نتایج جستجو برای: percent citronellal
تعداد نتایج: 97731 فیلتر نتایج به سال:
Synthetic insecticides and repellents have been broadly used worldwide for the control of crop pests and insects acting as vectors of human disease. Despite effectiveness, synthetic insecticides or repellents may cause serious damages to the environment and consequently to humans and animals. The growing biotechnological investigation for alternative insecticides and repellents, particularly of...
The fragrant Citronella oil derived from Cymbopogon nardus (L.) Rendle has many benefits, one of which is as an antibacterial. This research aims to identify the chemical compounds present in essential obtained a local distillery Anding Village, Suliki District, Gunung Mas 50 Kota Regency, Province West Sumatra. was identified using Gas Chromatography-Mass Spectrophotometry (GC-MS) at BRIN (Nat...
The referendum on yesterday’s ballot w h ich recommended the adoption o f a bilateral freeze on nuclear weapons was passed overwhelm ingly by the student body. The final ta lly showed those favor ing the referendum w inn ing by a margin o f 2770, o r 76.9 percent, to 832, o r 231 percent. 53 percent o f the student body voted in the elec tion. people were not really aware o f the issue.” The ...
A fter four years of hardly keeping up with inflation, Indiana cropland values jumped around 10% in the year ending in June 1994 according to the Purdue land values survey. The USDA reported a 7.8% increase for the year ending January 1. Likely causes of strength in the land market include low interest rates (affecting both borrowers and equity investors), generally good yields in Indiana in 19...
All four stereoisomers of 4,8-dimethyldecanal (1) were synthesized from the enantiomers of 2-methyl-1butanol and citronellal. Enantioselective GC analysis enabled separation of (4R,8R)-1 and (4R,8S)-1 from a mixture of (4S,8R)-1 and (4S,8S)-1, when octakis-(2,3-di-O-methoxymethyl-6-O-tert-butyldimethylsilyl)-g-cyclodextrin was employed as a chiral stationary phase. Complete separation of the fo...
A time-intensity gas chromatography-olfactometry (GCO) apparatus was developed to study some aerodynamic parameters that may influence odor detection and intensity measurements by the subjects. The addition of humidified air at the elution place of the compounds is generally recommended for several reasons (essentially to prevent nasal mucosa dehydration and to improve chromatographic effluent ...
An optimized procedure was designed for the preparation of the microporous metal-organic framework (MOF) [Cu3(btc)2] (BTC=benzene-1,3,5-tricarboxylate). The crystalline material was characterized by X-ray diffraction, optical microscopy, SEM, X-ray photoelectron spectroscopy, N2 sorption, thermogravimetry, and IR spectroscopy of adsorbed CO. CO adsorbs on a small number of Cu2O impurities, and ...
Imagine that you get such certain awesome experience and knowledge by only reading a book. How can? It seems to be greater when a book can be the best thing to discover. Books now will appear in printed and soft file collection. One of them is this book 97 1 percent perfect healthcare leadership s pinto report on medical errors. It is so usual with the printed books. However, many people someti...
T he March 16, 2003, edition of The New York Times Magazine’s cover reads, “Half of What Doctors Know Is Wrong.” Inside, the lead story, entitled “The Biggest Mistake of Their Lives,” chronicles the struggles of four survivors of medical errors. The article also makes a projection that in 2003, as many as 98,000 people in the United States would die as a result of medical errors (Burton 2003). ...
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