Dr G.O. Adewuyi-Curriculum Vitae

1. NAME: Gregory Olufemi Adewuyi

DATE OF BIRTH: 17 November, 1959

DEPARTMENT: Chemistry

FACULTY: Science

11. UNIVERSITY EDUCATION (with dates):

(a) University of Ibadan, Ibadan B.Sc. Programme 1979-1982

(b) University of Ibadan, Ibadan. M.Sc, Programme 1983-1984

(d) University of Ibadan, Ibadan. Ph.D. Programme 1994-1997

1V. Academic Qualifications (With Dates and Granting Bodies):

(a) B.Sc.(Hons), Chemistry University of Ibadan Oct. 1982

(b) M.Sc. (Analytical Chemistry), University of Ibadan Oct. 1984

(d) Ph.D. (Analytical Chemistry), University of Ibadan Oct. 1997

V. PROFESSIONAL QUALIFICATIONS AND DIPLOMAS: Nil

VI. SCHOLARSHIPS, FELLOWSHIPS AND PRIZES (with dates)

in respect of undergraduate and postgraduate work done: Nil

VII. HONOURS, DISTINCTIONS AND MEMBERSHIP OF LEARNED SOCIETIES:

(a) Invited as University Scholar to University of Athens Department

Of Chemistry Laboratory of Analytical Chemistry,Panepistimiopolis,

Athens 15771 (2008)

(b) Member, Chemical Society of Nigeria (MCSN) No.CSN/OGS/005

ICC No.1/3/07/0653

VIII. DETAILS OF TEACHING AND ADMINISTRATIVE EXPEREINCE AT UNIVERSITY LEVEL:

(a) Number of years of teaching at the University level: 20 years

(i) Lecturer 11(1995-1998), Olabisi Onabanjo University,(OOU.), Ago-Iwoye

(ii) Lecturer 1 (1998-2001), Olabisi Onabanjo University,Ago-Iwoye

(iii) Senior Lecturer (2001-2006), Olabisi Onabanjo University,Ago-Iwoye

(iv) Senior Lecturer (November,2006-2010), University of Ibadan,Ibadan

(v) Reader (October, 2010 to date) Department of Chemistry,University of Ibadan,Ibadan.

The following summarizes the various courses which I have taught

(b) Lectures, Practical and Supervision of B.Sc.and M.Sc.Projects at OOU,Ago-Iwoye

(i) 1995/96 CHM 202-Structure and Bonding (alone)

CHM 242-Analytical Chemistry 1 (with 1 other)

CHM 303-Organometallic Chemistry (with 1 other)

(ii) 1996/97 CHM 102-General Chemistry 1 (with 3 others)

CHM 104-Experimental Chemistry (with 2 others)

CHM 202-Structure and Bonding (alone)

CHM 303-Organometallic Chemistry (with 1 other)

CHM 342-Instrumental Method of Analysis (alone)

CHM 312-Applied Spectroscopy (with 1 other)

(iii) 1997/98 CHM 101-General Chemistry 1 (with 3 others)

CHM 201-Inorganic Chemistry 1 (with 1 other)

CHM 202-Structure and Bonding (alone)

CHM 342-Instrumental Method of Analysis (alone)

(iv) 1998/99 CHM 202-Structure and Bonding (alone)

CHM 201-Inorganic Chemistry 1 (with 1 other)

CHM 342-Instrumental Method of Analysis (alone)

(v) 1999/2000 CHM 202-Structure and Bonding (alone)

CHM 242-Analytical Chemistry 1 (alone)

CHM 342-Instumental Method of Analysis (alone)

CHM 211-Organic Chemistry 1 (with 2 others)

(vi) 2000/2001 CHM 202-Structure and Bonding (alone)

CHM 242-Analytical Chemistry 1 (alone)

CHM 323-Atomic and Molecular Structure (with 2 others)

CHM 232-Chemical Raw Materials (with 2 others)

(vii) 2001/2002 CHM 101-General Chemistry1 (with 3 others)

CHM 201-Inorganic Chemistry 1 (with 2 others)

CHM342-Instrumental Method of Analysis (alone)

(viii) 2003/2004 CHM 232-Chemical Raw Materials (with 2 others)

CHM 442-Analytical Chemistry 11 (with 1 other)

CHM 404-Radio and Nuclear Chemistry (with 1 other)

