Results 21 to 30 of about 2,050,498 (282)

Microbial volatile fingerprints: potential use for soil/water diagnostics and correlation with traditional microbial parameters [PDF]

, 2007
This project used an electronic nose (E-nose) system composed of an array of 14 nonspecific conducting polymer sensors for soil and water diagnostics, based on qualitative microbial volatile production patterns. It tested the feasibility of using soil
Bastos, Ana Catarina
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

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

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

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 of the Cyanophyceae – A Review

Water Science and Technology, 1983
A relationship between blue-green algae and off-flavours in water was reported as early as 1883. Continuing research has shown that two metabolites, geosmin and methylisoborneol are major contributors to unpalatable flavours in water and aquatic organisms.
Slater, G. P., Blok, V. C.
openaire   +1 more source

Impacts of synoptic circulation types on nocturnal ozone increase in the North China Plain: meteorological drivers and physical mechanisms [PDF]

Atmospheric Chemistry and Physics
Nocturnal ozone (O3) increase (NOI) has become common worldwide, raising the risk of O3 pollution. While weather types serve as critical drivers of NOI, their specific dynamic influences remain poorly understood. Using ground observations and reanalysis
H. Wang, L. Fan, L. Fan, L. Fan, L. Fan, X. Deng, H. Huang, H. Huang, H. Huang, H. Huang, D. Ye, D. Ye, D. Ye, D. Ye   +13 more
doaj   +1 more source

LIV.—Volatile platinum compounds [PDF]

J. Chem. Soc., Trans., 1891
n ...
openaire   +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