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## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a βFull Textβ option. The original article is trackable v
## Abstract Reactive crystallization of calcium oxalate was investigated in the presence of amino acids, proteins and carboxylic acids at different pH and temperatures. Average particle size, filtration rates of calcium oxalate crystals obtained in the absence and presence of additives were determi
N M R studies were conducted on the a-COOH groups of the amino acids Val, Leu, Ile, His and Pro and on the y-COOH group of Glu. Limit chemical shifts, downfield from external water, were 249-257 ppm in aqueous solution at low pH, and 234-243 ppm in HS0,F. The relative nuclear screening order for a-C