Year-book of PharmacyJohn Churchill & Sons, 1912 Includes the transactions of the British Pharmaceutical Conference at its 7th-64th annual meetings. |
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Stranica 14
... filtrate , repre- senting 5 c.c. of fluid extract , and shake out with the proper amounts of the appropriate solvents , as directed for the final extraction of the alkaloid . This salting out method removes a number of impurities . The ...
... filtrate , repre- senting 5 c.c. of fluid extract , and shake out with the proper amounts of the appropriate solvents , as directed for the final extraction of the alkaloid . This salting out method removes a number of impurities . The ...
Stranica 15
... filtrate in most cases is a straw yellow or brownish yellow colour , even when very green fluid extracts are used . The only instance in which no satisfactory results could be obtained , is with the fluid extract of cinchona , and in ...
... filtrate in most cases is a straw yellow or brownish yellow colour , even when very green fluid extracts are used . The only instance in which no satisfactory results could be obtained , is with the fluid extract of cinchona , and in ...
Stranica 17
... filtrate and wash water were neutralized with H2SO4 , EtOH was removed in vacuo , H2SO , added and the filtrate precipitated by phos- photungstic and sulphuric acids . The decomposed precipitate was converted into the sulphates and by ...
... filtrate and wash water were neutralized with H2SO4 , EtOH was removed in vacuo , H2SO , added and the filtrate precipitated by phos- photungstic and sulphuric acids . The decomposed precipitate was converted into the sulphates and by ...
Stranica 21
... filtrate ( = 10 Gm . of opium ) is treated with H2S . The PbS is removed by filtration and the H2S removed from the filtrate by a current of air . The PbS is washed with water , the washings being concentrated before being added to the ...
... filtrate ( = 10 Gm . of opium ) is treated with H2S . The PbS is removed by filtration and the H2S removed from the filtrate by a current of air . The PbS is washed with water , the washings being concentrated before being added to the ...
Stranica 22
... filtrate is then concentrated on the water bath to about 10-15 c.c. and transferred , while warm , to a separator ; a little water being used to wash the evaporating- capsule , the final washings being transferred to a second separator ...
... filtrate is then concentrated on the water bath to about 10-15 c.c. and transferred , while warm , to a separator ; a little water being used to wash the evaporating- capsule , the final washings being transferred to a second separator ...
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90 per cent acetic acid acetone acid value added adulterated alcohol alkali alkaloid allantoin AmOH amount aqueous asafetida B.Sc boiling c.c. of water calcium carbonate CHCl3 Chem chemical Chim colour commercial compound Conc constituents containing crystalline crystals detected determined digitalis diluted dispenser dissolved distilled water dose dried drug Drugg Edinburgh EDMUND WHITE essential oil ester ester value Et2O ether EtOH evaporated examined filter filtrate flask formaldehyde gives glucoside glycerin grains H₂SO heated injection insoluble iodine liquid London method methyl minutes mixed mixture NaOH obtained odour ointment oxidation Pharm Pharmaceutical pharmacist pharmacy phenol phenolphthalein plant powder precipitate prepared present pure quantity quinine reaction reagent residue resin Road root salicylic salicylic acid salt salvarsan samples saponification value scammony Schimmels seeds shaken sodium soluble solution standard Street substance sulphate sulphur temperature tincture tion titrated urine washed water-bath weight yield Zeit
Popularni odlomci
Stranica 319 - Mix three parts of alcohol with one part of water, and, having moistened the powder with thirty grammes of the mixture, pack it firmly in a cylindrical percolator ; then add enough of the menstruum to saturate the powder and leave a stratum above it.
Stranica 154 - ... or talcum, and the mixture heated to boiling over a free flame until the carbonate has entirely dissolved. The diluted urine is now run in from the burette, rather rapidly until a chalk-white precipitate forms, and the blue color of the mixture begins to lessen perceptibly, after which the solution from the burette must be run in a few drops at a time, until the disappearance of the last trace of blue color, which marks the end-point. The solution must be kept vigorously boiling throughout the...
Stranica 153 - The mixture is then heated to vigorous boiling, kept at this temperature for one or two minutes, and allowed to cool spontaneously. In the presence of glucose the entire body of the solution will be filled with a precipitate, which may be red, yellow or greenish in tinge.
Stranica 200 - The portion of the alcoholic extract, which was insoluble in water, consisted chiefly of resinous material, from which, however, a quantity of a-elaterin (mp 232; [a]D— 68.9) was isolated (compare Trans., 1909, 95, 1989).
Stranica 200 - colocynthin " and " colocynthein " are not definite individuals. On extracting the pulp of Citrullus Colocynthis (Schrader) with alcohol and subjecting the resulting extract to distillation with steam, a very small amount of a pale yellow essential oil was obtained. From the portion of the extract which was soluble in water the following substances were isolated: (1) A...
Stranica 319 - The drug should be in a coarse or moderately coarse powder unless otherwise directed. Fluidglycerates made from drugs that do not require either an acid or an alkaline menstruum may be prepared by the following general process: The Drug, in coarse powder 1000 Gm, Glycerin 500 cc. Water 1500 cc. Chloroform...
Stranica 653 - THE NATIONAL DISPENSATORY: Containing the Natural History, Chemistry, Pharmacy, Actions and Uses of Medicines...
Stranica 317 - Alcohol, a sufficient quantity to nmke 1000 cc. Cut the cactus grandiflorus and crush it in a mortar, then add 700 cc. of alcohol and transfer the mixture to a closed vessel and macerate for several days with occasional agitation. Express the drug, and measure the expressed liquid and set aside in a closed container. Pack the drugs firmly in a percolator and slowly percolate with alcohol until sufficient percolate is obtained to measure when added to the reserved, expressed liquid, 1000 cc. of tincture...
Stranica 249 - The second kind is as thick as a goosequill, and covered with thin wiry rootlets ; it often branches at the crown into two or three heads, which terminate in tufts of leaf stalks, crowded together, and not separate as in the first kind ; the rhizomes of both kinds are contorted, and have a short fracture, the centre is spongy, and the surrounding portion bright yellow and woody; taste purely bitter. The first kind corresponds with the description of Coptis root...