The Journal of laboratory and clinical medicine . d Abderhalden warns specifically such procedure repeatedly. 92 The Journal of Laboratory and Clinical Medicine new set of Erlenmeyer flasks containing each 20 of sterile distilled water,the content of the thimble, as well as the water outside is covered with a layerof toluol which would cover the greater part of the thimble (about 2/3 of itsheight) and the flasks are placed in the incubator having been covered withclean dry glass discs.*^ After 16-18 hours of incubation* the flasks with thimbles are removed fromthe incubator. Now
The Journal of laboratory and clinical medicine . d Abderhalden warns specifically such procedure repeatedly. 92 The Journal of Laboratory and Clinical Medicine new set of Erlenmeyer flasks containing each 20 of sterile distilled water,the content of the thimble, as well as the water outside is covered with a layerof toluol which would cover the greater part of the thimble (about 2/3 of itsheight) and the flasks are placed in the incubator having been covered withclean dry glass discs.*^ After 16-18 hours of incubation* the flasks with thimbles are removed fromthe incubator. Now each thimble is carefully withdrawn from the surroundingfluid and placed in a fresh (clean, sterile and dry) Erlenmeyer flask and thedialysates are examined for protein by means of the ninhydrin test. Namely of 1% ninhydrin solution is placed in each of several clean, dry test tubesof Jena glass, to each of them 10 of respective dialysates is added* and themixture is boiled for one minute with all the precautions described before.*^. a. Erlenmeyer ). Dialysjng thimble. c. Ujiper opening of the fun-nel. d. Lower opening of the funnel. e. The brim of the funnel. f. Glass disc (cover). View of the glass funnel. 3.—Longitudinal section through the flask with funnel in place.
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Keywords: ., bookcentury1900, bookdecade1910, booksubject, booksubjectmedicine
