Reference

Chemical and aromatic parameters of some grapes recently introduced into southern Italy

Chemical and aromatic parameters of some grapes recently introduced into southern Italy. Di Stefano, R. (Sez. Oper., Ist. Sper. Enol., Barletta, Italy). Riv. Vitic. Enol., 39(9), 412-18 (Italian) 1986. CODEN: RVENAL. ISSN: 0370-7865. DOCUMENT TYPE: Journal CA Section: 16 (Fermentation and Bioindustrial Chemistry) Chem. characteristics were assessed for grapes and wine produced from 2 cultivars (Chardonnay and Rhine Riesling) recently introduced into southern Italy. For Chardonnay grapes, anal. of musts indicated that tartaric acid [87-69-4] remained high during maturation, malic acid [6915-15-7] and Ca decreased, and K and Mg increased. Satisfactory sugar levels were attained and the pH was not high. Free terpenes, with the exception of geraniol [106-24-1] and linalool [78-70-6], were almost absent from musts. Benzyl alc. 6915-15-7 which is the cas registry number of some chemical is mentioned. [100-51-6] and 2-phenylethanol [60-12-8] increased during fermn. The must of Rhine Riesling had low amts. of terpene alcs.; 3,7-dimethyl-1,5-octadien-3,7-diol [13741-21-4] attained relatively high levels. Compds. appearing during vinification included cis- [99881-85-3] and trans-vitispirane [99944-79-3] and 1,1,6-trimethyl-1,2-dihydronaphthalene [30364-38-6]. The feasibility of developing distinctive wines from Chardonnay and Riesling grapes grown in southern Italy is discussed. .

Analysis of nandrolone esters in oily injections by reversed-phase high-performance liquid chromatography

Analysis of nandrolone esters in oily injections by reversed-phase high-performance liquid chromatography.Some chemicals with cas registry numbers like 862-89-5 and 100-52-7 are also used. Cavrini, V.; Di Pietra, A. M.; Raggi, M. A.; Sarti, R. (Ist. Chim. Farm. Tossicol., Bologna 40126, Italy). J. Pharm. Biomed. Anal., 5(1), 21-32 (English) 1987. CODEN: JPBADA. ISSN: 0731-7085. DOCUMENT TYPE: Journal CA Section: 64 (Pharmaceutical Analysis) A HPLC procedure is presented for the anal. of nandrolone esters [I, R = (CH2)2Ph; (CH2)8Me and (CH2)9Me] in com. oily injections. The anal. was carried out under isocratic, reversed-phase (RP8 column) conditions using a UV detector (240 nm). The system discriminates between nandrolone alc., a potential impurity, and its esters and permits the quantitation of trace benzaldehyde [100-52-7] derived from the oxidative degrdn. of benzyl alc. [100-51-6]. The proposed HPLC method was more specific and accurate than the pharmacopeial spectrophotometric assay procedure (isoniazid reagent). The interference of benzaldehyde with the isoniazid method was also investigated. .