Department of Chemistry P.O. Box 43844, -00100, E-Mail:This email address is being protected from spambots. You need JavaScript enabled to view it., This email address is being protected from spambots. You need JavaScript enabled to view it. NAIROBI Download full CV

Books and Books Chapters

1. Kevin Otieno Okoth (Tom Mboya University College, Kenya), Ruth Nduta Wanjau (Kenyatta University, Kenya) and Maurice Otieno Odago (State University of New York at Oneonta, USA)Semiconductor Nanocomposites-Based Photoelectrochemical Aptamer Sensors for Pharmaceuticals Detection Published as a book chapter of the of the Effects of Emerging Chemical Contaminants on Water Resources and Environmental Health by IGI Global, Copyright: © 2020 |Pages: 24 DOI: 10.4018/978-1-7998-1871-7.ch00, Book Chapter 7(pp. 109-132).
2. John Okapes Joseph, Isaac W. Mwangi, Sauda Swaleh, Ruth N. Wanjau, Manohar Ram and Jane Catherine Ngila (2017) A Comparative Study of Modified and Unmodified Algae (Pediastrum boryanum) for Removal of Lead, Cadmium and Copper in Contaminated Water: Published as a book chapter of the Environmental Sciences"Water Quality" By INTECH: DOI: 10.5772/65745. Book chapter 11
3. Nthiga, E.W. Wanjau, R. and Murungi, I.J. (2013). Essential elements in watermelons grown in Kenya. LAP LAMBERT Academic Publishing (January 1, 2013). ISBN-13:978-3-8443-3040-3/ ISBN-10:3844330402/EAN: 9783844330403
4. James Ndiritu, Jane Murungi and Ruth Wanjau (2012) Essential Elements And Lead In Males Using Finger Nails And Scalp Hair: Influence Of Risk Factors On Levels Of Lead And Essential Elements In Finger Nails And Scalp Hair Of Males In Kenya   LAP LAMBERT Academic Publishing (Dec23. 2012).  ISBN-10: 3659312037/   ISBN-13: 978-3659312038
5. Odongo Adongo, Jane Murungi and Ruth Wanjau (2013). Medicinal Plants and Essential Elements in Them.  LAP LAMBERT Academic Publishing (May 24, 2013)   ISBN-10: 3659365025 / ISBN-13: 978-3659365027

Research & Publications

• Mwangi, I. W., Kinyua, E. M., Nthumbi, R., Wanjau, R. N., Swaleh, S., & Ngila, J. C. (2021). Iron (III) doped titanium dioxide coated dimensionally stable graphite anode electrode for electro-chemical treatment of domestic wastewater. Heliyon, 7(4), e06671.
• Ndung’u S.N., Wanjau R.N, Nthiga E.W., Nderitu J., Mbugua G.W. (2020) Complexation equilibrium studies of Cu²⁺, Cd²⁺ and Pb²⁺ ions onto ethylenedamine quaternised Artocarupus heterophyllus L. seeds from aqueous solution. Journal of Applied Chemistry Vol. 13, (12): 1-12 e-ISSN: 2278-5736.
• Njeru, C. W., Mwangi, I. W., Wanjau, R. N., Kiriro, G. N., & Mbugua, G. W. (2020). Determination of Colour and Total Viable Counts in Fresh and Charcoal Flue Gases Treated Beef Using Digital Colour Meter. International Journal of Scientific Research in Science, Engineering and Technology Print ISSN: 2395-1990 | Online ISSN : 2394-4099 (www.ijsrset.com) doi : https://doi.org/10.32628/IJSRSET207470 2
• Masimba Tapera, Ruth Wanjau, Alex K. Machocho and Pamhidzai Dzomba (2020). Use of Polyphenol Extracts from Dioscorea steriscus and Plecranthus esculentus N.E.Br Tubers to Curb Oxidative Deterioration of Sunflower Oil. South Asian Research Journal of Natural Products 3(1): 18-28, 2020; Article no.SARJNP.55089
• Tapera, M., Wanjau, R., Dzomba, P., Machocho, A. K., &. Mburu, J. (2020). Phytochemical study to validate the ethnobotanical importance of Dioscorea steriscus tubers obtained from Zimbabwe, STED Journal, 2(1), 1-10. DOI: 10.7251/STED2002001T
• Isaac Mwangi,·Gerald Mbugua, Ruth Wanjau, Swaleh Sauda, Titus Msagati, Jane Catherine Ngila (2019). Removal of Fluoride Ions in Stored Drinking Water by Triethylamine Chemically Modified Polyethylene Containers. International Journal of Environmental Research 13:175–184   https://doi.org/10.1007/s41742-018-0163-2
• Isaac Mwangi, Grace Kiriro, Sauda Swaleh, Ruth Wanjau, Paul Mbugua, Jane Catherine Ngila (2018). Remediation of degraded soils with hydrogels from domestic animal wastes International Journal of Recycling of Organic Waste in Agriculture  https://doi.org/10.1007/s40093-019-0242-1
• Njoroge, P.W.,Mutembei P.K., Wachira, J. M. and Wanjau, R. (2014). Magnetic Concentration of Iron in Lateritic Soils from Kamahuha, Murang’a County, in Kenya using Carbon Monoxide Generated In-Situ International Journal of Scientific Engineering and Technology 3 (8): 1043-1046
• Mathenge Scholastica Gatwiri1, Wanjau Ruth Nduta, Kenji Glaston Mwangi (2014). Sulfamethoxazole Residues in Vegetables Irrigated with Untreated Wastewater., J. Pharm. Biomed. Sci., 4(1)1-10.
• Ngari FW, Wanjau RN, Njagi EN, Gikonyo NK (2014). Herbal Materials Used in Management of Oral Conditions in Nairobi, Kenya. Journal of Oral Health &Community Dentistry 8(1): 36-42
• TM Kipngetich, RN Wanjau, NK Gikonyo, J Murungi, CK Nicholas (2014). Influence of Soil and Rain on the Levels of Inorganic Anions in Amaranth Leaves from Selected Parts of Kenya. Food Science and Quality Management 31, 12-20
• Joyce G.N. Kithure, Ruth N Wanjau, Jane I Murungi., Caroline L. Thoruwa (2014). Analysis of Deltamethrin Residue Amounts Using HPLC in Some Vegetables Consumed in a Rural Area - Makuyu, Kenya The International Journal of Science & Technoledge (ISSN 2321 – 919X) 2(12):279-284.

