. The Biochemical journal, 1912. Biochemistry. 208 BIO-CHEMICAL JOURNAL wliicli contains tlie urine to be examined. As a rule, there is a slig-lit slant on the surface of the deposit. This can he obviated by stopping tlie machine at the end of one or two minutes and turning the tubes through half a circle. But if this be not done—and it is not absolutely necessary, although it makes for greater accuracy—the height of the middle of the meniscus or slant in each tube should be read off and compared. In the above instance the deposit in the tube containing the standard solution was stated to stan
. The Biochemical journal, 1912. Biochemistry. 208 BIO-CHEMICAL JOURNAL wliicli contains tlie urine to be examined. As a rule, there is a slig-lit slant on the surface of the deposit. This can he obviated by stopping tlie machine at the end of one or two minutes and turning the tubes through half a circle. But if this be not done—and it is not absolutely necessary, although it makes for greater accuracy—the height of the middle of the meniscus or slant in each tube should be read off and compared. In the above instance the deposit in the tube containing the standard solution was stated to stand at 10 mm., and that in tube containing the urine at 7 mm., ^'Uec^riufT^. -15 = 5 Fig. 1 consecpiently the urine contains T-lOth or 0 7 of the quantity of calcium in tlie standard solution, which is known to be 0*02 per cent; in other words, the urine contains 0-02 x 0-7 = 0-014 per cent, of calcium. This gives a general equation ^ x — -percentage of calcium in the urine examined, in which U = height in millimetres of precipitate in the urine. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Biochemical Society (Great Britain); University of Liverpool. Biochemical Dept. London [etc. ] Cambridge University Press
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbiochem, bookyear1912
