ZIRCONYL CITRATE
نویسندگان
چکیده
منابع مشابه
Citrate in urine determined with a new citrate lyase method.
An enzyme-spectrophotometric method to determine citrate in biological fluids is proposed, based on citrate lyase-catalyzed and phenylhydrazine reactions. The enzyme converts citrate into oxaloacetate, which, in the presence of phenylhydrazine, is transformed into the corresponding phenylhydrazone. The ultraviolet-absorbing product is determined by absorbance measurement at 330 nm. The method i...
متن کاملHigh Surface Area Solids Obtained by Reaction of Montmorillonite with Zirconyl Chloride
-Exchange reactions of Na-montmorillonite with zirconyl chloride solutions give products with basal spacings near 18 A which are stable to 500~ and have surface areas of the order of 300-400 m2/g. The Na ions are exchanged with tetrameric hydroxy cations [Zr4(OH)I( nH~O] 2+. The high surface area is attributed to the porosity formed by stable zirconium oxide" pillars" formed by dehydroxylatlon ...
متن کاملThe Citrate Cleavage Enzyme
This enzyme is widely distributed in animal tissues and has been partially purified from pigeon liver (1) and e.xtensively purified from chicken liver (2). Because of the complexity of the overall reaction, we attempted at first to fractionate the activity into more than one protein fraction. The results of these earlier studies led to the conclusion that one protein component or tightly bound ...
متن کاملTrisodium citrate, Na3(C6H5O7)
The crystal structure of anhydrous tris-odium citrate, Na3(C6H5O7), has been solved and refined using synchrotron X-ray powder diffraction data, and optimized using density functional theory (DFT). There are two independent five-coordinate Na(+) and one six-coordinate Na(+) cations in the asymmetric unit. The [NaO5] and [NaO6] polyhedra share edges and corners to form a three-dimensional framew...
متن کاملThe Citrate Cleavage Enzyme
This enzyme is widely distributed in animal tissues and has been partially purified from pigeon liver (1) and e.xtensively purified from chicken liver (2). Because of the complexity of the overall reaction, we attempted at first to fractionate the activity into more than one protein fraction. The results of these earlier studies led to the conclusion that one protein component or tightly bound ...
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ژورنال
عنوان ژورنال: Journal of the American Chemical Society
سال: 1922
ISSN: 0002-7863,1520-5126
DOI: 10.1021/ja01429a012