Results 21 to 30 of about 1,915,802 (275)

Comparative Study of Volatile Compounds and Expression of Related Genes in Fruit from Two Apple Cultivars during Different Developmental Stages

Molecules, 2021
Aromatic volatile compounds are important contributors to fruit quality that vary among different cultivars. Herein, headspace solid-phase microextraction coupled with gas chromatography-mass spectrometry was used to determine changes in volatile ...
Shuaishuai Feng, Chengtai Yan, Tianhao Zhang, Miaomiao Ji, Ru Tao, Hua Gao   +5 more
doaj   +1 more source

Development of improved methods for the characterisation of organic chemicals emitted into indoor air by building and furnishing products [PDF]

, 2013
A wide range of organic compounds are released from building and furnishing products and these have the potential to adversely affect indoor air quality.
Brown, Veronica M.
core   +7 more sources

Analysis of Volatile Compounds in Different Varieties of Plum Fruits Based on Headspace Solid-Phase Microextraction-Gas Chromatography-Mass Spectrometry Technique

Horticulturae, 2023
To investigate the differences in the volatile compounds of plum fruit samples from different cultivars, the volatile compounds of the ‘Fengtang’ plum, ‘Kongxin’ plum, and ‘Cuihong’ plum fruits were analyzed using headspace solid-phase microextraction ...
Qin Zhang, Shouliang Zhu, Xin Lin, Junsen Peng, Dengcan Luo, Xuan Wan, Yun Zhang, Xiaoqing Dong, Yuhua Ma   +8 more
doaj   +1 more source

Variations, sources, and effects on ozone formation of VOCs during ozone episodes in 13 cities in China

Frontiers in Environmental Science, 2023
In recent years, ozone (O3) pollution has worsened in China and contributes frequently to air pollution problems. To support the implementation of coordinated control for ozone and fine particulate matter, it is essential to study the chemical ...
Danying Shan, Danying Shan, Zhenyu Du, Zhenyu Du, Ting Zhang, Ting Zhang, Xiulan Zhang, Xiulan Zhang, Guan Cao, Guan Cao, Zirui Liu, Zhixiao Yao, Zhixiao Yao, Ka Tang, Ka Tang, Siyuan Liang   +15 more
doaj   +1 more source

Analysis of volatile organic compounds in breath as a potential diagnostic modality in disease monitoring [PDF]

, 2011
The use of breath odours in medical diagnosis dates back to classical times, though in its modern form the technique is only a few decades old. There are several breath tests in common clinical use, though all of them involve administration of a known or
Patel, Mitesh Kantilal
core   +7 more sources

Time-lapse synchrotron X-ray diffraction to monitor conservation coatings for heritage lead in atmospheres polluted with oak-emitted volatile organic compounds [PDF]

, 2014
We discuss the effectiveness of a lead tetradecanoate coating on lead to protect against harmful volatile organic compounds emitted from oak. The oak volatile organic compounds were characterized by GCMS and the major constituent was found to be acetic ...
Banerjee, Dipanjan, Covington, James A, Thomas, Pamela A., Hand, Matthew, Crawford, James B, Dowsett, Mark, Crawford, James B., Westenbrink, Eric W., Thomas, Pam A., Walker, David, Crawford, James, De Keersmaecker, Michel, Covington, James A., Adriaens, Mieke, Dowsett, M. G., Adriaens, Annemie, Grayburn, Rosie, Westenbrink, Eric, Thomas, Pamela A, Hand, M.   +19 more
core   +1 more source

An Analysis of Volatile Compounds and Study of Release Regularity in the Flower of Amorphophallus titanum in Four Periods

Horticulturae, 2023
Titan arum (Amorphophallus titanum) is a rare and endangered plant in the world. It has a huge flower and releases a repulsive odor like a corpse. On the evening of 23 July 2022 (Beijing time), a titan arum in the north garden of the China National ...
Dongyan Liu, Peng Zhang, Donghuan Liu, Yuan Feng, Miao Chi, Ziyu Guo, Xi Wang, Jian Zhong, Ming Sun   +8 more
doaj   +1 more source

Formation of reactive nitrogen species promoted by iron ions through the photochemistry of a neonicotinoid insecticide [PDF]

Atmospheric Chemistry and Physics
Nitrous acid (HONO) and nitrogen oxides (NOx=NO+NO2) are important atmospheric pollutants and key intermediates in the global nitrogen cycle, but their sources and formation mechanisms are still poorly understood.
Z. Ran, Z. Ran, Y. Hu, Y. Hu, Y. Hu, Y. Li, Y. Li, X. Gao, X. Gao, C. Ye, S. Li, X. Lu, Y. Luo, Y. Luo, Y. Luo, S. Gligorovski, S. Gligorovski, S. Gligorovski, J. Liu, J. Liu   +19 more
doaj   +1 more source

Comparative Analysis of Chemical Composition of Zanthoxylum myriacanthum Branches and Leaves by GC-MS and UPLC-Q-Orbitrap HRMS, and Evaluation of Their Antioxidant Activities

Molecules, 2023
Zanthoxylum myriacanthum Wall. ex Hook. f., a plant belonging to the Rutaceae family and the Zanthoxylum genus, is extensively utilized for its medicinal properties and as a culinary seasoning in China and Southeast Asian countries. However, the chemical
Wei Dai, Liangqian Zhang, Liping Dai, Yuan Tian, Xinger Ye, Sina Wang, Jingtao Li, Qi Wang   +7 more
doaj   +1 more source

Volatile compounds present in traditional meat products (charqui and longaniza sausage) in Chile

Brazilian Archives of Biology and Technology, 2012
The aim of this work was to identify and quantify the volatile compounds in five different commercial brands of charqui and longaniza sausages. Volatile compounds were extracted from some samples headspace using solid phase microextraction (SPME).
María Pía Gianelli, Vanessa Salazar, Luis Mojica, Miguel Friz   +3 more
doaj   +1 more source