Practical physiological chemistry; a book designed for use in courses in practical physiological chemistry in schools of medicine and of science . iss, Jena. Hayems solution has the following formula: Mercuric chloride o. 25 gram. Sodium chloride ^ o. 5 gram. Sodium sulphate 2 . 5 grams. Distilled water 100. o grams. BLOOD ANALYSIS 309 The diluting is done in a small round-boUomed flask as shown in Fig. of these flasks should be kept on hand in a wooden rack which will holdthem in an upright position. Each flask is provided with a paraflined,y)r smoothcork stopper. In the older coun
Practical physiological chemistry; a book designed for use in courses in practical physiological chemistry in schools of medicine and of science . iss, Jena. Hayems solution has the following formula: Mercuric chloride o. 25 gram. Sodium chloride ^ o. 5 gram. Sodium sulphate 2 . 5 grams. Distilled water 100. o grams. BLOOD ANALYSIS 309 The diluting is done in a small round-boUomed flask as shown in Fig. of these flasks should be kept on hand in a wooden rack which will holdthem in an upright position. Each flask is provided with a paraflined,y)r smoothcork stopper. In the older counting chambers the floor of the chamber is circular and thecounting is done in the center of this space. The corpuscles are therefore countedin the center of a capillary, circular film where on account of surface tension theirnumber is slightly greater than elsewhere. This source of error is avoided in thenew counting chamber (Fig. 102) in which the floor is represented by the uppersurface of a piece of glass 25 mm. long and 5 mm. wide which is rounded off at bothends and divided into two portions by a groove mm. wide through the Fig. 99.—BiJRKERs Pipettes, Mixing Flasks and Counting Chamber. At each side of this floor piece, separated from it by a groove is a glass plate( mm. X 21 mm.) of such height that the space between the floor of the celland a cover-glass placed across the plates is mm. A cover-glass 23 and 21 mm. wide with rounded polished edges is used so that the roundedends of the floor piece project beyond it. The chamber is provided with clampsto press the cover-glass firmly upon both plates (Fig. 99). The ruling on each portion of the floor piece is that shown in Fig. 100, whichwill be explained below\ Measuring the Diluting Fluid.—Four thousand nine hundred and seventy-fivecu. mm. of diluting fluid {Ilayenis) are measured out into the diluting flask. Todo this the pipette is filled by suction to slightly above the mark and the rub
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbiochem, bookyear1916
