofluoric acid - hydrochloric acid - nitric acid
digestion; a modified hydrofluoric acid - hydrochloric acid
digestion; and Hydrofluoric acid - Sodium Carbonate fusion
hydrochloric acid digestion were found to be the most
suitable.
Determination of cobalt, chromium, copper, nickel,
magnesium, manganese, Sodium, potassium, zinc, calcium Bead and
iron in Harmattan dust samples were carried out by atomic
absorption spectroscopy.
Two parameters were calculated: "enrichment factor"
(Ef) which is the ratio of anelement to Fe in the media
analysed relative to the ration of the same elements in
soil (Crust), and the wet and drt deposition (WD and DD
respectively) rates of the Harmattan dust.
Attempts were made to charaterise the minerals in the
Harmattan dust using X - ray diffraction technique, to
determine the particle size ranges using sedimentation
method, and to find the percentage of benzene soluble
organic compounds in the sample
Description
A THESIS PRESENTED IN PARTIAL FULFILLMENT FOR
THE DEGREE OF MASTER OF SCIENCE
(ANALYTICAL CHEMISTRY) OF AHMADU BELLO UNIVERSITY
BY
WAHAB LARIN OLAGOKE JIMOH
B.Sc . (Hon) CHEMESTRY (IBADAN)
DEPARTMENT OF CHEMISTRY
AHMADU BELLO UNIVERSITY
ZARIA, NIGERIA
MARCH, 1981
Keywords
ANALYSIS,, TRACE ELEMENTS,