Office location: NSC Ground floor
Area of specialization: Analytical/Environmental Chemistry
Post doctoral studies (1994, University of Plymouth, England); Phd Anal./environ. chem. (1991, University of Hull, Hull, England); Msc Anal. Science (1983,University of Hull, Hull, England). Bsc Chemistry (1981,University of Nairobi, Nairobi, Kenya).
Full professor (2010); Associate professor (2004);Senior lecturer JKUAT (1995); Pesticide research chemist at the Ministry of Agriculture, Nairobi (1983);
Chartered Scientist, CSci (2005)
Kenya Chemical Society (1997)
Chartered Chemist, MRSC, (1993)
Registered Environmental Lead Expert (NEMA)
*Air quality monitoring
*Design and Fabrication of water purification cartridge using locally available materials
*Development of a flow injection methods
*Survey and testing of plants of medicinal value
*Analysis of honey for volatile organic compounds using GC-MS and physicochemical quality assessment of honey in Kenya. Msc 2011
*Studies on the degradation kinetics and levels of selected organic based pesticides in water systems around the coffee growing zones. Msc 2011
*Survey on the NOx and SO2 levels at selected sites inNairobi city using passive sampling. JKUAT, Msc, 2009.
*Investigation of charcoal from local sawdust in waste water treatment contaminated with pesticides. JKUAT, Msc, 2009.
*Evaluation of nutritional value of yellow oleander seed cake as animal feed. JKUAT Msc, 2009.
*Evaluation of clay from mwea as a raw material in cement manufacture. Kenyatta University. Msc 2008
*Survey and testing of plants of medicinal value in Embu and Kitui districts,Kenya. JKUAT. Phd 2008
*Development of a flow injection method for determination of arsenic in grain and water samples with hydride generation. Msc 2008
*Extraction and testing of natural products with pesticidal value. Msc 2008
*Evalution of water quality in Kitui and Mwingi districts,Kenya. Msc 2008
*Evalution of yellow oleander oil for exploitation in industry inKenya. Msc 2005
*Study of textile effluent and biodegradation of dyes and pigments using suitable microorganisms to remove colour. Msc, 2005.
*Determination of Cd, and F in phosphate rock fertilizer. Msc. 2005
*Analysis of acephate pesticide in honey from easternProvince,Kenya using capillary gas chromatography with selective detection. Msc, 2004.
*Seasonal fluctuations of heavy metals inLake Naivaisha. Msc, 2004
*Assessment of the levels of some toxic and antinutritional substances in Kenyan coffee pulp. Msc. 2001.
*Analysis of amitraz in milk using chromatographic separation Msc 1999
*Analysis of air pollutants in Nairobi city. Msc ongoing
*Evaluation of the organic pollutants in Lake Victoria. Phd ongoing
*Analysis of selected heavy metal contamination in sludge from Nakuru Municipality and their uptake in crops. Msc Egerton university, ongoing
*Synthesis, characterization and use of nanoparticles to degrade pesticide residues in horticultural produce and environment in Kenya. Ph.D ongoing
*Trace metal speciation, concentration of polycyclic aromatic hydrocarbons in sediment from makupa creek, Mombasa and synergistic effects on their mixtures on Xenopus Laevis embroyos. Ph.D ongoing
*Regional training on GC-MS, JKUAT, Kenya, funded by Pan African Chemistry Network under The Royal Society of Chemistry and OPCW, UK, August 2011
*Regional training on GC-MS, JKUAT, Kenya, funded by Pan African Chemistry Network under The Royal Society of Chemistry and OPCW, UK, August 2010
*Regional training on GC-MS, University of Addis Ababa, Ethiopia, funded by Pan-African Chemistry Network under The Royal Society of Chemistry, UK, January 2010
*Regional training on GC-MS, JKUAT, funded by Pan-African Chemistry Network under The Royal Society of Chemistry, UK, February 2009
*Esalama training workshop, Victoria Falls, Zimbabwe, December 2007
*Mermet training workshop (Arablab 2007 (14th February 2007)
*Esalama training workshop, Kampala December 2006
*Esco Middle East Regional Workshop (Arablab 2006), 17th February 2006.
*Mermet training workshop (Aralab 2006), 16th February 2006.
*Esalama training workshop, Morogoro 12th to 16th September 2005.
*Certificate of Achievement for outstanding excellence in MS9, MS4,MS4-5, MS9-5 product support. May 6th 2005.
