Results 91 to 100 of about 448,504 (204)

Molecular recognition of organic ammonium ions in solution using synthetic receptors

Beilstein Journal of Organic Chemistry, 2010
Ammonium ions are ubiquitous in chemistry and molecular biology. Considerable efforts have been undertaken to develop synthetic receptors for their selective molecular recognition.
Andreas Späth, Burkhard König
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Chemical characterization of liquefaction products of an inertinite enriched northern Alaska coals [PDF]

, 1989
A Northern Alaskan coal rich in inertinites was further enriched by density gradient separations. The degree of condensation of the enriched coal was estimated to be low, mainly 3 ring.
Mayasandra, Venugopal
core  

Synthesis of dawsonites [PDF]

, 1982
Alkali metal and ammonium dawsonites can be prepared by a nonaqueous process according to which equimolar quantities of the corresponding hydrogen carbonate and aluminum hydroxide in finely divided state are heated together to a tempeature within the ...
Altman, R. L.
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Benzalkonium Chloride Poisoning in Pediatric Patients: Report of Case with a Severe Clinical Course and Literature Review

Toxics
The use of disinfectants, particularly those containing quaternary ammonium compounds (QUACs), has dramatically escalated globally since the coronavirus disease 2019 pandemic.
Viorela Nițescu, Andreea Lescaie, Dora Boghițoiu, Coriolan Ulmeanu   +3 more
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The Use of Tetramethylbenzidine as an Indicator in the Enzymatic Quantitative Determination of Ethonium

Журнал органічної та фармацевтичної хімії
The study considers the possibility of using 3,3',5,5'-tetramethylbenzidine (TMB) as an indicator in the enzymatic analysis for the quantitative determination of quaternary ammonium compounds on the example of ethonium. The feasibility of using TMB as an
Olena V. Kovalska, Mykola Ye. Blazheyevskiy, Vladyslav V. Diadchenko   +2 more
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DNA Nucleobase Synthesis at Titan Atmosphere Analog by Soft X-rays

, 2009
Titan, the largest satellite of Saturn, has an atmosphere chiefly made up of N2 and CH4 and includes traces of many simple organic compounds. This atmosphere also partly consists of haze and aerosol particles which during the last 4.5 gigayears have been
Abbate M., Abe I., Basile B., Coll P., d’Hendecourt L. B., Gerakines P. A., Gibb E. L., Glaser R., Grasset O., Griffith C. A., Gueymard C. A., Imanaka H., Imanaka H., Kerkhof O., Khare B. N., Khare B. N., Khare B. N., Kobayashi K., Kobayashi K., Kobayashi K., Kobayashi K., Lappi S. E., Lorenz R. D., Lowe C. U., McDonald G. D., McGuigan M., Miller S. L., Mitri G., Moore M. H., Neish C. D., Nuevo M., Oró J., Oró J., Oró J., Pietrogrande M. C., Pilling S., Ponnamperuma C., Pullman B., Sagan C., Tran B. N., Tran B. N., Wakamatsu H., Wang F., Yamada Y., Yamanashi H., Yuasa S.   +45 more
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Application of Bioelectrochemical System in Nitrogen Removal via Simultaneous Autotrophic Nitrification and Denitrification from Wastewater

ChemElectroChem
Bioelectrochemical systems (BES) is a new and expanding technology that can simultaneously convert chemical energy into electrical energy by removing nutrients. The present study investigated the BES in removing nitrogen compounds and produce electricity.
Parisa Ebrahimzadeh, Nahid Navidjouy, Hassan Khorsandi, Mostafa Rahimnejad   +3 more
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Distribution of nitrogen compounds in important sections of sugar beets [PDF]

, 2016
In literature the beet is often described as consisting of the following technologically important sections: crown, root and tail. The aim of the study was to determine the distribution of nitrogen compounds in the technologically important beet sections
Antczak-Chrobot, Aneta, Bąk, Paulina, Wojtczak, Maciej   +2 more
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A survey of thermodynamic properties of the compounds of the elements chnops progress report, 1 feb. - 30 jun. 1965 [PDF]

Heat capacities, entropies, enthalpies, and free energies of organic and inorganic compounds of carbon, hydrogen, nitrogen, oxygen, phosphorus, and ...
Armstrong, G. T., Domalski, E. S., Furukawa, G. T., Halow, I., Inscoe, M. N.   +4 more
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Preparation of polymeric nanoparticles using a new polymerizable surfactant

Open Physics, 2011
Bunio Paulina, Zielińska Katarzyna, Chlebicki Jan, Wilk Kazimiera   +3 more
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