(ix) 2004/2005 CHM 101-General Chemistry1 (with 3 others)

CHM 441-Environmental Chemistry (with 1 other)

CHM 404-Radio and Nuclear Chemistry (with 1 other)

(x) 2005/2006 CHM101-General Chemistry 1 (with 3 other)

CHM 301-Inorganic Chemistry 11 (with 2 other)

CHM442-Analytical Chem 11 (with 1 other)

CHM 499-Research Project

Postgraduate Courses:

CHM 844-Quantitative Spectroscopic

Methods of Analysis (with 1 other)

CHM 841-Separation Methods (alone)

CHM 840-Classical Methods of Analysis and Chemic (with 2 others)

CHM 852-Advanced Laboratory Courses (with 2 others)

CHM 843-Analytical Environmental Toxicology (with 1 other)

CHM 896-Research Project Supervision

(1) Co-ordinator Department of Chemical Sciences Department 1996-1998

(2) Member of University Senate 1996-1998

(3) Member,Faculty Board of Science 1996-2006

(4) Member,Faculty Board of Studies 1996-2006

(5) Member,Faculty of Science Advisory Council 1997-1999

(6) Chairman,Department of Chemical Sciences Board of Examiners 1996-99

(7) Chairman,Department of Chemical SciencesAppraisal&Promotion

1996- 99

(8) Member,Faculty of Science Board of Examiners 1996-2006

(9) Member,Academic Review Committee Chemical Sciences 1996-2006

(10) Appointed as Resource Personnel to look into problems facing

International School,OOU. 1998

(11) Member, Faculty of Science Consultancy&Enterprising Comm.

2001- 2006

(12) Congregation Representative on Academic Ceremonial Comm. 2005

(13) Co-ordinator,Accreditation Programme for Deparment of Chemical

Science. 2005

(14) Dean of Science Representative at Faculty Board of Pharmacy 2005

(d) Lectures,Practicals and Supervision of Research Projects at University of

Ibadan

(I) Lectures;

Undergraduate courses:

CHE 318 - Instrumental methods of analysis

Postgraduate Courses :

CHE 701 - Research Methodology (with 1 other)

CHE 705 - Separation methods of Analysis (with 1 other)

CHE 710 - Miscellaneous Techniques (alone)

CHE 711 - Electroanalytical Methods (with 1 other)

CHE 712 - Food and Drug Analysis (with 1 other)

CHE 713 - Water Analysis (with 1 other)

CHE 717 - Analysis of miscellaneous materials (with 1 other)

CHE 782 - Waste management (alone)

CHE 783 - Environmental Assessment Techniques (with 1 other)

CHE 784 - Chemical Environ. Pollut. Studies (with 1other)

CHE 786 - Environmental Analysis (with 1 other)

CHE 788 - Seminars

CHE 789 - Industrial Attachment

CHE 796 - Research Project

(II) Practical:

CHE 417 - 400L Practical, Advanced Analytical Chem. (with 7 others)

CHE706 – 700L Analytical Chemistry Practicals (with 7 0thers)

(III) RESEARCH SUPERVISION:

I have supervised and participated in supervising to date

(i) Fourteen (14) B.Sc.Projects

(ii) Forty-two ( 42) M.Sc.

(iii) One (01) Ph.D.

(iv) Currently supervising six (06) Ph.D.students

(e) ADMINISTRATIVE DUTIES AT UNIVERSITY OF IBADAN:

(1) Member, Department of Chemistry Finance Committee 2006-date
(2) Member, Department of Chemistry Appointment and Promotion

(A&P) Part 1 Cases 2006-date

(3) Member, Faculty of Science Appointment and

Promotion Part 1 2006-2013

(4) Store officer, Department of Chemistry 2006-2010
(5) Chairman, Publicity Committee for 60^th Anniversary of Department

of Chemistry 2008

(6) Member, Department of Chemistry Postgraduate Committee. 2006

(7) Member, Development and Linkage Committee 2006

(8) Liaison Officer Students Chemical Society UI Chapter 2010

(9) Member Users Committee Macathur Central Laboratory UI 2009
(10) Faculty of Science representative at University of Ibadan

