Results 81 to 90 of about 21,877 (274)
A Study to Validate a Self-Reported Version of the ONS Drug Dependence Questionnaire [PDF]
, 2011 Aim: A prospective study to establish the reliability of a self-completion version of the Office for National Statistics (ONS) questionnaire for assessing drug dependence of substance misuse clients.
Christo G. +17 more
core +1 more source
Journal of the Science of Food and Agriculture, EarlyView.Abstract BACKGROUND Geographical indications (GIs) certify the link between coffee origin and quality, enabling premium pricing and protecting producers. However, the high market value of GI coffees increases their vulnerability to fraud, underscoring the need for reliable and practical authentication methods.
Leticia Tessaro +4 more
wiley +1 more source
Chronoprints: Identifying Samples by Visualizing How They Change over Space and Time. [PDF]
, 2019 The modern tools of chemistry excel at identifying a sample, but the cost, size, complexity, and power consumption of these instruments often preclude their use in resource-limited settings.
Brisk, Philip +4 more
core +3 more sources
Mid‐Infrared Integrated Photonics: Material Platforms and Emerging Applications
Laser &Photonics Reviews, EarlyView.Mid‐infrared (MIR) integrated photonics enables advanced chemical and biological sensing through the unique absorption features of molecules in the 2–20 µm range. This review highlights recent material advances such as chalcogenide glasses, silicon, and graphene and explores MIR applications in environmental monitoring, medical diagnostics ...
Muhammad Ali Butt +2 more
wiley +1 more source
Acharacterization, Antioxidant Properties And Authentication Of Virgin Coconut Oil [PDF]
, 2009 A study on chemical properties and authentication of virgin coconut oil (VCO) was conducted. Chemical properties showed that commercial VCO had iodine value of 4.47 to 8.55, peroxide value of 0.21 to 0.57 meq oxygen/kg, free fatty acid of 0.15 to 0.25 ...
Abdul Manaf, Marina
core
Cold EI—The Way to Improve GC‐MS and Increase Its Range of Applications
Mass Spectrometry Reviews, EarlyView.ABSTRACT Gas chromatography‐mass spectrometry (GC‐MS) with Cold electron ionization (EI) is based on interfacing the GC and MS with a supersonic molecular beam (SMB) along with electron ionization of vibrationally cold sample compounds in the SMB in a contact‐free fly‐through ion source (hence the name Cold EI).
Aviv Amirav +3 more
wiley +1 more source
Shipin yu jixieObjective: This study aims to design a novel approach, utilizing computer vision combining with deep learning, for rapid determination the adulteration in star anise powder.
CHEN Jinxing
doaj +1 more source
Contextual factors among indiscriminate or larger attacks on food or water supplies, 1946-2015 [PDF]
, 2016 This research updates previous inventories of malicious attacks on food and water to include data from 1946 through mid-2015. A systematic search of news reports, databases and previous inventories of poisoning events was undertaken.
Agence France-Presse +20 more
core +1 more source
Multi‐Solvent Suppression Ultrafast 2D COSY for High‐Throughput Wine Screening
Magnetic Resonance in Chemistry, EarlyView.An interleaved ultrafast COSY with multi‐solvent suppression was developed for wine analysis to overcome limitations often associated with 1D 1H NMR (signal overlap) and conventional 2D NMR (long acquisition times) methods. Within an acquisition time of ~20 min, it revealed hidden metabolite peaks and cross peaks for improved annotation and ...
Pia S. Mayer +5 more
wiley +1 more source
Influence of feeding bee colonies on colony strenght and honey authenticity
Acta Agriculturae Slovenica, 2015 For the natural development of bee colonies, there is the need for appropriate nutrition. Lack of natural honey flow must be supplemented by feeding bee colonies with sugar syrups or candy paste.
Andreja KANDOLF BOROVŠAK +5 more
doaj +1 more source