. The Pharmaceutical era. solution of iodine (containing 10 gm. K I per liter)20 with hydriodie acid in the proportion that each 100 contain about 4 cc. of the acid ( sp. gr.;. To a March 4, lSi»7.] THE PHARMACEUTICAL ERA. 271 conroritratod luineous solution of antipyrine (aoUlifiedwith IICI.) cuiitaliRHl ill a j; vial, an excess(nieasureilj of the standard iodine .solution is added, tliefluid which has become turbid is shaken till it hascleared up. The fluid is filtered tliroui;h asbestos intoa liiirette, then in an aliipiot pnrlinn of ihe filtrate the Nexcess of i
. The Pharmaceutical era. solution of iodine (containing 10 gm. K I per liter)20 with hydriodie acid in the proportion that each 100 contain about 4 cc. of the acid ( sp. gr.;. To a March 4, lSi»7.] THE PHARMACEUTICAL ERA. 271 conroritratod luineous solution of antipyrine (aoUlifiedwith IICI.) cuiitaliRHl ill a j; vial, an excess(nieasureilj of the standard iodine .solution is added, tliefluid which has become turbid is shaken till it hascleared up. The fluid is filtered tliroui;h asbestos intoa liiirette, then in an aliipiot pnrlinn of ihe filtrate the Nexcess of iodine is estimated by nieaiis of — thiosul- 10pliate solution. The difference represents the quantityof iodine consumed in the formation of the double coiii-liouiid with antipyrine. Owing to the slight solvenl action of the hydriodicacid for the precipitate and also that the employmentof a large excess of iodine solution causes irregularities,it is advisable to tnakc a few experiments with a kimwnsample of .V ) .—The princi-ple embraced ill this apparatus of Prof. Riegler consistsin securing a complete precipitation of the albumin bymeans of a mixture of equal parts of asaprol and citricacid, then reading off the volume of the precipitate. Thespoon vhich accompaides ihe outfit (see figure) is filledwith the asaprol mixture, which is thrown into thecylinder, then water is added up tf. the mark A, andafter corking, the cylinder is inverted once to secure so-lution of the added i)owder. Then the urine to be exam-ined is added, filling up to the mark U; the cylinder isagain corked and inverted slowly ten times; it is setaside for twenty-four hours, after which the height ofthe precipitate is read off: the nearest liiu with numbercorresijmidiiig indicates the parts per thousand of albu-min. Qualitatively, the addition of 10 to 20 drops of thereagent (.> gm. each of asaprol and citric acid with lOHoc. of water) to about cc. (d the ur
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Keywords: ., bookcentury1800, booksubjectdrugs, booksubjectpharmacy, bookyear1
