robiquet pierre (12 Ergebnisse)

Zustand: New. In.

Zustand: New. In.

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Reliure pleine toile. Zustand: Bon Etat. Les 7 premiers tomes de la collection "Les Vieux Hôpitaux Français"reliés ensemble, publiés par les Laboratoires Ciba en 1937 et 1938, représentant l'intégralité des hôpitaux parisiens de cette collection. Bicêtre - La Charité - Hôtel-Dieu - Saint-Lazare - Saint-Louis - La Salpêtrière - Le Val de Grâce. Chaque volume compte 48 pages. 24 aquarelles en couleurs en pleine page. In-8° carré, reliure pleine toile crème en bon état, pièce de titre noire. Cachet d'ex libris.

Couverture souple. Zustand: Bon. 6 vol. in-12 br. (12,5 x 17), 62 p.-61 p.-61 p.-60 p.-61 p.-60 p., coll. "Les grands hommes et leurs médecins", préfaces par divers auteurs, nombreuses illustrations en couleur et en noir et blanc, dans le texte et hors texte, couvertures rempliées illustrées, sous étui cartonné un peu usagé, complet en 6 volumes, ensemble en bon état. Ensemble instructif agréablement illustré.

souple. Zustand: Assez bon. 10 vol. in-8 cartonnage éditeur, Laboratoire Ciba, Paris, Escholier : Hôtel Dieu, 1938 ; Terrasse : L'Hôtel Dieu de Rouen, 1945 ; Larguier : La Salpêtrière, 1939 ; Mauclair : L'Hôtel-Dieu de Beaune, 1940 ; Escholier : L'Hôpital civil de Strasbourg, 1941 ; Funck-Brentano et Marindaz : Bicêtre, 1938 ; Albert-Roulhac : Le Val de Grâce, 1939 ; Champion : La Charité, 1937 ; Sabouraud : L'Hôpital Saint-Louis, 1937 ; Robiquet : Saint-Lazare, 1938 Très intéressant petit lot réunissant 10 titres de la collection. Etat très satisfaisant (trois dos renforcés, bon état par ailleurs). Langue: Français.

Lyon: Laboratoire Ciba, 1935-37. I. CHAMPION, P. Louis XI et ses physiciens. Préface du professeur Laignel-Lavastine. 62pp. (12 planches dont 4 hors texte). Broché (couverture illustrée, quelques rousseurs). II. VAUDOYER, J-L. Ambroise Paré et les Valois. Préface du docteur Henri Mondor. 62pp. (13 planches dont 4 couleurs hors texte). Broché (couverture illustrée, rousseurs sur la couverture). III. ROBIQUET, J. Louis XIV et la Faculté. Préface du docteur T. de Martel. 61pp. (14 planches dont 4 couleurs hors texte). Broché (couverture illustrée, quelques rousseurs sur la couverture et trace de mouillure sur la couverture arrière). IV. JALOUX, E. Louis XV le Roi, le malade. Préface du docteur pasteur Vallery-Radot. 60pp. (19 planches dont 4 couleurs hors texte). Broché (couverture illustrée, quelques rousseurs sur la couverture). VI. LECOMTE, G. Napoléon III sa maladie, son déclin. Préface de M. le professeur G. Lardennois. 60pp. (10 planches dont 4 couleurs hors texte). Broché (couverture illustrée, rousseurs sur la couverture). [Bon état, Formats 13 x 16,5 cm, Intérieurs très frais].

Paris, Chez Bernard, AN XIII (1805). No wrappers. In: "Annales de Chimie ou Recueil de Mémoires." Vol. 55, Cahier 2 (30 Thermidor an XIII). Pp. 113-224 (entire issue offered). Htitle to vol. 55 present. Robiquet's paper: pp. 152-171. First appearance of Robiquet's first chemical paper, in which he relates his discovery of asparagine by analysis of asparagus juice, the first amino acid to be discovered. The following year he made the first isolation of this amino acid together with Vaguelin. Pierre Jean Robiquet was a French chemist, who laid founding work in identifying amino acids, the fundamental bricks of proteins, through recognizing the first of them, asparagin, in 1806, in the take up of the industry of industrial dyes, with the identification of alizarin in 1826, and in the emergence of modern medications, through the identification of codeine in 1832, a powerful molecule today of widespread use with analgesic and antidiarrheal properties.

Ann. de Chimie Phys., 1829. - Paris : Impr. de C. Thua, rue du Cloitre-Xyint-Benoit, no.4, 1829, 8°, 24 pp., Rückenbroschur. Rare Extrait! "Archil is the generic name of several lichens of the Ro-cella and Lecanora genres, which after fermentation and treatment with aqueous diluted ammonia yield a red-violet coloring matter. In his first paper on the subject (Robiquet, 1829] Robiquet wrote that extraction of the coloring matter was a totally empiric process and there was complete ignorance regarding its composition. Collectors of the lichens purposely mixed different species, without penalty, because there was no precise information about the ones that yielded the best colors. After systematic trial and error Robiquet developed an efficient extraction process based on successive macerations of the lichen with concentrated alcohol. The resulting brew was filtered and boiled and on cooling it yielded a white crystalline substance, which was washed several times with water until the liquid had no flavor. The solid was now dried in a water bath and then treated with ether. The extract was distilled to eliminate most of the solvent, leaving a crystalline mass surrounded by a greenbrown viscous acrid matter, having a strong smell. The crystals were now separated by cold alcohol washes and purified by solution in hot alcohol and recrystallization. This allowed separating it into two different substances, one formed of needle-shaped white crystals, the other by a green acrid tasting resin. The crystals were tested with different reagents and found to contain ammonium and calcium oxalates. Robiquet extracted two substances, a white one (variolin, va-riolarin) and orcin [3,5-dihydroxytoluene, C6H3(CH3)(OH)2], also white and having a sweet flavor. Variolarin was separated from the alcoholic extract by means of ether; by distillation it yielded an essential oil. Orcin, exposed successively to the action of ammonia (or putrefied urine) and air lost its sweet flavor and took on a dark red color (Robiquet named the pigment orcein), which in aqueous solution yielded a red crimson tincture similar to the one produced from archil (Robiquet, 1829)." EMERGENT TOPICS ON CHEMISTRY EDUCATION | GREEN CHEMISTRY] - Jaime Wisniak: Pierre-Jean Robiquet.Educ. quim., 24 (nùm. extraord. 1) (2013), pp.139-149 Orcinol, Orcin, Orseille.

