نتایج جستجو برای: centrifuge method
تعداد نتایج: 1631754 فیلتر نتایج به سال:
Direct sample introduction (DSI), or "dirty sample injection," was investigated in the determination of 22 diverse pesticide residues in mixed apple, green bean, and carrot extracts by benchtop gas chromatography/tandem mass spectrometry (DSI/GC/MS-MS). The targeted pesticides, some of which were incurred in the samples, included chlorpyrifos, azinphos-methyl, parathion-methyl, diazinon, terbuf...
In total, 29 compounds from sweet wormwood (Artemisia annua L.) oil were identified using gas chromatography-mass spectrometry. The five active components were D-camphor, linalool, cineole, α-terpineol, and L(-)-borneol. The effectiveness of A. annua oil, as well as d-camphor, linalool, cineole, α-terpineol, and L(-)-borneol, as fumigants, contact insecticides, and repellents, were tested on th...
A total of 67 leukaphereses were performed with the continuous-flow centrifuge (CFC) on 27 healthy donors for the purpose of obtaining increased yields of granulocytes for infusion into septic patients with acute leukemia accompanied by severe granulocytopenia. The addition of hydroxyethyl starch (HES) to the input line of the CFC significantly (p < 0.005) increased the total number of leukocyt...
BACKGROUND Artificial gravity using short-radius centrifugation has been proposed as an integrative countermeasure during spaceflight. OBJECTIVE To determine the rotation parameters of a short-radius centrifuge so that subjects rotating in the dark would feel as if they were standing upright. METHODS Twelve subjects were lying supine in a nacelle on a 2.8 m-radius centrifuge with their head...
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