• Onyambu Z.M1., Nawiri, M.P., Kareru, P and Wanjau, R.N (2014). Levels of Selected Heavy Metals in Aloe vera Branded herbal Soaps sold in the Kenya Market. Kenya Chemical Society Volume 8: Issue 1, 98-102.

• Esther W. Nthiga, Ruth Wanjau, Jane I. Murungi (2014). Levels of chromium in peel, seeds, red flesh and white flesh of Varieties of Watermelons grown in Kenya. Kenya Chemical Society 8(1): 73-82

• Njiru, M.K, Odundo, J.O, Wanjau, R.N and Nawiri, M.P (2014) Exploring the Nutraceutical Values of Residues of Mangifera Indica L. Grown In Embu County, Kenya Journal of Kenya Chemical Society 8: (1): 83-88

• Joseph K. Rugutt,, Kevin Otieno Okoth, Ruth N. Wanjau, Nicholas K. Gikonyo, Alex Machocho, Kipgeno J. Rugutt, Kristina Y. Rykhlya, Keil B. Harris, Katie R. Wilson, and Joel Koech (2014). US-Africa Collaboration in a Chemical Education Project Involving Analysis of Amaranthus Grain Oil from Selected Agro-Ecological Zones in Kenya. Chem. Educator 19: 50–54.

