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acetic acid added adulteration albumin albuminoid alcohol alkaline alkaloid ammonia ammonium amount amyl alcohol aqueous boiling boric acid bromine butter c.c. of water calcium calculated carbon casein Cassal cent Chem Chemicals for Analysis Chim chloride colour condenser containing cooled copper Detection determined dilute dissolved distilled dried Estimation ether evaporated examination excess experiments extract fatty acids filtered filtrate flask gelatin grammes heated Hehner hydrochloric acid hydrogen insoluble iodide iodine number liquid litre matter method milk minutes mixed mixture nitric acid nitrogen obtained Organic Analysis oxalate oxide oxygen paper percentage permanganate phosphate phosphoric acid potassium precipitate present produced proteids Public Analysts pure quantity reaction reagent residue salts samples saponification separated silver nitrate Society of Public sodium sodium carbonate soluble solution specific gravity starch substance sugar sulphate sulphide sulphuric acid temperature titrated tube typhoid volume washed water-bath weighed Zeit
Page 291 - ... being more granular from such a mixture than when ether alone is employed. The solution is cooled in an ice-chest and bromine added, the flask being preferably left all night in the ice. This, however, is not essential for ordinary working. The liquid is filtered off by the suction funnel attached...
Page 35 - he did not consider our knowledge sufficiently extended to permit of its being taken for granted that no injury is producible, though there is no evidence of injury to health. He points out that it is the vendor, and not the consumer, that is benefited. He considers that, notification of the fact of antiseptics being employed, and their nature and amount would be sufficient ; any deviation from the notification SESSIONAL PAPER No.
Page 205 - The difference between this blank result and that obtained by titrating the filtrate after the addition of the aldehyde solution gives the amount of standard sulphocyanide corresponding to the silver not precipitated by the excess of potassium cyanide.
Page 93 - It is stated that whenever horseflesh is present the petroleum spirit extract has a red to reddish-brown colour, and that even the liquid fatty acids have a more or less reddish-yellow shade. On the other hand, bull's flesh gives a similar colour, so that too much reliance must not be placed on this fact, except as a confirmatory test. When, however, this is found to be the case, when at the same time glycogen is detected, and when the iodine number of the intra-muscular fat exceeds 65, and that...
Page 35 - ... that any of them had given rise to deleterious action; owing to the impossibility of isolating the precise influence of the drug. He objects strongly to the dietetic use of drugs, and is of the opinion that the name and quantity of the antiseptic employed should be on the label, etc. Dr. Pavy does not consider our knowledge sufficiently extended to permit of its being taken for granted that no injury is producible, though there is no evidence of injury to health. He points out that it is the...
Page 300 - ... times its bulk. To about 10 cc of this solution add a like quantity of the cream and about 20 cc of cold water. Shake the mixture vigorously, leave it for five minutes, then filter.
Page 86 - ... per cent., it will be corroborative evidence of the presence of sterilized milk. It is doubtful whether a proportion of sterilized milk much below 30 per cent, could be detected when mixed with new milk.
Page 35 - he had long held that the addition of antiseptics was undesirable, though unable to produce evidence that any one of them had given rise to deleterious action owing to the impossibility of isolating the precise influence of the drug. He objects strongly to the dietetic use of drugs, and is of opinion that the name and quantity of the antiseptic employed should be on the label, or on a paper setting forth the maker's or vendor's name.
Page 241 - Occasionally, when the greater part of the bromine has been washed out of the precipitate, the liquid does not filter clear. It is therefore advisable to keep the washings separate from the filtrate, and, if necessary, to add bromine or sodium sulphate to the wash-water. The contents of the filter-tube (including the asbestos, and, if necessary, the...
Page 36 - His answers are : (1) The use of antiseptics should not be forbidden by law. (2) It is doubtful whether legislation should restrict the amount, as the makers will probably use the minimum amount found sufficient (3) The fact of preservatives being used, and their amount, should be stated on the label.