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Preparative isolation and purification of six volatile compounds from essential oil of Curcuma wenyujin using high-performance centrifugal partition chromatography doc

Preparative isolation and purification of six volatile compounds from essential oil of Curcuma wenyujin using high-performance centrifugal partition chromatography doc

Preparative isolation and purification of six volatile compounds from essential oil of Curcuma wenyujin using high-performance centrifugal partition chromatography doc

... Article Preparative isolation and purification of six volatile compounds from essential oil of Curcuma wenyujin using high-performance centrifugal partition chromatography Six volatile compounds, ... (4), 1,8-cineole (5) and b-elemene (6), were successfully isolated from the essential oil of Curcuma wenyujin by high-performance centrifugal partition chromatography using a nonaqueoustwo-phase ... total of 8 mg of curdione (1), 4 mg of curcumol (2), 10 mg of germacrone (3), 18 mg of curzerene (4), 9 mg of 1,8-cineole (5) and 17 mg of b-elemene (6) from the essential oil (300 mg) in 2.4 mL of the...
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Estimation of emissions of nonmethane organic compounds from a closed landfill site using a landfill gas emission model

Estimation of emissions of nonmethane organic compounds from a closed landfill site using a landfill gas emission model

... from the inhabitants of the halls concerning strange odours from the site. There is also fear of potential hazards of explosion, asphyxiation and toxicity from methane, carbon dioxide, and volatile ... Figure 3. Graph of frequency against range of values of age of landfill (t) Figure 4 represents range of values of the total annual mass emission rate of nonmethane organic compounds (NMOC) ... hazardous and odorous gases; the amount of which depends upon a variety of factors such as the nature and moisture content of the waste, amount of oxygen present, and temperature inside the landfill...
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Tài liệu Báo cáo

Tài liệu Báo cáo " Chemical composition of essential oil of Machilus Japonica Siebold & Zucc. (Lauraceae) from Vietnam " pptx

... Results and discussion The essential oil was light yellow and the total yield of 1.23%. The chemical composition of the leaf essential oils of investigated species collected in October 1991 and ... β-phellandrene (70.7%) and the ratio of α-phellandrene and β-phellandrene was 5.73. Table 1. The composition of leaf essential oil of Machilus japonica Siebold & Zucc. (Lauraceae) fromVietnam Peak ... chemical composition of essential oil of Machilus Japonica Siebold & Zucc. (Lauraceae) from Vietnam will be discussed. The essential oil composition of the different species of Lauraceae family...
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MEMORIES A Story of German Love Translated from the German of MAX MULLER ppt

MEMORIES A Story of German Love Translated from the German of MAX MULLER ppt

... and pathos, and filled with the tenderest feeling of sympathy, which will go straight to the heart of every lover of the ideal in the world of humanity, and every worshipper in the world of ... upon the iron rails and thou seest a well-known eye that would recognize thee, stretch out thy hand and try to grasp the hand of a friend, and perhaps thou wilt understand why man passes man ... with her hands generally folded. Her face was so pale and yet so mild, and her eyes so deep and unfathomable, that I often stood before her lost in thought and looked upon her and asked myself...
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BIRD STORIES FROM BURROUGHS SKETCHES OF BIRD LIFE TAKEN FROM THE WORKS OF JOHN BURROUGHS WITH ILLUSTRATIONS BY LOUIS AGASSIZ FUERTES doc

BIRD STORIES FROM BURROUGHS SKETCHES OF BIRD LIFE TAKEN FROM THE WORKS OF JOHN BURROUGHS WITH ILLUSTRATIONS BY LOUIS AGASSIZ FUERTES doc

... lifted one side of my hat and out darted one of the birds; then I lifted the hat from the other. One of the females then rushed, apparently with notes of joy and congratulation, to one of the males, ... and the spell of winter is thoroughly broken, and the remembrance of it afar off. One of the most graceful of warriors is the robin. I know few prettier sights than two males challenging and ... and fell to the ground and fought savagely, rolling over and over each other, clawing and tweaking and locking beaks and hanging on like bull terriers. They did this repeatedly; once one of...
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Báo cáo khoa học: Exosites mediate the anti-inflammatory effects of a multifunctional serpin from the saliva of the tick Ixodes ricinus potx

Báo cáo khoa học: Exosites mediate the anti-inflammatory effects of a multifunctional serpin from the saliva of the tick Ixodes ricinus potx

... Europe and isable to take its blood meal from a variety of verte-brates, ranging from amphibians to mammals, and including domestic animals and humans [2]. It is theone of the vectors of Borrelia ... retro-orbital puncture of six randomlychosen mice for cytokine analysis (MCP-1, TNF-a, IL-6,IL-10, IL-1b). All animals were maintained and handledaccording to local and national ethical guidelines.Statistical ... factor pathway inhibitor (TFPI) from the salivarygland of the tick, Ixodes scapularis: identification of fac-tor X and factor Xa as scaffolds for the inhibition of factor VIIa ⁄ tissue factor...
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Báo cáo khoa học: Phaiodotoxin, a novel structural class of insect-toxin isolated from the venom of the Mexican scorpion Anuroctonus phaiodactylus pdf

Báo cáo khoa học: Phaiodotoxin, a novel structural class of insect-toxin isolated from the venom of the Mexican scorpion Anuroctonus phaiodactylus pdf

... injecting 3 lL of variable amounts of venom and/ or fractions at the intersegments of the right leg.Phaiodotoxin in amounts of 0.2, 0.5, 0.8 and 1.0 lgofpeptide per animal were injected, using two ... long-chain sub-family of scorpion peptides. S everal genes coding for t hispeptide and similar ones were cloned by PCR, using cDNAprepared from the RNA of venomous glands of this scor-pion. ... depolarizations of 5 mV from )120 mV t o )15 mVfollowed by a 50 ms pulse to )10 mV, from a h oldingpotential of )90 mV.When the activation and inactivation curves o f controlconditions on the one hand and...
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RESEARCH ON THE CHANGE OF 2-AP AND OTHER VOLATILE COMPOUNDS IN PROCESSING BUN FROM RICE

RESEARCH ON THE CHANGE OF 2-AP AND OTHER VOLATILE COMPOUNDS IN PROCESSING BUN FROM RICE

... to identify and quantify the amount of 2-AP and other volatile compounds 2-AP extracted from pandan leaves was used as standard. Results indicated that 2-AP and other volatile compounds clearly ... (b), and mature leaf (c) Fig 1. Three types of Pandan leaves: old leaf (a), young leaf (b), and mature leaf (c) For the identification and quantification of change in 2-AP and other volatile ... 2-AP in pandan leaf: Content of 2 - AP in pandan leaf extracted by SDE was calculated as follows: Fig 2. System of the SPME extraction Research on the Change of 2-AP and Other Volatile Compounds...
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Isolation and characterization of an extracellular polymer closely related to flocculation of activated sludge

Isolation and characterization of an extracellular polymer closely related to flocculation of activated sludge

... experiments. Extraction of extracellular polymer from activated sludge floc. Six hundred milliliters of activated sludge was washed 5 times with distilled water, and Journal of Water and Environment ... follows: 500 g of soil was washed 3 times with distilled water and suspended in 1,000 ml of water. The mixture was allowed to stand for 10min and the supernatant was collected and used for the ... Journal of Water and Environment Technology, Vol.3, No.2, 2005 - 289 - Isolation and characterization of an extracellular polymer closely related to flocculation of activated sludge...
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