• Joseph K. Rugutt,, Kevin Otieno Okoth, Ruth N. Wanjau, Nicholas K. Gikonyo, Alex Machocho, Kipgeno J. Rugutt, Kristina Y. Rykhlya, Keil B. Harris, Katie R. Wilson, and Joel Koech (2014). A Quantitative Analytical Chemistry Research-based Experiment Involving Comparative Analysis of Amaranth Grain Oils Extracted from Embu and Meru Districts in Kenya Chem. Educator 19: 91-95.
• PM Njogu, JJ Kitetu, RN Wanjau, JM Keriko (2013) Application of the Perpest Model in the Prediction of Environmental Risks of Endosulfan on Oreochromis Leocostictus. A Case Study of Lake Naivasha, Kenya. Scientific Conference Proceedings
• EO Omwango, ENM Njagi, GO Orinda, RN Wanjau (2013). Nutrient enrichment of pineapple waste using Aspergillus niger and Trichoderma viride by solid state fermentation African Journal of Biotechnology 12 (43): 6193-6196
• EW Nthiga, R Wanjau, JI Murungi (2013). Analysis of levels of boron in three varieties of watermelons from githurai and mwea markets in Kenya. International Journal of Physical and Social Sciences 3 (1): 263-278
• Masime Jeremiah O, Wanjau Ruth, Murungi Jane and Onindo Charles (2013). Analysis of the levels of arsenic in home-made brews, spirits, in water and raw materials using Hgaas in Nairobi county. African Journal of Pure Applied Chemistry 7 (8): 291-301
• Florence W. Ngari, Nicholas K. Gikonyo, Ruth N. Wanjau and Eliud N.M. Njagi (2013). Investigation of Selected Pathogenic Microorganisms and Toxic Elements in Herbal Materials Used in Management of Oral Health in Nairobi County, Kenya J. Appl. Environ. Biol. Sci., 3(12)1-7.
• Jeremiah O. Masime, Ruth Wanjau, Charles Onindo (2013). Determination Of the Levels of Nitrite in Homemade Brews, Spirits and Raw Materials Used Using UV – Visible Spectroscopy In Nairobi County International Journal of Advancements in Research & Technology, 2(7): 461-472
• Masime Jeremiah, Wanjau Ruth, Murungi Jane, Onindo Charles (2013). Analysis of the Levels of Nitrate in Homemade Brews, Spirits, in Water and Raw Materials in Nairobi County. Applied Scientific Research 2013; 2( 6):14 – 19
• Masime Jeremiah O, Wanjau Ruth, Murungi Jane, Onindo Charles (2013). A Comparison of the Levels of Nitrate, Nitrite and Phosphate in Homemade brews, Spirits, in Water and Raw Materials in Nairobi County Using UV-Visible spectroscopy International Journal of Scientific & Engineering Research, 4, (12): 329-344.
• James Ndiritu, Ruth Wanjau, Jane Murungi (2013). Lead and Zinc in Finger Nails and Scalp Hair of Adult Males in Kenya. International Journal for Innovation Education and Research 1(4): 95-108.
• Ndiritu James, Murungi Jane, Wanjau Ruth (2013). Lead and calcium in human males using finger nails and scalp hair. International Journal of Physical and Social Sciences 3 (1): 393-410.
• Stephen Odongo Adongo, Jane Murungi, Ruth Wanjau & Fidensio Ndegwa (2012). Determination of The Concentrations of Zinc, Magnesium and Iron in Some Medicinal Plants Used By The Chuka Community In Kenya. The SciTech, Journal of Science & Technology1(2): 1-7.
• Njagi E. Silas Jane I. Murungi R.N. Wanjau (2012). The pH of Leaf Water Extracts and Amount of Acid required lowering the pH of Leaf Water Extracts to 5.0American International Journal of Contemporary Research 2 (11); 72-78.
• Njagi E. Silas Jane I. Murungi R.N. Wanjau (2012). Levels of Macronutrients of Leaves of Selected Plants from Highlands East of Mount Kenya International Journal of Applied Science and Technology 2(9): 105-110.
• James Ndiritu, Jane Murungi, Ruth Wanjau, Njogu Kagema . Assessment Of Lead Risk Exposure Factors In Adult Males In Kenya. International Journal of Physical and Social Sciences Vol 2(12):525-546.
• James Ndiritu, Ruth Wanjau, Jane Murungi (2012). Lead in Finger Nails and Scalp Hair of Adult Males in Kenya International Journal of Physical and Social Sciences Vol 2(10): 211-224.
• S.O. Adongo, J. Murungi, R. Wanjau & F. Ndegwa (2012). Analysis of Selected Essential Elements of Medicinal Plants used by Chuka Community, Tharaka Nithi County, Kenya The Sci. Tech, Journal of science and Technology Special Issue, p.87-94