MediaComm. 2006-2008

(11) Member,Finance Committee of Zoological Garden 2011-date

(12) Chairman,Wellness Faculty of Science Health committee 2012-date

(13) Member Panel to Investigate the Circumstances Surrounding

The Death of “SAMSON” The Lion 2013

(14) Member,Senior Staff Disciplinary Committee (SSDC) PANEL” 2013

IX. RESEARCH

(a) Completed

Fatty acids, amines and amino acids are of immense importance. Some fatty acids are known precursors of the biologically important prostaglandins. Some other aliphatic amines and polyamines which are odorous substances are known precursors of the carcinogenic and toxic N-nitrosoamine, while amino acid is the building blocks of proteins. The ability to monitor these groups of compound is very important and several techniques to detect or confirm their presence are needed. A number of analytical methods have been used for their analysis ranging from classical to instrumental methods. However, each of these methods has its limitation and its disadvantages. Classical methods of analysis have the disadvantage of low sensitivity of detection, non-selectivity and non-specificity. The limitation of the classical approach has been overcome by modern chromatographic techniques in particular gas chromatography and high performance liquid chromatography. Gas chromatographic determination of amines at low concentration is hampered by adsorption and decomposition, column ghosting phenomena, tailed elution peaks and low detector sensitivity. To different degrees, one or more of these problems are encountered in the analysis of carboxylic and aminos acids using any of the available chromatographic techniques.

A general approach to these problems has been the preparation of suitable derivatives of the

analytes because derivatization can be used to improve the chromatographic behavior as well

as the sensitivity and specificity of detection. Most derivatization approaches in

chromatographic analysis has been the use of solution reagents, in which the derivatising

reagent is present in solution and mixed with a solution of substrate of interest (homogenous

derivatisation). A major draw back of homogenous derivatisation is associated with the need

to remove excess of reagent because the reagent often has similar behavior to the derivatives

in terms of its response to the chromatographic detection. Therefore the response of the system

to their derivative may be swamped by that of the excess reagent. This problem of excess

reagent is one that could be conveniently overcome if derivatisation was done in a

heterogenous medium using solid-phase reagent.

So, in my research work, I have successfully developed, prepared, and applied some solid-

phase reagents; made up of resin-bound N- nitroso- benzylsulfonamide,resin bound

naphthalene methanol,resin bound bisulfate addition compound of salicylaldehyde and

solution reagent comprising sodium benzoxazole-2-sulfonate for analytical derivatization of

some fatty acids (acetic-, valeric-,hexanoic-.Octanoic-,nonanoic-,capric- lauric-, palmitic

acids) and some primary and secondary amines (ethylamine,propylamine,butylamine,diethylamine, di-n propylamine and di n-butylamine).

The work have been concluded and published (see papers 1,2,4,7,8,9,20,)

In Progress:

Development of bound reagent i.e.Solid-Phase reagent (S-P reagent) for hydroxyl

compounds in particular alcohol. Previous workers have employed solution reagents for

chemical derivatisation of hydroxyl (alcohol) functional group to produce fluorescent

derivatives. One of the frustrating disadvantages of this solution reagent is due to close

similarity in the spectra of fluorescent characteristics of the reagent and the derivatives

it forms with the alcohols.The inevitable presence of excess reagent in the reaction

mixture,causes high background response and hence an inadequate detection limit for

the analyte.Introduction of steps to remove excess reagent often makes the method

more tedious and more prone to error.Therefore,in this study, S-P reagent for the

hydroxy (alcohol) functional group is developed.The idea is based on the high reactivity

of 2-pyridyl esters of thiocarboxylic acids with alcohol in the presence of silver ion

(Ag⁺).An initial stage of this reaction was the preparation of 2-

mercaptobenzoxazole, followed by quarternisation of the heteocyclic nitrogen through

alkylation;after which the S-P reagent was prepared merely by stirring with cationic ion

exchange resin.The reagent was applied in this form to derivatise alcohol to produce

derivative that fluorensced intensely.This study has become very important because it

offers the opportunity to develop new method for trace analysis of some Endocrine

Disrupting Compounds (ECDs) like bisphenol A, triclosan and phthalates in clinical

and environmental samples. Results of the study are beenprocessed for publication. My

research work also continues with analysis of heavy metals and newly emerging

environmental contaminant like poly brominate diphenyl ethers using both

concentrated-based approach and risk-based approach. Some publication arising from

this work are highlighted in papers15,17,18,19,22,23,24,31,36,37,38,39,40 and 46.

(i) Adewuyi, G.O. (1994) Development of resin bound reagents for analysis of

amines and carboxyilic acids.

