Results 21 to 30 of about 151,689 (260)

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

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

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

LIV.—Volatile platinum compounds [PDF]

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

Analysis of Caffeine, Chlorogenic Acid, Trigonelline, and Volatile Compounds in Cold Brew Coffee Using High-Performance Liquid Chromatography and Solid-Phase Microextraction—Gas Chromatography-Mass Spectrometry

Foods, 2020
This study investigated the non-volatile and volatile compounds in samples of cold brew (CB) coffee, coffee from a coffee shop (CS), ready-to-drink (RTD) coffee, and brewed coffee from a coffee maker (CM).
JeongAe Heo, Koushik Adhikari, Kap Seong Choi, Jeehyun Lee   +3 more
doaj   +1 more source

Effects of Different Fixation Methods on Volatile Organic Compounds in Fresh Leaves of ‘Qiancha No.1’ Tea [PDF]

Shipin Kexue
To explore the most suitable fixation method for the study of volatile organic compounds in fresh tea leaves, this study compared the effects of five fixation methods-steam fixation, hot air fixation, microwave fixation, vacuum freeze fixation, and ...
YANG Xianfeng, Zhang Tuo, Pang Dewen, Xi Yanan Zeng Tingting WANG Jing, ZHANG Xiaoqin,
doaj   +1 more source

GC-MS analysis of honeybee products derived from medicinal plants

Beni-Suef University Journal of Basic and Applied Sciences, 2023
Background Honeybees provide a wealth of valuable natural products containing health-promoting bioactive compounds, including honey, bee bread, bee venom, bee pollen, propolis, and royal jelly.
Maha Montaser, Ahmed M. Sayed, Mokhtar M. Bishr, Ehab W. Zidan, Mohamed A. Zaki, Hossam M. Hassan, Rabab Mohammed, Mohamed S. Hifnawy   +7 more
doaj   +1 more source

Volatile Compounds of Different Fresh Wet Noodle Cultivars Evaluated by Headspace Solid-Phase Microextraction-Gas Chromatography-Mass Spectrometry [PDF]

Anais da Academia Brasileira de Ciências
This study was carried out to determine the volatile compounds from four samples of fresh wet noodles and the changes in the volatile compound composition during the storage process.
YAN WU, SHAN LIANG, YANYAN ZHENG, MIN ZHANG   +3 more
doaj   +2 more sources

Efficient degradation of sulfamethoxazole using unactivated and biochar-activated peroxymonosulfate: Mechanisms and performance comparison

Water Cycle
Peroxymonosulfate (PMS)-based advanced oxidation processes are widely used in environmental purification. But the intrinsic oxidizing properties of unactivated PMS are often overlooked in pollutant degradation.
Xuhao Liu, Xiaoya Gao, Bingheng Liang, Qingcun Gu, Teng Guo, Jiatian Wang, Xingxin Yang   +6 more
doaj   +1 more source