• S. O. Adongo, J. Murungi, R. Wanjau (2012). Determination of Levels of Selected Essential Elements in the Medicinal Plants used by Chuka Community, Meru-Kenya using AAS. International Journal of Physical and Social Sciences Vol 2(5): 69-82.
• Joseph B. Skudi, Ruth Wanjau, Jane Murungi and C.O.Onindo (2011). Alum Treated Grey Water for Toilet Flushing, Mopping and Laundry Work. Hydrology Current Research 2(2): 114-117.
• P. M. Njogu, J. M. Keriko, R. N. Wanjau and J. J. Kitetu (2011). Distribution of Heavy Metals in Various Lake Matrices: water, soil, fish and sediments. A Case Study of the Lake Naivasha Basin, Kenya. Journal of Agriculture, Science and Technology, Vol. 13 No. 1, 91 – 106.
• Njogu P. Mwangi, Wanjau R. Nduta and Murungi J. Igoki (2009). The Therapeutic and Nutritional Value of Tea Beverage in Respect to Active Metallo-enzyme, Immune Boosters and Anti-Oxidant Ingredients. International Journal of Biological Science, Vol. 1, No. 2, 77 – 81.
• Faridah Hussein Were, Wilson Njue, Jane Murungi, Ruth Wanjau (2009). Comparison Of Some Essential And Heavy Metals In The Toenails And Fingernails Of School-Age Children In Kenya Bull. Chem. Soc. Ethiop. 23(1): 117-122.
• Murungi J. Igoki, Njogu P. Mwangi, Wanjau R. Nduta, Potential environmental challeges posed by the disposal of spent tea leaves into the environment, Int. J. of Pure and Appl. Sci. 1(3):89-94 (2008).
• Faridah Hussein Were, Wilson Njue, Jane Murungi, Ruth Wanjau. Use of Human nails as bio-indicators of heavy metals environmental exposure among school age children in Kenya Science of the Total Environment, 2008, 392: 376-384.
• Muchemi G.N., Wanjau R.N., Murungi J.I., Njue W, Determination of some immune boosting trace elements in selected food grains grown in Kenya J. of The Kenya Chemical Society 2007, 4(1): 27
• Ruth Wanjau, Hu Bin, Jiang Zucheng, He Man, Liang Pei, Determination of Trace Metal Imputities in Cerium Oxide by Fluorination-Assisted ETV-ICP-AES HPLC Separation Using P507 Resin, J. Rare Earths, 2004, 22(2): 197.
• Ruth Wanjau, Hu Bin, He Man Jiang Zucheng, Wu Ying-liang, Direct Determination of trace Impurities in Highh Purity Neodymium after In-Situ Analyte Matrix Separation by Flourination Assisted ETV-ICP-AES J. Rare Earths, 2004, 22(3): 319.
• Ruth Wanjau, Jane Murungi, Gathu Nyaga, The Effects of Cleaning Technique on Aluminium Leaching from Aluminium Cookware, J. of The Kenya Chemical Society J. of The Kenya Chemical Society 2004, 2(1): 4.
• Wanjau Ruth, Jiang Zu-cheng, Hu Bin, Qin Yong-chao, Wu Ying-liang, Zhu Xia-shi, Simultaneous Determination of Trace Rare Earth Elements and Other Elements in High purity Terbium Oxide (Tb4O7) by ICP-AES After HPLC Separation Using P507 Resin, Wuhan Journal of Natural Sciences, 2002, 7(2): 221
• Ruth Wanjau, Jiang Zucheng*, Hu Bin, Shuai Qin, Qin Yongchao, wang Lei, Determination of Non-Rare Earth Imputities in High purity Lanthanum Oxide by Inductively Coupled Plasma Atomic Emission Spectrometry after HPLC Separation Using P507 Resin, J. Rare Earths, 2001, 19: 299.
• Shuai Qin, Hu Bin, Qin Yongchao, Ruth Wanjau, Jiang Zucheng, Deatermination of Trace Rare Earth Impurities in High –purity Cerium Oxide by Using electrothermal Vaporization/ICP-AES ater HPLC Separation with 2-ethylhexyl hydrogen 2-ethylhexyl phosphonate resin as Stationary Phase, J. Anal. Atom. Spectrom., 2000, 15: 1413.

Conferences

1. KU Industrial and Analytical Club Seminar, 11th Oct. 2008.
2. Kenyatta University/Makerere University Joint Post Graduate Seminar 9- 10th Sept, 2008 KU, AVU Hall
3. The 20th International Conference on Education-Satellite Meeting at UON;
4. The Relevance of Chemistryin a global Society. 11-12th Aug. 2008
5. KCS Nairobi Chapter Seminar/Education Day, 30th Aug. 2008.-KU, AVU Hall
6. National Science Congress Seminar and Competitions, Embu, Kangaru Girls’-5th-7th June, 2008
7. Intellectual Property Rights, April 2008, KU, KENYA
8. Pan Africa Chemistry (PAC) network; Biodiversity Conference (10-12 Sept. 2008), UON, Nairobi