M.Phil.Dissertation,University of Ibadan.

(ii) Adewuyi, G.O. (1997) Development of resin bound (or solid - phase) reagents

for some different functionalities of analytical importance.

Ph.D.Thesis,University of Ibadan.

X PUBLICATIONS:

(a) Books already Published: Nil

(b) Chapters in Books already published: Nil

Conference Proceedings: Not Applicable

(d) Patents: Nil

(e) Article that have already appeared in learned Journals:

(1) Idowu,O.R and Adewuyi,G.O.(1993) Sodium benzoxazole-2-Sulfon ate. A Derivatisation Reagent for the Analysis of Amines and Amino Acids by HPLC with Fluorescence or UV. Detection. Journal of Liquid Chromatography. Vol.16, No.17, 3773-3791.

(2) Adewuyi, G.O. and Idowu, O.R. (2000): Resin Bound Salicyladehyde Bisulphite Compound. A Derivatisation Reagent for the Analysis of Amines by TLC with Fluorescence or UV. Detection. Nigerian Journal of Science. Vol.34, No.2, 137-144.

(3) Adewuyi, G.O. and Idowu, O.R. (2000): The Preparation of Levamisole and its Determination as Nitro-Derivative by Gas Chromatography. Nigerian Journal of Science. Vol.34, No.2, 145-150

(3) Adewuyi, G.O., Idowu, O.R .and Soyinka, G.O. (2001): Crown Ether Catalyzed Derivatisation of some Carboxylic Acids with Chioromethyl -napthalene for High Performance Liquid Chromatographic Separation. Nigerian Journal of Science. Vol.35, No.1, 57-61

(4) Adewuyi, G.O., Jibiri, N.N., Mabawonkwu, A.O and Badmus', O.R. (2001); Effects of Industrial Disharges on the Water Quality of Soderu River in Ewekoro, South Western Nigeria. UNIQWA Research Chronicle Vol.4, No.1, 206- 222

(6) Sosanwo, O.A., Adewuyi, G.O., Ogunsanwo, B.M. and Adebutu, C.T. (2003): Preparation of Furfural from Cassava Peels and Gmelina arborea Wood Saw Dust. Nigeria Journal of Science. Vol.37, No.l, 197-199

(7) Adewuyi, G.O., Idowu, O.R. and Adeyemi, O.A. (2003): High Performance Liquid Chromatographic (HPLC) Determination of some Fatty Acids as Naphthylmenthyl Derivatives using Resin Supported Naphthalene Methanol as the Derivatisation Reagent. Global Journal of Pure and Applied Sciences. Vol.9, No.2,239 -247

(8) Adewuyi, G.O. and Kareem, M.O. (2004): Naphthalene Sulphonyl Chloride: A Derivatisation Reagent for Analysis of Alcohols and Phenols using High Performance Liquid Chromatography (HPLC) with Fluorescence or U.V. Detection. Journal of Science and Technology Research. Vol.3, No.1, 54-57

(9) Adewuyi, G.O. and Adeyiga, A.K. (2005): Labelling Glycine, 1-Lysine, 1- Cysteine with Benzoxazole-2-Sulfonate via Homogeneous Derivatisation prior to their Determination by High Performance Liquid Chromatography with U.V/Fluorescence detection: Journal of Applied Sciences. Vol.8, No.l, 4577-4586

(10) Ogunsanwo, B.M, Faboya, O.O.P., Idowu,O.R. and Adewuyi, G.O.(2005): Using Rating to Evaluate Quality of Peanut Products. African, Journal of Biotechnology. Vol.4, No.12, 1469-1471

(11) Bankole, S.A., Ogunsanwo, B.M., Osho, A. and Adewuyi,-G.O. (2006): Fungal Contamination and Aflatoxin B, of "Egusi" Melon Seeds in Nigeria. Food Control. Vol. 17, 814-818

(12) Jibiri, N.N. and Adewuyi, G.O. (2007): Radionuclide Contents and Physicochemical Characterization of Solid Waste and Effluent Samples of some Selected Industries in the' City of Lagos, Nigeria. Radioprotection.Vol.43,No.2,203-272

(13) Adewuyi, G.O., Obi-Egbedi, N.O. and Babayemi, J.O. (2008):Evaluation of Ten Different African Wood Species for Potash Production. International Journal of Physical Science. Vol. 3, No.2, 63-68

