Analysis of nine nitrosamines relevant to occupational safety by ion mobility spectroscopy and preliminary gas chromatographic separation

Autor: Jana Hinz, Tessema F. Mekonnen, Jonas Bergrath, Savanna Sewell, Yannic Schneck, Michaela Wirtz, Ursula Telgheder

Publikováno v: Journal of Chromatography Open, Vol 4, Iss , Pp 100102- (2023)

Nitrosamines have been identified as a probable human carcinogen and thus are of high concern in many manufacturing industries and various matrices (for example pharmaceutical, cosmetic and food products, workplace air or potable- and wastewater). Th

Externí odkaz: https://doaj.org/article/8125dd4d2a1647f4b1b064392bdb022a

Ultrasonic-assisted extraction and UHPLC determination of ascorbic acid, polyphenols, and half-maximum effective concentration in Citrus medica and Ziziphus spina-christi fruits using multivariate experimental design.

Autor: Belayneh Asfaw T; Department of Chemistry, College of Natural and Computational Sciences, University of Gondar, P.O.Box 196, Gondar, Ethiopia., Getachew Tadesse M; Department of Industrial Chemistry, College of Applied Sciences, Addis Ababa Science and Technology University, P.O.Box 16417, Addis Ababa, Ethiopia.; Center of Excellence for Biotechnology and Bioprocess, Addis Ababa Science and Technology University, P.O.Box 16417, Addis Ababa, Ethiopia., Beshah Tessema F; Department of Chemistry, College of Natural and Computational Sciences, Woldia University, Woldia, Ethiopia., Woldemichael Woldemariam H; Department of Chemical Engineering, College of Engineering, Addis Ababa Science and Technology University, P.O.Box 16417, Addis Ababa, Ethiopia.; Center of Excellence for Biotechnology and Bioprocess, Addis Ababa Science and Technology University, P.O.Box 16417, Addis Ababa, Ethiopia., V Chinchkar A; National Institute of Food Technology Entrepreneurship and Management, Department of Food Science and Technology, Haryana, India., Singh A; National Institute of Food Technology Entrepreneurship and Management, Department of Food Science and Technology, Haryana, India.; Department of Food Technology, Harcourt Butler Technical University, Nawabganj, Kanpur, Uttar Pradesh 208002, India., Upadhyay A; National Institute of Food Technology Entrepreneurship and Management, Department of Food Science and Technology, Haryana, India., Mehari B; Department of Chemistry, College of Natural and Computational Sciences, University of Gondar, P.O.Box 196, Gondar, Ethiopia.

Publikováno v: Food chemistry: X [Food Chem X] 2024 Mar 26; Vol. 22, pp. 101310. Date of Electronic Publication: 2024 Mar 26 (Print Publication: 2024).

Metabolic syndrome and associated factors among outpatients of Jimma University Teaching Hospital

Autor: Abda E, Hamza L, Tessema F, Cheneke W

Publikováno v: Diabetes, Metabolic Syndrome and Obesity, Vol 2016, Iss Issue 1, Pp 47-53 (2016)

Edris Abda,1 Leja Hamza,2 Fasil Tessema,3 Waqtola Cheneke4 1Department of Medicine, College of Medicine and Health Sciences, Madda Walabu University, Bale Robe, 2Department of Internal Medicine, 3Department of Epidemiology, 4Department of Medical Lab

Externí odkaz: https://doaj.org/article/a2be1aeb70054cb79f9c21af6352d2b0

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New Photodegradation Products of the Fungicide Fluopyram: Structural Elucidation and Mechanism Identification

Autor: Tessema F. Mekonnen, Ulrich Panne, Matthias Koch

Publikováno v: Molecules, Vol 23, Iss 11, p 2940 (2018)

Identifying the fate of agrochemicals is important to understand their potential risk for living organisms. We report here new photodegradation products (PPs) of the fungicide fluopyram. The PPs were produced by irradiating a fluopyram standard in 0.

Externí odkaz: https://doaj.org/article/caf4d2453ef043d99af619b29a54f2f0