Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Vaughan S, Langford"'
Publikováno v:
Analytica, Vol 5, Iss 2, Pp 153-169 (2024)
Personal care products (PCPs) are intended for regular application by consumers and therefore assuring the safety of these products is very important. Recently, benzene contamination has been highlighted in certain PCPs. The present study applies sel
Externí odkaz:
https://doaj.org/article/caac612d220446b89ccee5f45d8027ce
Publikováno v:
AppliedChem, Vol 4, Iss 1, Pp 107-121 (2024)
Since the initial 2018 recall of angiotensin receptor blockers due to unacceptable levels of mutagenic N-nitrosodimethylamine (NDMA) impurity, numerous drug products delivering diverse active pharmaceutical ingredients (APIs) have been recalled. Regu
Externí odkaz:
https://doaj.org/article/414bd5f2a9a344cc98b6e96bd7a399d8
Publikováno v:
Analytica, Vol 4, Iss 3, Pp 313-335 (2023)
Procedures for determination of the residual solvent and volatile impurity content in pharmaceutical products usually rely on dissolution in a solvent, followed by headspace-gas chromatography (HS-GC) analysis. Whereas chromatographic systems can uti
Externí odkaz:
https://doaj.org/article/c541cbd4a2534aca8d9ebd72d6db4b95
Publikováno v:
AppliedChem, Vol 3, Iss 2, Pp 290-302 (2023)
Residual solvents in pharmaceutical excipients, active pharmaceutical ingredients (APIs), and finished products are usually analyzed using gas chromatography (GC)-based techniques according to a pharmacopeial monograph, such as the United States Phar
Externí odkaz:
https://doaj.org/article/4b7efb769caa4bc994ba7296c0281132
Autor:
Colin Hastie, Adrian Thompson, Mark Perkins, Vaughan S. Langford, Michael Eddleston, Natalie ZM. Homer
Publikováno v:
ACS Omega, Vol 6, Iss 48, Pp 32818-32822 (2021)
Externí odkaz:
https://doaj.org/article/c4fe64ba03ab4aad9e4b59e166585ffb
Autor:
Vaughan S. Langford
Publikováno v:
Chemosensors, Vol 11, Iss 2, p 111 (2023)
The human olfactory system is highly attuned to detection of a wide range of volatile organic compounds (VOCs), but the sensitivity varies considerably based on chemical functionality. Whereas most humans can appreciate the sensory properties of cert
Externí odkaz:
https://doaj.org/article/7c717c2564aa443187bf14e7835f7a25
Autor:
Vaughan S. Langford, Mark J. Perkins
Publikováno v:
LCGC North America. :38-41
Sample preparation for headspace analysis of volatile organic compounds (VOCs) by gas chromatography (GC) is well understood. Newer direct‑injection mass spectrometry (DIMS) techniques have found application in headspace analysis, but with some nec
Autor:
Vaughan S. Langford
Publikováno v:
LCGC North America. :174-179
Exposure to volatile organic compounds (VOCs) at low parts per billion (ppb) concentrations (by volume, ppbV) in ambient air is increasingly being recognized as a health risk. Furthermore, VOCs contribute to the formation of photochemical smog and pa
Publikováno v:
Mass Spectrometry Reviews.
Autor:
Mark J. Perkins, Vaughan S. Langford
Publikováno v:
Environments; Volume 9; Issue 10; Pages: 124
Harmful volatile organic compounds (VOCs) are present in drinking water due to anthropogenic activities, such as oil refining (e.g., benzene) and disinfection (e.g., the so-called trihalomethanes, THMs). Gas chromatography (GC)-based techniques are w