well as in the

2010-12-4 14:18:10 1456

0 本帖最后由 eehome 于 2013-1-5 10:05 编辑 times New="New" Roman'; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">accidental mixturcs of various excrementitious substances thrown out by the system, and differing in their nature according to circumstances. In the former case a further exploration of this field would be Moncler , Moncler jacket, Moncler K2 vest black, Moncler K2 vest Pink justified by the probability of arriving at definite results. In the latter case, however, the investigation would certainly have to be abandoned at once, from the want of a secure basis on which to found further research. In order to arrive at a positive conclusion on this point, the readiest means was, as it seemed to me, to ascertain the exact composition of the extractive matters obtained at different times from various sources; for, b Moncler jackets, Moncler Multiple K2 Vest Beige eing neutral uncrystallizable bodies, it was evident that a mere examination of their chemical and physical properties would lead to no certain result. This portion of the investigation has occupied me for some time, commencing in the year 1856, and will form the subject of the present communication. The Successive series of experiments which were made will be distinguished by letters with the respective dates attached. A (1856) Moncler jackets for men, Moncler Alpin, Moncler Angers, Moncler Bady . In this, as well as in the subsequent series of experiments, I made use of neutral and basic acetate of lead for the purpose of separating the extractive matters from the other constituents of urine, the same means having previously been employed with this view by Scherer. Having taken a quantity of ordinary urine, I added to it a solution of acetate of lead, which produced a copious precipitate, consisting of sulphate, phosp Moncler Branson Jacket ，Moncler Branson Navy , Moncler Bea hate, chloride, and urate of lead, together with lead compounds of extractive matter. This precipitate was filtered off and thrown away. In the filtered liquid, which was lighter in colour than the original urine, basic acetate of lead produced a second precipitate as abundant as the first, and consisting principally of lead compounds of the extractive matters mixed with basic chloride of lead. This precipitate, after being well washed wi Moncler down jackets, Moncler Multiple K2 Vest Black th water, was treated with an excess of cold dilute sulphuric acid, with which it was allowed to remain in contact for some time. The extractive matter set at liberty by the acid communicated to the liquid a brown colour, a peculiar urinous odour being at the same time evolved. The excess of acid was removed by adding carbonate of lead, and stirring the mixture well in a mortar. After all effervescence had ceased, the liquid, which was now of a fine Moncler jackets women, Moncler Boutique yellow colour like urine itself, was filtered and evaporated; but in order to avoid any decomposition which might have been caused by the application of artificial heat, the evaporation was conducted at the ordinary temperature by means of a current of air in the apparatus formerly employed 0
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