Search Results - "Angeyo, H. K."

Direct rapid analysis of trace bioavailable soil macronutrients by chemometrics-assisted energy dispersive X-ray fluorescence and scattering spectrometry by Kaniu, M.I., Angeyo, K.H., Mwala, A.K., Mangala, M.J.

“…[Display omitted] ► Chemometrics-assisted EDXRFS spectroscopy realizes direct, rapid and accurate analysis of trace bioavailable macronutrients in soils. ► The…”
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Energy dispersive X-ray fluorescence and scattering assessment of soil quality via partial least squares and artificial neural networks analytical modeling approaches by Kaniu, M.I., Angeyo, K.H., Mwala, A.K., Mwangi, F.K.

“…Soil quality assessment (SQA) calls for rapid, simple and affordable but accurate analysis of soil quality indicators (SQIs). Routine methods of soil analysis…”
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Multielemental Analysis of Migori (Southwest, Kenya) Artisanal Gold Mine Ores and Sediments by EDX-ray Fluorescence Technique: Implications of Occupational Exposure and Environmental Impact by Odumo, O. B, Mustapha, A. O, Patel, J. P, Angeyo, H. K

“…The results of heavy element profiling of the gold ores and sediments associated with the artisanal gold mining activities of the Migori gold belt of…”
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Quantitative modelling towards trace spectroanalysis of dielectrics by sliding spark plasma by Angeyo, H. K., Golloch, A.

“…A consistent theme in trace analytical atomic spectroscopy is the search for methods of efficient atomization and excitation of sample matrices in solid form -…”
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Direct rapid quality assurance analysis of complex matrix materials: A chemometrics enabled energy dispersive X-ray fluorescence and scattering spectrometry application by Angeyo, H.K., Gari, S.

“…Compared to energy dispersive X-ray fluorescence (EDXRF) that is limited to analysis of elements (Z ≥ 13) via fluorescence and which is hardly direct, energy…”
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Chemometrics aided energy dispersive X-ray fluorescence and scattering for diagnostic modeling of trace biometals as cancer biomarkers by Okonda, J.J., Angeyo, H.K., Dehayem-Kamadjeu, A., Rogena, A.E.

“…Direct analysis of biometals in biomedical samples by energy dispersive X-ray fluorescence (EDXRF) for disease diagnostics has hardly been fully explored due…”
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Rapid in-situ radiometric assessment of the Mrima-Kiruku high background radiation anomaly complex of Kenya by Kaniu, M.I., Angeyo, H.K., Darby, I.G., Muia, L.M.

“…This paper presents the radiometric survey results of the Mrima-Kiruku high background radiation (HBR) anomaly complex of south coastal Kenya. Utilizing a…”
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A nested multivariate chemometrics based calibration strategy for direct trace biometal analysis in soft tissue utilizing Energy Dispersive X-Ray Fluorescence (EDXRF) and scattering spectrometry by Okonda, J.J., Angeyo, K.H., Mangala, J.M., Kisia, S.M.

“…Compton scatter-modulated fluorescence and multivariate chemometric (artificial neural network (ANN) and principal component regression (PCR)) calibration…”
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Challenges in rapid soil quality assessment and opportunities presented by multivariate chemometric energy dispersive X-ray fluorescence and scattering spectroscopy by Kaniu, M.I., Angeyo, K.H.

“…There is, especially in precision agriculture, an increasing demand world over for affordable sensors for in situ (field deployable) soil quality assessment…”
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Occurrence and multivariate exploratory analysis of the natural radioactivity anomaly in the south coastal region of Kenya by Kaniu, M.I., Angeyo, K.H., Darby, I.G.

“…Characterized by a variety of rock formations, namely alkaline, igneous and sedimentary that contain significant deposits of monazite and pyrochlore ores, the…”
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Feasibility for direct rapid energy dispersive X-ray fluorescence (EDXRF) and scattering analysis of complex matrix liquids by partial least squares by Angeyo, K.H., Gari, S., Mustapha, A.O., Mangala, J.M.

“…The greatest challenge to material characterization by XRF technique is encountered in direct trace analysis of complex matrices. We exploited partial least…”
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Laser induced breakdown spectroscopy and characterization of environmental matrices utilizing multivariate chemometrics by Mukhono, P.M., Angeyo, K.H., Dehayem-Kamadjeu, A., Kaduki, K.A.

“…We exploited multivariate chemometric methods to reduce the spectral complexity and to retrieve trace heavy metal analyte concentration signatures directly…”
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Investigation of Radiative Characteristics of the Kenyan Atmosphere due to Aerosols Using Sun Spectrophotometry Measurements and the COART Model by Makokha, J.W., Angeyo, H.K.

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Characterization of sliding spark plasma source for direct trace spectronalysis by Angeyo, H. K., Golloch, A.

“…The sliding spark plasma - which is produced via ablation of a dielectric material enforced between a pair of electrodes by a pulsed high-voltage discharge…”
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Principal component analysis-assisted energy dispersive X-ray fluorescence spectroscopy for non-invasive quality assurance characterization of complex matrix materials by Angeyo, K. H., Gari, S., Mangala, J. M., Mustapha, A. O.

“…The analytical challenges in direct quality assurance analysis of complex matrices (extreme matrix effects, spectral overlap, poor signal‐to‐noise ratio (SNR)…”
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Natural radioactivity and external dose in the high background radiation area of Lambwe East,Southwestern Kenya by Achola, S O, Patel, J P, Mustapha, A O, Angeyo, H K

“…Absorbed dose rates around the North and South Ruri hills in Lambwe east, southwestern Kenya were measured using survey meters. The area lies roughly between…”
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Feasibility for chemometric energy dispersive X-ray fluorescence and scattering (EDXRFS) spectroscopy method for rapid soil quality assessment by Kaniu, M. I., Angeyo, K. H., Mangala, M. J., Mwala, A. K., Bartilol, S. K.

“…Soil quality assessment (SQA) is important for modulating agricultural productivity and thus requires simple and rapid analysis of soil (macro & micro)…”
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Radiological survey and assessment of associated activity concentration of the naturally occurring radioactive materials (NORM) in the Migori artisanal gold mining belt of southern Nyanza, Kenya by Odumo, O.B., Mustapha, A.O., Patel, J.P., Angeyo, H.K.

“…A radiological survey and assessment was carried out at selected sites (Osiri, Mikei, Masara and Macalder) in the Migori gold mines of southern Nyanza, Kenya…”
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Energy Dispersive X-ray Fluorescence Analysis of Mine Waters from the Migori Gold Mining Belt in Southern Nyanza, Kenya by Odumo, O. B., Mustapha, A. O., Patel, J. P., Angeyo, H. K.

“…Analyses of water samples from Mikei, Osiri, Masara and Macalder (Makalda) gold mines of the Migori gold mining belt of Southwestern Kenya were done to…”
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Feasibility for early cancer diagnostics by machine learning enabled synchrotron radiation based micro X-ray fluorescence imaging of trace biometals as cancer biomarkers by Okonda, J.J., Angeyo, H.K., Dehayem-Kamadjeu, A., Rogena, A.E.

“…Trace quantitative spectroscopic imaging has the potential to provide the location and distribution of trace biometals in a biological sample for disease…”
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