Results 21 to 30 of about 255,540 (312)

Biocatalyst Screening with a Twist: Application of Oxygen Sensors Integrated in Microchannels for Screening Whole Cell Biocatalyst Variants

Bioengineering, 2018
Selective oxidative functionalization of molecules is a highly relevant and often demanding reaction in organic chemistry. The use of biocatalysts allows the stereo- and regioselective introduction of oxygen molecules in organic compounds at milder ...
Ana C. Fernandes, Julia M. Halder, Bettina M. Nestl, Bernhard Hauer, Krist V. Gernaey, Ulrich Krühne   +5 more
doaj   +1 more source

Antioxidant assays - consistent findings from FRAP and ORAC reveal a negative impact of organic cultivation on antioxidant potential in spinach but not watercress or rocket leaves [PDF]

, 2013
Watercress (Rorippa nasturtium-aquaticum), wild rocket (Diplotaxis tenuifolia), and spinach (Spinacia oleracea) are commercial crops reported to have high concentrations of antioxidants, possibly contributing to disease prevention following human ...
Mazzer, Alice, Clarkson, Graham J.J., Clarkson, Graham JJ, Payne, Adrienne C., Payne, Adrienne C, Taylor, Gail   +5 more
core   +1 more source

Volatile aldehydes in libraries and archives [PDF]

, 2010
Volatile aldehydes are produced during degradation of paper-based materials. This may result in their accumulation in archival and library repositories. However, no systematic study has been performed so far.
Kolar, J., de Bruin, G., Irena Kralj Cigić, Gerrit de Bruin, Fenech, Ann, Levart, A., Fenech, A., Kralj Cigić, I., Levart, Alenka, Jana Kolar, Ntanos, Konstantinos, May Cassar, Cigic, Irena Kralj, Gibson, L.T., Ntanos, K., Kolar, Jana, Matija Strlič, Cassar, M., Konstantinos Ntanos, Gibson, Lorraine T., Lorraine T. Gibson, de Bruin, Gerrit, Cassar, May, Ann Fenech, Alenka Levart, Strlič, M.   +25 more
core   +1 more source

The effect of biological treatment methods on the concentration of carbonaceous pollutants in the slaughterhouse wastewater: A systematic review

Case Studies in Chemical and Environmental Engineering, 2023
The systematic review conducted in this study aimed to investigate the effect of biological methods of slaughterhouse wastewater treatment (SWWT) on reducing carbonaceous pollution concentration in the effluent.
Arash Derakhshan, Roshanak Rezaei Kalantari, Mahdi Farzadkia, Amir Tiyuri, Ali Esrafili   +4 more
doaj   +1 more source

Aqueous Systems of Dissolved Oxygen in Reservoir [PDF]

E3S Web of Conferences, 2021
Oxygen plays a crucial role in aquatic ecosystem particularly for supporting aquaculture and hydropower. In freshwater, importance of oxygen is for metabolic respiration and balance for heterotrophic organisms. Oxygen is also involved in various chemical
Liqoarobby R, Sunardi, Suparman Y, Fadilah K   +3 more
doaj   +1 more source

THE DETERMINATION OF OXYGEN IN ORGANIC COMPOUNDS. [SECOND PAPER.] [PDF]

Journal of the American Chemical Society, 1914
n ...
openaire   +2 more sources

Mikro-Determination of Oxygen in Organic Compounds

Journal of the agricultural chemical society of Japan, 1954
There are many difficulties in the direct determination of oxygen by the method of UNTERZAUCHER. In this modification, the CO produced by the high temperature-carbon was oxidized with CuO (oxidation-furnace shown in Fig. 1. E) and the CO2 was determined gravimetrically. The temperature of the oxidation furnace was fixed at 235° (Fig. 4).
Tetsuro KONO, Enoki HAYASHI, Michiko NAKAYAMA, Keiko SATO, Mizue SUZUKI, Ikuko ISOBE   +5 more
openaire   +3 more sources

Development of nanostructured catalysts for catalytic oxidative water purification from organic impurities, including phenolic compounds

Chimica Techno Acta, 2023
The purpose of this work was to create magnetic nanocatalysts that could be used for the oxidation of organic water pollutants – phenol and its derivatives – and to determine the physicochemical characteristics of the catalysts.
Larissa R. Sassykova, Binara T. Dossumova, Madina S. Ilmuratova, Tatyana V. Shakiyeva, Bedelzhan B. Baizhomartov, Albina R. Sassykova, Zhanar M. Zhaxibayeva, Tleutai S. Abildin   +7 more
doaj   +1 more source

Temperature dependence of singlet oxygen generation by different photosensitizers [PDF]

EPJ Web of Conferences, 2019
The temperature dependences of the lifetimes and the efficiency of singlet oxygen generation for a set of compounds (porphyrins, metalloporphyrins, porphycene, terrylene etc.) has been measured and characterized. Based on the character of the temperature
Starukhin Aleksander, Gorski Aleksander, Dobkowski Jacek   +2 more
doaj   +1 more source

Atmospheric organic matter in clouds: exact masses and molecular formula identification using ultrahigh-resolution FT-ICR mass spectrometry [PDF]

Atmospheric Chemistry and Physics, 2013
Clouds alter the composition of atmospheric aerosol by acting as a medium for interactions between gas- and particulate-phase substances. To determine the cloud water atmospheric organic matter (AOM) composition and study the cloud processing of aerosols,
Y. Zhao, A. G. Hallar, L. R. Mazzoleni
doaj   +1 more source