منابع مشابه
A Semi-micro Method for the Determination of Reducing Sugars.
The MUNSON-WALKER method (3) with the modification of BERTRAND (1) has long been used for the determination of reducing sugars in plant extracts. The large amiiounts of solutions required by this method, however, make necessary the frequent preparation and standardization of solutions, which is inconvenient when large numbers of determinations are being made over an extended period of time. For...
متن کاملSemi-micro Determination of Ferro Us Sulphide in Shales
A new method is described for determining in shales the amount of sulphides that dissolve in dilute hydrochloric acid. 1he samples are treated with hydrochloric acid under vacuum, and the hydrogen sulphide evolved is absorbed in potassium hydroxide and titrated with potassium _~'~ermanganate. The analytical results are expressed as FeS. INTRODUCTION During a study of the distribution of the sul...
متن کاملSemi-micro Estimation of Reducing Sugars.
The estimation of sugars is a matter of interest to every worker engaged in the study of carbohydrate metabolism and related problems. In order to be of any real value a method must not only allow the determination of relatively small amounts of sugars with sufficient accuracy, but should also be rapid, and thus permit of a large number of determinations being carried out in a short time. Semi-...
متن کامل56 . the Micro - Determination of Potassium
THE determination of potassium is more troublesome than that of any other biologically important cation; at the same time there are many conditions involving variations in the electrolyte content ofthe body fluids in which accurate estimations of potassium are desirable. It therefore appeared worth while to try to devise an analytical method for potassium which should be simpler than those at p...
متن کاملMicro-determination of soluble silica in urine.
Silicon may be determined in solution by the spectrophotometric method of Dienert & Wandenbulche (1923), as modified by King & Stantial (1933). This involves the formation of the yellow silicomolybdate and the reduction of this complex to molybdenum blue by 1-amino-2-naphthol-4sulphonic acid reagent. Measurement of this colour provides a means of determining silicon. A disadvantage of this meth...
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ژورنال
عنوان ژورنال: Sen'i Gakkaishi
سال: 1951
ISSN: 0037-9875,1884-2259
DOI: 10.2115/fiber.7.95