 Wysłany: Pon 14:43, 28 Lut 2011 Temat postu: scarpe nike 2011 True, false cinnamon essential oi |
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| True, false cinnamon essential oil of the GC-MS analysis
In Fujian, Guangdong, Guangxi, Yunnan and other places .... Cinnamon has completed fire yang and cold pain, temperature and the function of meridians. Although the chemical composition of essential oil of cinnamon reported in the literature 2,scarpe nike 2011, but different origins, different extraction methods, the results were significantly different. Lauraceae medicinal cinnamon bark often mixed cropping, or impurities. In this study, the authenticity of cinnamon essential oil components were analyzed and compared, are reported below. 1 Experimental 1.1 Instruments and Materials HP6890GC/5973MSD gas. MS analyzer, G1701BA-B. 01.00ChemStation software, D. 01.00NIST98 standard MS library search. Cinnamon (commercially available), pseudo-cinnamon (spices Beach purchased in the free market, the Shandong Institute for Drug Control was identified as spices and condiments can be used as Lauraceae Cai Gui C.tamala (Buch.Ham) NeesetEberm. 1.2 true Pseudo cinnamon thing.} Health Comparative and volatile oils to true, false cinnamon crushed, respectively volatile oil extractor according to conventional extraction of essential oil. true, false cinnamon physical contrast and volatile oil Appearance comparison in Table 1, Table 2. 1.3GC -MS analysis of chromatographic conditions: column: HP-5MS, 5% phenylmethyl polysiloxane fused silica capillary column (30nl × 0.25mm × 0.25Ixm), injector temperature: 230 ℃. column temperature: initial beginning temperature of 120 ℃ (5min), to 5 ℃ / min rise to 150 ~ C (to maintain 7rain), carrier gas: Helium, column pressure of 80kPa, flow rate 1ml / Table 1, true, false comparison in Table 2 cinnamon real properties , pseudo-Cinnamon oil Appearance comparison sample rate of the color characteristics of oil revenue in Table 3 cinnamon smell volatile components of Chinese herbal medicines 26 No. 5 May 2003 Table 4 329 * pseudo-chemical composition of essential oil of cinnamon min, split ratio 40:1. MS conditions: interface temperature: 220 ~ C, ionization mode: EI, electron energy: 7OeV, ion source temperature of 230 ~ C, quadrupole temperature of 150 ~ C, tuning: standard tuning, scan range: 1O ~ 425amu,asics tiger shoes, electron multiplier Voltage: 1294V. 2 Results and discussion 2.1 in the above experimental conditions, the true, false cinnamon essential oil to gas chromatography - mass spectrometry, true, false cinnamon were isolated from 61 species and 66 species and after G1701BA-B .01.00 ChemStation software and G1033A, D.01.00NIST98 standard mass spectrometry search database retrieval, were identified 35 chemical composition, an area normalization method measured the relative percentage of each component of volatile oil content, the results are shown in Table 3, Table 4. 2.2 results can be seen from the table, true, false, 11 species of cinnamon essential oil components of the same, the relative content of cinnamon a pseudo higher than cinnamon, they are Or .. pinene, camphene, turnip alcohol, camphor , terpinen 4 - Alcohol, Or .. humulene, blemish en Wherever - cadinene, juniper -5,8 - diene,clarks shoes outlet, Or .- juniper alcohol, borneol. but the main difference in chemical composition than the large, the main chemical components of cinnamon cinnamaldehyde,mbt scarpe prezzi, the relative content of 87%, the main component of cinnamon, pseudo-cineole alone. terpineol, terpinen 4 - alcohol, the relative contents were 3O.91%, 21.12%, 12.37%. 2.3 on true, false cinnamon properties, appearance and chemical composition of essential oil from comparative studies, true, false cinnamon Although similar appearance,asics shoes online, but on the chemical composition of essential oil is essentially different, the study the differential between the two provides a reliable basis. Note: The Shandong Provincial Natural Science Foundation of China (200105) More articles related to topics： new balance outlet The chemical composition of yel timberland scarpe Four Jin and Yuan's mbt scarpe prezzi Superficial _3190 Li Dongyuan st |
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