Paris : Impr. de Fain, Place de L'Odéon, 1822, 8°, 12 pp., Streifenbrochur. Rare! "In 1814 Heinrich August von Vogel (1778-1867) described his findings about the composition of bitter almonds and the properties of its essential oil (Vogel, 1817). The most outstanding characteristic of the oil was that in contact with air for a few minutes it transformed into a semi-transparent crystalline mass and lost most of its odor and volatility; the crystals maintained in a stream of warm air did not decrease in size and continued to be very soluble in ether and in alcohol. It was possible to return the original odor by dissolving the oil in a solution of ammonium sulfide. According to Vogel the reagent removed the oxygen that the oil had absorbed from the air and returned it to its original state. Robiquet believed (Robiquet, 1822) that the real reason was ammonia and not the sulfide function; in the past he had already observed that the juice extracted from green fruit had only a faint smell and that the natural alteration of the fruit was accompanied by generation of ammonia. The intensity of the smell was proportional to the amount of ammonia released. In addition, distillation of the fresh juice did not produce essential oil, but did after alteration of the juice. For these reasons, Robiquet considered the volatile and odorant product of bitter almonds to be a combination of a particular principle and ammonia; to prove that Vogel was wrong he went on to perform additional experiences. He separated the essential oil and found that its solidification took place after several days and not minutes as claimed by Vogel; hence he decided to fractionate the oil. Robiquet observed that the first portions distilled experienced no change in contact with air while the following ones crystallized almost immediately. No crystallization was observed when the distillation was conducted under vacuum or in an atmosphere of hydrogen, carbon dioxide, or nitrogen. Examination of the volatile part of the essential oil showed that it contained nitrogen because it generated potassium prussiate (cyanide) when contacted with hot KOH and nitrogen when burnt in the presence of cupric oxide. Similar experiences with the less volatile fraction showed that it did not contain nitrogen. No only that, Robiquet proved that the crystalline portion did not recover the odor of bitter almonds when treated with ammonium sulfide if previously they have been totally deprived of the volatile portion (Robiquet, 1822). Examination of the crystalline mater showed that it was acid, soluble in boiling water, fusible and easily volatilized, and easily combined con alkalis, that is, its properties were completely different from those of the volatile fraction. The volatile fraction killed animals in seconds while the crystalline one had not effect. Robiquet was unable to prove that the volatile matter contained prussic acid; it did not react with cold KOH but did so intensely with hot KOH producing potassium cyanide. Robiquet also reported that the volatile oil of Laurier almond (Prunus laurocerasus L.) had the same characteristics as that of bitter almonds (Robiquet, 1822)." EMERGENT TOPICS ON CHEMISTRY EDUCATION | GREEN CHEMISTRY] - Jaime Wisniak: Pierre-Jean Robiquet.Educ. quim., 24 (nùm. extraord. 1) (2013), pp.139-149.

Ann. de Chimie phys., 1827. - Paris : Impr. de C. Thuau, 1827, 8°, 28 pp., Rückenbroschur. Rare Offprint! "The changes in color observed during the different purification stages led Robiquet and Colin to suspect the presence of a second coloring matter in the roots of madder. Eventually they separated it and named purpurin because of its red purple color (Robiquet and Colin, 1827). Purpurin crystallized in the form of needles, which were less soluble in aqueous alum than alizarin. This solution was colored dark red. It also dissolved in alkaline liquors to which it communicated a gooseberry tint, while alizarin colored it intense violet. Robiquet and Colin also reported that treating the roots with concentrated sulfuric acid carbonized all organic matter, except the coloring one, which apparently remained combined with the resulting carbon. They named the residue sulfuric carbon; this carbon treated with water produced a very acid colorless liquid. Repeated washing of sulfuric carbon with water until all the acidity was gone, left a solid residue, which dissolved in aqueous alkali yielding a liquid capable of dyeing clothes in all the tones provided by madder itself, such as violet, red, black, etc., depending on the nature of the mordant. Well-washed sulfuric carbon, treated with alum water, provided tinctures of a very pure color, which could be used for the preparation of lakes (Robiquet and Colin, 1827). By improving thus the yields of alizarin, Robiquet and Colin helped developing the French dyeing industry." Jaime Wisniak; Pierre-Jean Robiquet. Educacion Quimica, 24/ Suppl. 1 (2013) : pp.139-149 Pierre Jean Robiquet (1780-1840) French chemist, who laid founding work in identifying amino acids, the fundamental building blocks of proteins. He did this through recognizing the first of them, asparagine, in 1806, in the industry's adoption of industrial dyes, with the identification of alizarin in 1826, and in the emergence of modern medications, through the identification of codeine in 1832, an opiate alkaloid substance of widespread use with analgesic and antidiarrheal properties.