Determination of alpha-Alanine by Ninhydrin Oxidation.
نویسندگان
چکیده
منابع مشابه
Determination of certain amino-acids by ninhydrin oxidation to volatile aldehydes.
The quantitative determination of amino-acids in a small sample is an important aim in protein research in its present stage. Especially in the U.S.A. and in Great Britain great advances have been made in this field during recent years. In this connexion the lecture by Chibnall (1946) may be cited. Nevertheless, the elucidation ofthe amino-acid composition of proteins is still a difficult task ...
متن کاملdetermination of olanzapine and thiourea using electrodes modified by dna and film of copper-cobalt hexacyanoferrate & investigation of electro-oxidation of some catechol derivatives in the presence of 4-phenylsemicarbazid
چکیده هدف از این کار بررسی الکترواکسیداسیون کتکول و مشتقات آن در حضور 4-فنیل سمی کاربامازید بوده است اکسیداسیون کتکولها ترکیبات نا پایدار کینونها را تولید می کنند که این ترکیبات می تواند در واکنش مایکل بعنوان پذیرنده نوکلئوفیل عمل نمایند. در ادامه اکسایش کتکولهای (a-c1) را درحضور 4-فنیل سمی کاربامازید در محلول آب/استونیتریل (90/10)بوسیله ولتامتری چرخه ای و کولن متری در پتانسیل ثابت مورد بررسی ...
15 صفحه اولModification of hemoglobin by ninhydrin.
The Strecker degradation reaction was evaluated as a means of modifying hemoglobin in vitro, utilizing ninhydrin as a model compound. Ninhydrin led to modification of hemoglobin (when incubated with hemoglobin or red cells) at physiologic temperature and pH. Isoelectric focusing documented the formation of new hemoglobin bands, all with decreased (more negative) isoelectric points that hemoglob...
متن کاملThe quantitative determination of proline and pipecolic acid with ninhydrin.
In recent years, a number of photometric methods for the quantitative determination of ar-amino acids have been introduced (1, 2). These methods, based on reaction with ninhydrin in aqueous solution, are less satisfactory for the determination of imino acids.1 Grassmann and von Atnim (3) described reaction products of ninhydrin with imino acids and have suggested that these might be of use for ...
متن کاملAlanine synthesis and carbohydrate oxidation by smooth Brucella abortus.
Although the metabolism of many bacterial species has been studied intensively, adequate knowledge of the metabolic activity of pathogenic organisms, including Brucella, is lacking. The biochemistry d physiology of Bruce>a recently have been summarized by Hoyer (1950). Goodlow et al. (1950) have demonstrated a direct correlation between alanine production and the establishment of nonsmooth vari...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Acta Chemica Scandinavica
سال: 1947
ISSN: 0904-213X
DOI: 10.3891/acta.chem.scand.01-0854