*International training on MS9, MS4,MS4-5, MS9-5 product support. Melet schloesing laboratories. 16th to 20th June 2003, Paris, France.
Research Publications and Conference papers
Ngumba E., Gachanja A., Kiptoo J., Studies on the degradation kinetics and levels of chlorothalonil and chlorpyrifos in water systems within coffee growing zones of Kiambu county, Kenya. Presented in 1st PACN Congress on agricultural productivity, held in Accra, Ghana, 21-23 November 2011.
Gachanja A., Lancaster S., Analytical Chemistry in Eastern Africa. Oral presentation in Federation of Analytical Chemists Societies (FACSS), Held at Reno, NV, USA. October 3-7, 2011
Patrick L Kinney, Michael Gatari Gichuru, Nicole Volavka-Close, Nicole Ngo, Peter K Ndiba, Anna Law, Anthony Gachanja, Samuel Mwaniki Gaita, Steven N Chillrud, Elliott Sclar Traffic Impacts on PM(2.5) Air Quality in Nairobi, Kenya. Environmental Science Policy Vol14, 2011, 369-378
Kareru P.G., Keriko J.M., Gachanja A. N., Kenji G.M., Anti-termite and antimicrobial properties of paint made from Thevetia Peruviana (Pers.) Schum. Oil extract. Africa Journal of Pharmacy and Pharmacology Vol. 4(1). pp. 000-000, 2010.
Wamoto M. J., Chacha J.S., Oyaro N. and Gachanja A., Determination of NOx and Sox Levels in Nairobi city using Passive and Active samplers. Lecture presentation in the 6th Kenya Chemical Society/ East and Southern Africa Environmental Chemistry / Theoretical Chemistry in Africa International conference, Held at Reef Hotel, Mombasa, Kenya. 5th to 9th October 2009
Gachanja A. Mass spectrometry in East Africa; challenges and expectations. A Plenery lecture presented in The First International Symposium on Analytical Chemistry for sustainable Development-ACSD 2010. Mohammedia, Morocco. 17-19th March 2010
Ngumba E., Gachanja A.N., Method optimization for determination of Chlorothalonil in water using solid phase extraction followed by gas chromatography with mass spectrometric detection. Lecture presentation in the 6th Kenya Chemical Society/ East and Southern Africa Environmental Chemistry / Theoretical Chemistry in Africa International conference, Held at Reef Hotel, Mombasa, Kenya. 5th to 9th October 2009
Muriithi N. T., Karoki B.K., Gachanja A. N., Chemical and mineral composition of mwea clays. Lecture presented in the 6th Kenya Chemical Society/ East and Southern Africa Environmental Chemistry / Theoretical Chemistry in Africa International conference, Held at Reef Hotel, Mombasa, Kenya. 5th to 9th October 2009
Gachanja A., Analytical Instrumentation: the Kenyan Situation. Plenary lecture presented in the 6th Kenya Chemical Society/ East and Southern Africa Environmental Chemistry / Theoretical Chemistry in Africa International conference, Held at Reef Hotel, Mombasa, Kenya. 5th to 9th October 2009.
Gachanja A., Maina A. W., Water purification using natural plant coagulants (Moringa oleifera seeds and Maerua documbens root). Paper presented in Pan African Chemistry Network International conference, Sustainable water conference, 25-28 August 2009
Kareru P. G., Keriko, J.M., Kenji, G.M., Thiong’o G.T., Gachanja, A. N., Mukiira, H.N., Antimicrobial activities of skin care preparations from plant extracts. African Journal of Traditional, Complementary and Alternative Medicines, CAM (2010) 7(3), 000-000
Steven Lancaster, Ngaio Richards and Anthony Gachanja, Extinction Alert. Chemistry World, vol 6,2009, pg 38
Steven Lancaster, Ngaio Richards and Anthony Gachanja, Mass spectrometry in Africa and its role in environmental monitoring of endangered species. Spectroscopy Europe, vol 21, 2009, pg xx-
Wanyika H.N., Kareru P.G., Keriko J.M., Gachanja A. N., Kenji G.M., Mukiira N. J., Contact toxicity of some fixed plant oils and stabilized natural pyrethrum extracts against adult mais weevils (sitophilus zeamais motschulsky). Africa Journal of Pharmacy and Pharmacology Vol. 3(2). pp. 066-069, February, 2009.