(14) Adewuyi, G.O. and Ademoyegun, O.T. (2009): Analysis of Major Carotenoids in Different Fractions of Tomatoes. International Journal of Chemistry. Vol.l9, No.4, 219-226

(15) Adewuyi, .G.O., Okonkwo, J. and Okoli, C.P. (2009): Assessments of some Heavy Metals in Soils and Water Leaf (Talinum triangulare) in the Vicinity of a Major Quarry Factory in Ibadan, Nigeria. Fresenius Environmental Bulletin. Vol.18 No.12, 2396-2401

(16) Fabiyi, F.A.S., Rivero, M.N. and Adewuyi, G.O. (2010): Thermal Stability of Mixed-Valent Binuclear Osmium (11,111) Carboxylates. Synthesis and Reactivity in Inorganic, Metal-Organic and Nano-Metal Chemistry. Vol.40, No.1-8

(17) Olowu, O.O., Ayejuyo, O.O., Adewuyi, G.O., Osundiya, M.O., Onwordi, C.T., Yusuf, K.A and Owolabi, M.S. (2010): Determination of Heavy Metals in Crab and Prawn in Ojo Rivers, Lagos, Nigeria. E- Journal of Chemistry. Vol.7, No.2, 520 -530

(18) Olowu, R.A., Ayejuyo, O.O., Adewuyi, G.O., Adejoro, I.A., Akinbola, T.A., Osundiya, M.O. and Onwordi, C.T. (2010) Assessment of Pollution Trend of Oke Afa Canal Lagos, Nigeria. E-Journal of Chemistry. Vol.7, No.2, 605-611

(19) Olowu, R.A., Ayejuyo, O.O., Adewuyi, G.O., Babatunde, A.O., Adejoro,: i.a., Denloye, A.A.B.and Ogundayo A. L. (2010): Determination of Heavy Metals in Fish Tissues, Water and Sediment from Epe and Badagry Lagoons, Lagos, Nigeria. E-Journal of Chemistry. Vol.7, No.l, 215-221

(20) Adewuyi, G.O., Olubomehin, O. and Ayanniyi, A.W. (2010): High Performance Liquid Chromatographic Determination of Proguanil after Derivatisation with Sodium benzoxazole-2-sulphonate. African Journal of Biotechnology. Vol.9, No.6, 900-905

(21) Babayemi J.O., Adewuyi, G.O. (2010): Assessment of Combustion and Potash Production as Options for Management of Wood waste. Journal of Applied Science Environmental Management. Vol.4, No.l, 73-75

(22) Adewuyi, G.O., and Opasina M.A.; (2010): Physiochemical and Heavy Metals Assessments of Leachates from Aperin Abandoned Dumpsite in Ibadan City, Nigeria. E- Journal of Chemistry. Vol.7, No.4, 128-1283

(23) Adewuyi, G.O., Dawodu, F.A. and Jibiri, N.N. (2010) Studies of the Concentration Levels in Vegetable (Amaranthus caudatus) Grown in Dumpsites within Lagos Metropolis. The Pacific Journal of Science and Technology. Vol.11, No.l, 616-621

(24) Adewuyi, G.O., Etchie, O.T. and Ademoyegun, O.T. (2010): Determination of Total Petroleum Hydrocarbons and Heavy Metals in Surface and Sediments of Ubeji River Warri, Nigeria. Bioremediation Biodiversity and Bioavailability. Vol.5, No.1, 46-51

*(25) Adewuyi, G.O., Oputu O.U, and Adenuga W. (2010) levels of heavy metals in soils and vegetables grown near dumpsites in Lagos and Ogun States South-West Nigeria. International Journal of Chemistry. Vol.20, No.3, 141-146

*(26) Adewuyi, G.O, Oputu O.U. and Opasina M.A. (2010) Assessments of Groundwater Quality and Saline intrusions in Coastal Aquifers of Lagos Metropolis, Nigeria. Journal of Water Resources and Protection. Vol.2, 849-853

*(27) Ademoyegun, O.T, Adewuyi G.O. and Fariyike T.A. (2010) Effect of Heat Treatment on

Antioxidant Activity of some Spices. Continental Journal of food science and Technology.

