Zobrazeno 1 - 10
of 47
pro vyhledávání: '"Ochan Otim"'
Publikováno v:
Chemical Engineering Journal Advances, Vol 18, Iss , Pp 100599- (2024)
The gold standard for recovering residual organochlorine pesticides from wastewater and aqueous environmental matrices is the continuous liquid-liquid extraction (CLLE) technique that requires methylene chloride (CH2Cl2) as solvent at its refluxing t
Externí odkaz:
https://doaj.org/article/d0e04532754a4299a14ac6433414d2cc
Publikováno v:
Toxicology Reports, Vol 10, Iss , Pp 400-408 (2023)
Information about food hygiene and quality in the sub-Saharan African countries remains scarce at a time when many of their citizenry are beginning to acquire the much coveted middle income status. Confounding this are challenges linked to monitoring
Externí odkaz:
https://doaj.org/article/6d6b94ff5ede4d6b99b325db61ae9c32
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
Abstract Algae bloom in coastal waters is partly supported by residual nutrients in treated wastewater (WW) released from coastally located treatment plants. In response, a Chlorella vulgaris-based photobioreactor was recently proposed for lowering n
Externí odkaz:
https://doaj.org/article/16d232521dae4e32bd0daa5a06d319da
Publikováno v:
Environmental Pollutants & Bioavailability, Vol 33, Iss 1, Pp 292-300 (2021)
Food contamination by heavy metals is a health burden in sub-Saharan Africa. Here, we illustrate this burden by quantifying levels of Cd, Cr, Ni, Co, Pb, Fe, Cu and Zn in vegetables from Bushenyi District (Uganda). Results show that cabbage, scarlet
Externí odkaz:
https://doaj.org/article/b7faee8b39c444739b7c76ba6811d962
Autor:
Ochan Otim, Jesus Rocha
Publikováno v:
Scientific Reports, Vol 10, Iss 1, Pp 1-10 (2020)
Abstract The precision and accuracy of quantifying semi-volatile organic compounds (SVOCs) in solution by GC/MS, particularly when volume errors are unpredictable or difficult to control, are improved by utilizing internal standards (IS). Not obvious
Externí odkaz:
https://doaj.org/article/68fe10633b1c4559b4a99163226b23dc
Autor:
Keneth Iceland Kasozi, Yunusu Hamira, Gerald Zirintunda, Khalaf F. Alsharif, Farag M. A. Altalbawy, Justine Ekou, Andrew Tamale, Kevin Matama, Fred Ssempijja, Robert Muyinda, Francis Kawooya, Theophilus Pius, Hellen Kisakye, Paul Bogere, Henry Matovu, Leonard Omadang, Patrick Etiang, Joseph Mbogua, Juma John Ochieng, Lawrence Obado Osuwat, Regan Mujinya, Gaber El-Saber Batiha, Ochan Otim
Publikováno v:
Frontiers in Nutrition, Vol 8 (2021)
In this study, we initiated an effort to generate information about beef safety in Uganda. Our entry point was to assess by atomic absorption spectrophotometry the levels of essential elements copper (Cu), cobalt (Co), iron (Fe) and zinc (Zn), and no
Externí odkaz:
https://doaj.org/article/f6ac342cdce64c77a765fa8b37fe8356
Publikováno v:
Heliyon, Vol 5, Iss 4, Pp e01417- (2019)
Quality control during spirits production and means of authenticating or verifying sources of spirits in the sub-Saharan region of Africa are limited due to lack of resources and the scientific acumen required to develop methodologies for characteriz
Externí odkaz:
https://doaj.org/article/0f83a3253e57475db5303d15c37556fd
Publikováno v:
PLoS ONE, Vol 14, Iss 2, p e0212938 (2019)
The increased mortality rate among the Acoli people of northern Uganda is anecdotally blamed on excessive consumption of cheap and widely available sachet-packaged alcohol in the region. In this paper, we quantify this perceived association by determ
Externí odkaz:
https://doaj.org/article/c398c60886574279a9bcd48f6f2ea212
Autor:
Ochan Otim
Publikováno v:
Canadian Journal of Chemistry.
A while ago, this journal ( Canadian Journal of Chemistry) published a set of seminal studies that revealed the underlying mechanism supporting the widely used 4-aminoantipyrine (4-AAP)-based analytical technique for detecting phenols at low levels i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db19f4ed458f8ba2b9f75fb99f5bbe40
https://doi.org/10.1139/cjc-2022-0239
https://doi.org/10.1139/cjc-2022-0239
Autor:
Ochan Otim
Publikováno v:
Environmental Toxicology and Chemistry. 41:410-425
Sediments and water columns in the Los Angeles Outer Harbor, a major port behind a breakwater, contain DDTs and PCBs from a nearby superfund site and contaminants brought in by ships, boats, stormwater, a river and a wastewater outfall. White croaker
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::69a3fc9ecc64ddab8a06bb179943a4f3
https://doi.org/10.1002/etc.5262
https://doi.org/10.1002/etc.5262