Results 51 to 60 of about 7,896 (250)

Combating Olive Oil Fraud Using GC–IMS and FGC-Enose

open access: yesLCGC Europe, 2021
The adulteration of high-quality foods is big business. Typical adulteration of olive oil involves the use of other types of oil, such as seed oils or pomace oils, the introduction of re-esterified oils, or the creation of mixtures with refined oils to create a lower quality product that can still be sold at a premium price.
openaire   +2 more sources

The measurement of volatile organic compounds in faeces of piglets as a tool to assess gastrointestinal functionality [PDF]

open access: yes, 2019
There is an increasing interest in developing innovative means to monitor animal health through precision farming. As part of this drive, we have targeted digestive health and in particular the microbiota.
Canet, Estel   +8 more
core   +1 more source

Comparison of the applications of GC-IMS and SPME-GC-MS in the analysis of volatile flavor compounds in strong-flavor Baijiu [PDF]

open access: yesZhongguo niangzao
In order to compare the application differences of solid-phase microextraction-gas chromatography-mass spectrometry (SPME-GC-MS) and gas chromatography-ion mobility spectrometry (GC-IMS) techniques in the detection of flavor compounds in strong-flavor ...
WANG Yihong, ZHENG Jia, ZHU Lizheng, PU Peijuan, WU Yuanxin, YUAN Fang
doaj   +1 more source

基于感官检验和气相色谱-离子迁移谱法分析食用 油脂加工厂污水处理过程的挥发性物质Analysis of volatile compounds in wastewater treatment process in edible oil plant based on sensory examination and GC-IMS

open access: yesZhongguo youzhi, 2023
为高效鉴定食用油脂加工厂污水处理过程的气味组成,采用感官检验以臭阈值量化不同处理工序污水的臭味浓度,并采用气相色谱-离子迁移谱法(GC-IMS)对其挥发性化合物进行分析,并对鉴定出的挥发性化合物进行指纹图谱和主成分分析。结果表明:污水经过处理臭阈值明显降低;GC-IMS鉴定出43种化合物,基本均为含氧有机物,包括酮类、醇类、醛类、酯类、酸类及其他类;总体上各处理工序污水挥发性物质总数和臭阈值的变化规律一致;各处理工序挥发性化合物存在一定差异。综上,GC ...
刘春梅,李思,施钟富,郑绣蒨,刘昌树LIU Chunmei, LI Si, SHI Zhongfu, ZHENG Xiuqian, LIU Changshu
doaj   +1 more source

Chiral Trapped-Headspace GC-QMS-IMS: Boosting Untargeted Benchtop Volatilomics to the Next Level

open access: yesChemosensors
In the field of quality analysis of food and flavoring products, gas chromatography–quadrupole mass spectrometry–ion mobility spectrometry (GC-QMS-IMS) is a powerful technique for the simultaneous detection of volatile organic compounds (VOCs) by both ...
Lukas Bodenbender   +4 more
doaj   +1 more source

Breath-based non-invasive diagnosis of Alzheimer’s disease:A pilot study [PDF]

open access: yes, 2019
Early detection of Alzheimer's disease (AD) will help researchers to better understand the disease and develop improved treatments. Recent developments have thus focused on identifying biomarkers for mild cognitive impairment due to AD (MCI) and AD ...
Clarke, Sophie   +9 more
core   +2 more sources

Discrimination of defective dry-cured Iberian ham determining volatile compounds by non-destructive sampling and gas chromatography [PDF]

open access: yes, 2021
Evaluation of dry-cured Iberian ham quality is carried out by means of the sense of smell of experts and a percentage of these hams are discarded due to odour defects.
Arce, Lourdes   +7 more
core   +1 more source

POM‐Based Water Splitting Catalyst Under Acid Conditions Driven by Its Assembly on Carbon Nanotubes

open access: yesAdvanced Materials, EarlyView.
A newly‐engineered POM‐based electrocatalyst incorporating non‐innocent counter cations exhibits fast kinetics for either the OER or HER under strongly acidic conditions (1 m H2SO4), depending on whether it is assembled on carbon nanotubes (1@CNT) or physically mixed with them (1/CNT). In water‐splitting tests using a two‐electrode setup, these systems
Eugenia P. Quirós‐Díez   +8 more
wiley   +1 more source

A university campus case study [PDF]

open access: yes, 2022
Funding Information: The authors would like to thank Fundação para a Ciência e Tecnologia (FCT - Portugal), Volkswagen Autoeuropa and NMT, S. A. for co-financing of PhD grant PD/BDE/150627/2020, from Doctoral NOVA I4H Program.
Moura, Pedro Catalão   +1 more
core   +2 more sources

Characteristic Volatile Organic Compound Analysis of Different Cistanches Based on HS-GC-IMS

open access: yesMolecules, 2022
Cistanche is a medicinal and food homologous substance with a long history of consumption and medicinal use in China. In order to further understand the volatile organic compound differences between different cistanches, this study selected oil cistanche, blood cistanche and cistanche tubulosa in Xinjiang for HS-GC-IMS volatile organic compounds, and ...
Shiqi Zhou   +6 more
openaire   +3 more sources

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