Results 21 to 30 of about 27,815,460 (250)

Determination of dietary exposure and extraction efficiency of nitrosamine from cooked meat

open access: yesCurrent Research in Food Science, 2022
Meat products are claimed to be a source of carcinogenic nitrosamines (NAs) exposure in food. In this study, dietary exposure of six nitrosamines: N-nitrosodimethylamine (NDMA), N-nitrosodiethylamine (NDEA), N-nitrosopyrrolidine (NPYR), N ...
Abu Tareq Mohammad Abdullah   +4 more
doaj   +1 more source

Simultaneous determination of 10 N-nitrosamines in drinking water by tandem solid phase extraction-gas chromatography tandem mass spectrometry

open access: yes环境与职业医学, 2022
BackgroundN-nitrosamines, a group of by-products of drinking water disinfection, have strong cytotoxicity to mammals. N-nitrosamines in drinking water are at the ng·L−1 level, and its accurate qualitative and quantitative analysis is difficult, so it is ...
Dengkun LI   +5 more
doaj   +1 more source

Occurrence and transport of N-nitrosamines in the urban water systems of the Pearl River Delta, southern China.

open access: yesScience of the Total Environment, 2023
The discharge of substantial amounts of N-nitrosamines-contained wastewater into receiving rivers can significantly deteriorate water quality, as these carcinogenic compounds can be easily transported into groundwater and drinking water systems.
Wen-Wen Chen   +9 more
semanticscholar   +1 more source

Lipid metabolism disorders contribute to hepatotoxicity of ICR mice induced by nitrosamines exposure

open access: yesEnvironment International, 2022
Health risks caused by crucial environmental carcinogens N-nitrosamines triggered ubiquitous attention. As the liver exerted vital function through metabolic process, lipid metabolism disorders have been confirmed as potential drivers for toxicological ...
Hu Zhang   +9 more
doaj   +1 more source

Permitted daily exposure limits for noteworthy N‐nitrosamines

open access: yesEnvironmental and Molecular Mutagenesis, 2021
A genotoxic carcinogen, N‐nitrosodimethylamine (NDMA), was detected as a synthesis impurity in some valsartan drugs in 2018, and other N‐nitrosamines, such as N‐nitrosodiethylamine (NDEA), were later detected in other sartan products.
George E. Johnson   +11 more
semanticscholar   +1 more source

Use of the bacterial reverse mutation assay to predict carcinogenicity of N-nitrosamines.

open access: yesRegulatory toxicology and pharmacology : RTP, 2022
Under ICH M7, impurities are assessed using the bacterial reverse mutation assay (i.e., Ames test) when predicted positive using in silico methodologies followed by expert review.
A. Trejo-Martin   +18 more
semanticscholar   +1 more source

The EU Response to the Presence of Nitrosamine Impurities in Medicines

open access: yesFrontiers in Medicine, 2021
The unexpected detection of nitrosamine impurities in human medicines has recently seen global regulators act to understand the risks of these contaminations to patients and to limit their presence.
Robin Ruepp   +7 more
doaj   +1 more source

Nitrosamines: A review of formation pathways, precursors, control, and occurrence in drinking water [PDF]

open access: yesMATEC Web of Conferences, 2019
Nitrogenous disinfection by-products (N-DBPs) are emerging by-products that may be present in drinking water as by-products of water treatment plant (WTP) operations.
Meadows Maxwell   +3 more
doaj   +1 more source

Determination of 12 Nitrosamines Residues in Milk by Emulsification/Demulsification Method Coupled with Gas Chromatography Tandem Mass Spectrometry

open access: yesShipin gongye ke-ji, 2023
Based on the emulsification/demulsification method, a gas chromatography tandem mass spectrometry method was established for the quantitative determination of 12 nitrosamines in milk.
Wenfeng TONG   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy