. American journal of pharmacy . een, followed by a prec^coming down rapidly on the application of heat. But got a test forglucoside as follows: By heating the solution with a few drops ofH2SO4 for 10 minutes, neutralizing with NaOH, then adding Feh-lings solution and heating 5 minutes, the cupric salt being thenreduced to CugO. Per cent,of drug. Insol. in H2O; sol. in HCl, . . . -45 The same results as in the H2O sol. Insol. in HjO, HCl; sol. in 80 per cent, alcohol: chlorophylland resins, ...... 2*08 Insol. in H2O, HCl and 80 per cent, alcohol: wax and fixed oils, 1- Estimation of alcohol ex
. American journal of pharmacy . een, followed by a prec^coming down rapidly on the application of heat. But got a test forglucoside as follows: By heating the solution with a few drops ofH2SO4 for 10 minutes, neutralizing with NaOH, then adding Feh-lings solution and heating 5 minutes, the cupric salt being thenreduced to CugO. Per cent,of drug. Insol. in H2O; sol. in HCl, . . . -45 The same results as in the H2O sol. Insol. in HjO, HCl; sol. in 80 per cent, alcohol: chlorophylland resins, ...... 2*08 Insol. in H2O, HCl and 80 per cent, alcohol: wax and fixed oils, 1- Estimation of alcohol extract. Total alcohol extract, . . . Powder separated on cooling, .Ash from extract, . Organic matter insol. in H2O, 22-86:2-962-471-027-25 Organic matter and ash soluble in water, . . 11*63 ^ An abstract from Graduation thesis. University of this work I followed Mr. H. B. Parsons scheme for Plant Analysis^as being more simple than that by Wittstein and Rochleder. See Phar., April, 1880, p. Am. )May, 1883. | Camphorated Sulphu?- Lotion. 2e55 The alcohol extracts contain tannin and other organic acids, extract-ives, the remaining alkaloids, glucosides and resins. Not having aOoochs filter, I discontinued the estimation of the alcohol extract,but estimated the tannin according to a method given in the Chem-ical News, vol. xxix, page 189, and obtained 4*2 per cent. Per cent,of drug. Total cold water extract: gums and dextrin, . .3-9 Ash, ....... 1-05 8tarch from acid extract, ..... 6*85 The remainder, being albuminous substances and cellulose, amount-ing to ....... 48-17 I also obtained a greenish colored resinoid in the same manner thatresin of podophyllin is obtained from the alcoholic extract of podo-phyllum. I also think that the antiseptic properties of the drug are due to thevolatile oil, which I think is an aldehyde, being changed to an acid onoxidation. I will try and prove by further experiment. MICROSCOPICAL EXAMINATION. The upper s
Size: 1244px × 2010px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookidamerica, booksubjectpharmacy, bookyear1835