Vol.4, 53-59

*(28) Nnamdi N.J, Amakom C.M. and Adewuyi G.O. (2010) Radionuclide Contents and

Physicochemical Water Quality Indicators in streams, well and Borehole water sources in high Radiation Area of Abeokuta, southwestern Nigeria. Journal of Water Resources and protection. Vol.2, 291-297

*(29) Ayede, A.I, Adewuyi G.O and Abafe A.O. (2011) Development and validation of a Thin

Layer Chromatographic Methods for The Simultaneous Determination of Sulphadoxine-

Pyrimethamine Artesunate+Amodiaquine Metabolites in Human Urine. International

Journal of Chemistry. Vol.21, No.1, 41-53

*(30) Adewuyi G.O, Abafe A.O and Ayede A.I (2011) Development and Validation of a Thin Layer Chromatographic Method for the Determination of Artsunate and Amodioquine in Tablet formations. African Journal of Biotechnology. Vol.10, No.60, 13028-13038

*(31) Etchie T.O, Etchie A.T. and Adewuyi G.O. (2011) Source Identification of Chemical Contaminants in Enviromental Media of a Rural Settlement. Research Journal of Environmental Science Vol.5, No.9, 730-740

*(32) Babayemi J.O, Adewuyi, G.O, Dauda K.T. and Kayode, A.A. (2011). The Ancient Alkali Production Technology and The Modern Improvement: A review. Asian Journal of Applied Sciences. Vol.4, No.1, 22-29

*(33) Fabiyi F.A.S, Gonzalez C.S. and Adewuyi,G.O. (2011) Mixed-Valent Complexes of Rhodium with Acetylinic ligands: Their Electrochemical Studies. International Journal of Chemistry. Vol.3, No.3, 62-68

*(34) Adewuyi,G.O, Olatoye O.I, Abafe A.O, Otokpa M.O and Nkukut N.K. (2011) High

Performance Liquid Chromatographic Method for Estimation of Two Antibiotics

Residues in Liver and Muscle of Broilers in Ibadan city, Southern Nigeria. Journal of

Pharmaceutical and Biochemical Sciences. Vol.11, No.06, 1-4

*(35) Adewuyi,G.O.and Olowu,R.A.(2012) High Performance Liquid Chromatographic

(HPLC) Method for Comparison of Levels of Some Phthalate Esters in Children’s Toy

and Their Health Implications. The Pacific Journal of Science and Technology.

Vol.13, No.2, 251-260

*(36) Etchie A.T, Etchie T.O and Adewuyi,G.O (2012) Systemic Chronic Health Risk Assessment to Cd²⁺ and Cr⁶⁺ in Groundwater. Toxicological and Environmental Chemistry. Vol.94, No.11 181-184

*(37) Etchie A.T, Adewuyi G.O and Etchie T.O. (2012) Source apportionment of Heavy Metals in Utility Water Sources. Terrestrial and Aquatic Environmental Toxicology. Vol.6, No.2 112-115

*(38) Adewuyi, G.O. and Olowu, R.A. (2012). Assessment of Oil and Grease, Total Petroleum Hydrocarbons and Some Heavy Metals in surface and Groundwater within The Vicinity of Nigeria National Petroleum Oil Depot in Apata, Ibadan Metropolis, Nigeria. International Journal of Research and Review in Applied Sciences. Vol.13, No.1, 166-174

*(39) Adewuyi G.O., Etchie A.T. and Etchie O.T (2012) Evaluation of Total Petroleum Hydrocarbons (TPH) and Some Related Heavy Metals in soil and Groundwater of Ubeji Settlement, Warri Metropolis, Nigeria. Terrestrial and Aquatic Environmental Toxicology. Vol.6, No.1, 61-65

*(40) Etchie A.T, Adewuyi G.O and Etchie T.O. (2012) Chronic Exposure to Heavy Metals in Public Water Supply and Human Health Risk Assessment. Terrestrial and Aquatic Environmental Toxicology. Vol.6, No.2, 106-111

*(41) Adewuyi, G.O. (2012) High Performance Liquid Chromatographic Identification of Phthalates in Sewer Waste and a Receiving River in Ibadan City, Southwestern Nigeria. Journal of Water Resources and Protection.Vol.4, 851-858

*(42) Adewuyi, G.O. and Adeleye, A.O. (2013) Evaluation of Polybrominated Diphenyl Ethers in Sediment of Lagos Lagoon, Nigeria, African Journal of Environmental Science and Technology. Vol.7, No.7,686-693

