نتایج جستجو برای: barium carbonate
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Barium (Ba) with CAS number 513-77-9 and atomic number 56 is a soft silvery metallic alkaline earth metal. It has a high chemical reactivity and is never found in nature as a free element. It is highly toxic upon acute and chronic exposures (Bhoelan et al., 2014). Barium has been tested for its toxicity in different studies (Llugany et al., 2000; Langdon, 1994; Akinfieva and Gerasimova, 1984). ...
Discovery of 13C NMR and its application in the biosynthetic pathways prompted the synthesis of several 13C labelled precursors. To investigate the metabolism of phenyllactic acid in the Solanaceae family, the double labelled acid was synthesized from barium carbonate (13C) and sodium syanide (13C)
discovery of 13c nmr and its application in the biosynthetic pathways prompted the synthesis of several 13c labelled precursors. to investigate the metabolism of phenyllactic acid in the solanaceae family, the double labelled acid was synthesized from barium carbonate (13c) and sodium syanide (13c)
For the purpose of estimating a very small amount of carbon dioxide in general biological problems, two pieces of apparatus have been already described.* The principle of the apparatus is as follows : 1. Exceedingly minute quantities of carbon dioxide can be precipitated as barium carbonate on the surface of a small drop of barium hydroxide solution. 2. When a drop of barium hydroxide is expose...
Catalytic hydrogenation of the appropriate pyridine nucleotide coenzymes and their derivatives over palladium supported on barium carbonate in aqueous solution has yielded the following representatives of two novel series of coenzyme analogues: tetrahydronicotinamide adenine dinucleotide, tetrahydronicotinamide mononucleotide, 3-acetyltetrahydropyridine adenine dinucleotide, hexahydronicotinami...
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