A MICROTITRATION METHOD FOR THE DETERMINATION OF SMALL AMOUNTS OF CITRIC ACID
نویسندگان
چکیده
منابع مشابه
the innovation of a statistical model to estimate dependable rainfall (dr) and develop it for determination and classification of drought and wet years of iran
آب حاصل از بارش منبع تأمین نیازهای بی شمار جانداران به ویژه انسان است و هرگونه کاهش در کم و کیف آن مستقیماً حیات موجودات زنده را تحت تأثیر منفی قرار می دهد. نوسان سال به سال بارش از ویژگی های اساسی و بسیار مهم بارش های سالانه ایران محسوب می شود که آثار زیان بار آن در تمام عرصه های اقتصادی، اجتماعی و حتی سیاسی- امنیتی به نحوی منعکس می شود. چون میزان آب ناشی از بارش یکی از مولفه های اصلی برنامه ...
15 صفحه اولA microcolorimetric method for the determination of citric acid.
In 1947 we (1) described a microcolorimetric method, with a range of sensitivity from 10 to 60 y, for the determination of citric acid in small samples of blood and urine. This method was based on the conversion of citric acid to pentabromoacetone and on the subsequent reaction between pentabromoacetone and alcoholic sodium iodide with the development of a yellow color complex. Hydrazine sulfat...
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Numerous methods, enzymatic and chemical, have been reported for the determination of small amounts of citric acid in biological fluids. Of the chemical methods the majority involve the conversion of the citric acid to pentabromoacetone, which may be estimated by various gravimetric, titrimetric, or calorimetric procedures. The more recent modifications (l-3) of the met.hod have simplified it a...
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A Method for the Determination of Small Amounts of Lactic Acid
For quantities of lactic acid greater than 10 or 20 mg. the titration method of von Ftirth and Charnass (1) is available. For much smaller quantities, the only methods hitherto proposed have been calorimetric (2). With the disadvantages of calorimetric methods in mind, study was made of a titration method which gives satisfactory results with as little lactic acid as 0.2 mg. Chemical methods fo...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1944
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)51218-7