*(43) Ademoyegun, T.A. Akin-Idowu, P.E. Ibitoye, D.O. and Adewuyi, G.O. (2013). Phenolic Contents and Free Radical Scavenging Activity in Some Leafy Vegetables. International Journal of Vegetable Science. Vol.19, No.2, 126-137

*(44) Adewuyi,G.O. and Ogunneye, A.L. (2013).UV-Spectrophotometry and RP-HPLC

Methods for the Simultaneous Estimation of Aceta-minophen Validation, Comparison

and Application for Marketed Tablets Analysis in South West, Nigeria. Journal of

Chemical and Pharmaceutical Research. Vol.5, No.5, 1-1

*(45) Fabiyi,F.A.S. and Adewuyi, G.O.(2013) Luminescence and Therm- al Behaviour of Two New 2,2’:6’2’-Terpyridine Complexes of a Divalent Lanthanide. International Journal of Chemistry. Vol.5, No.2, 1-9

*(46) Etchie,A.T.,Etchie,T.O.,Adewuyi,G.O.,Krishnamurthi,K.Saravana Devi,s.and

Wate,S.R.(2013) Prioritizing Hazardous Pollutants inTwo Nigeria Water Supply

Schemes:A risk-based approach Bulletin Of The World Health Organisation. Vol.91,

No.8, 546-620

*(47) Olowu, R.A. Adewuyi, G.O. and Onipede, O.J.(2013) Heavy Metals Status in Muscles of

Dry Trachinocphalus mtops From Orita-Merin Market in Ibadan Metropolis South-West,

Nigeria. Journal of Environmental and Earth Science. Vol.3, No.13, 53-57

(48) Etchie, A.T., T.O. Echie, G.O. Adewuyi, K. Kannan, S.R. Wate, Sivanesan, and A.U. Chukwu. (2014). Influence of Seasonal Variation on Water Quality in Tropical Water Distribution System: Is the disease burden significant? Science Direct. 49: 186-196

(49) P.C. Okoli, Q.J. Guo, G.O. Adewuyi. (2014). Application of Quantum Descriptors for Predicting Adsorption Performance of Starch and Cyclodextrin Adsorbents. Carbohydrate Polymers. 101: 40-49

(50) R.A. Olowu, G.O. Adewuyi, O.J. Onipede, O.A. Lawal, O.M. Sunday. (2015).Concentration of Heavy Metals in Root, Stem and Leaves of Acalypha indica and Panicum maximum jacq from Three Major Dumpsites in Ibadan Metropolis, South West Nigeria. American Journal of Chemistry. 5(1): 40-48

(51) T.M. Osobamiro, G.O. Adewuyi, (2015). Levels of heavy metals in the soil: Effects of season, agronomic practice and soil geology. Journal of Agricultural Chemistry and Environment. Vol.4 No.4, 109-117

(g) Technical Reports and Monographs: Nil.

XI Major Conferences Attended with Paper Read (In the last 5 years):

(1) Conference on Environmental Health Sciences-Ibadan 2014. Department of Environmental Sciences, Faculty of Public Health, College of Medicine, University of Ibadan, Nigeria. Onipede, O.J., Adewuyi, G.O., Ayede, I.A., Olayemi, O., Bello, O. and Osamoh, O. Diethyl phthalate (DEP), Di-nbutyl phthalate (DnBP) and Dipropyl phthalate (DPP) in blood, breast-milk and urine of transfused mothers in University College Hospital (UCH) Ibadan. 29^th October, 2014.

(2) Conference on Environmental Health Sciences-Ibadan 2014. Department of Environmental Sciences, Faculty of Public Health, College of Medicine, University of Ibadan, Nigeria. Adedosu, H.O. Adewuyi, G.O., Osibanjo, O. Optimization of a High Performance Liquid Chromatographic (HPLC) method for the analysis of Phthalate esters in Environmental Samples. 29^th October, 2014.

(3) Conference on Environmental Health Sciences-Ibadan 2014. Department of Environmental Sciences, Faculty of Public Health, College of Medicine, University of Ibadan, Nigeria. Adewuyi, G.O., Omotoso, M.A, Ogunranti M.O and Oladiran O.E. Levels of Heavy Metals, Phthalates and Polyaromatic Hydrocarbons in Soil and Groundwater within the vicinity of E-Waste Recycling/Dumpsite in Ibadan City. 29^th October, 2014.

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