Gachanja A. N. Current status of urban air quality in Eastern Africa. Paper presented in ‘Eastern Africa Subregional workshop on better air quality in cities, Policy Session’, held at UNEP Headquaters Nairobi, Kenya, 21-22 October 2008.
Murago T., Gachanja A. N., Oyaro, N., Determination of the quantity of active ingredients in pain killers using GC-MS. Paper presented in Joint eastern and southern Africa environmental and theoretical chemistry conference in Africa’ held in Victoria Falls, 3-7th December 2007.
Kareru P. G., Gachanja A. N., Keriko J M., Kenji G. M. Antimicrobial activity of some medicinal plants used by herbalists in eastern province, Kenya. African Journal of traditional complimentary and alternative medicines. 5, 000, 2007.
Kareru, P. G. Keriko, J. M., Gachanja, A. N., Kenji, G. M. Direct detection of triterpenoids saponins in medicinal plants. African Journal of traditional complimentary and alternative medicines. 5, 000, 2007.
Kareru P.G., Kenji G.M., Gachanja A.N., Keriko J. M., Mungai G., Traditional medicines among the embu and Mbere peoples of Kenya. African Journal of traditional complimentary and alternative medicines. 4, 75-86, 2007.
Gachanja A. N., Kareru P.G., Keriko J. M., Kenji G. M., Screening of indigeneous medicinal plants for anthelmintic activity. Journal of Pharmacy and Pharmacology, Science proceedings. 2006, A82.
Njagi J.I, Kagwanja S.M., Gachanja A.N., A simple method for the determination of acephate in honey from Mbere, Eastern Kenya. Journal of the Kenya Chemical Society Vol 3, 2006, pg 56 – 66.
Gachanja A. N., Kareru P.G., Keriko J. M., Kenji G. M., Evaluation of some common medicinal plants used by herbalists in Eastern Province, Kenya. Journal of Pharmacy and Pharmacology, Science proceedings. 2006, A54
Kamau, J.N., Gachanja, A, Ngila, J.C., and Kazungu J. and Gatagwu J. The Seasonal and Spatial Variation of Cu, Fe, Mn, Pb and Zn Sediments fractions in lake Naivasha, Kenya. Lakes & Reservoirs: Research and Management; 2007, 12: 303-313.
Kamau, J.N., Gachanja, A, Ngila, J.C., and Kazungu J., Anthropogenic and seasonal influence on the sediment-water fluxes for selected metals at Lake Naivasha, Kenya. Lakes & Reservoirs: Research and Management ; 2008,13:145-154
A. N. Gachanja. Water quality and its industrial implications. Invited oral presentation. Jomo Kenyatta University of Agriculture and Technology, Annual Conference. October 27th – 28th, 2005.
A. N. Gachanja, J. N. Kamau, J. C. Ngila, M. J. Kazungu, and M. Zhai. Sediment – Water fluxes for selected heavy metals at Lake Naivaisha, Kenya. Oral presentation in Sediment and soils conference held in Bled, Slovenia, August 29th to 1st September 2005.
A. Gachanja. Polycyclic Aromatic Hydrocarbons, Environmental Applications. Encyclopaedia of Analytical Chemistry. Elsevier © 2005.
A. Gachanja. Polycyclic Aromatic Hydrocarbons, Overview. Encyclopaedia of Analytical Chemistry. Elsevier © 2005.
J. N. Kamau, A. N. Gachanja, M. J. Kazungu and J. K. Gatagwu. Seasonal variation of heavy metal speciation of Lake Naivaisha, Kenya. Oral presentation in ENVIROMIN 2004, International conference on environmental health aspects of mining, refining and related industries. Kasane, Botswana, June 27th to 1st July 2004.
A. Gachanja, P. Kareru, G. T. Thiong’o, J. Keriko and K. Wanjau. Traditional methods of preparation of soaps using plant oils. Poster presentation in IUPAC International conference on Biodiversity and Natural products: Chemistry and medical Applications. 26-31 January 2004, New Delhi (India).
Keriko, J. M.; Gachanja, A. N.; Odhiambo, P. O.; Shitanda, D. (2003). Extraction and utilization of Yellow Oleander (Thevetia peruviana) seed oil in Kenya. The proceeding of end of World Bank Funded Projects Conference. 1st – 4th December 2003 at KARI HQ, Nairobi, Kenya.