نتایج جستجو برای: extraction chromatography separation
تعداد نتایج: 372925 فیلتر نتایج به سال:
There is no other naturally occurring defense agent against cancer that has a stronger effectthan paclitaxel, commonly known under the brand name of Taxol®. The major drawback for themore widespread use of paclitaxel and its precious precursor, 10-deacetylbaccatin III (10-DABIII), is that they require large-scale extraction from different parts of yew trees (Taxus species),cell cultures, taxane...
In this study, an efficient and green technique based on ultrasound assisted extraction was developed for separation and determination of some components of double base solid propellant (DB propellant) by high performance liquid chromatography with UV detection (HPLC-UV-Vis the optimum extraction conditions with respect to maximum recovery for target analytes were achieved at 120 min, with powe...
Determination of Citrinin Using Molecularly Imprinted Solid Phase Extraction Purification, HPLC Separation, and Fluorescence Detection Michael Appell, Michael A. Jackson, Lijuan C. Wang & Wayne B. Bosma To cite this article: Michael Appell, Michael A. Jackson, Lijuan C. Wang & Wayne B. Bosma (2015) Determination of Citrinin Using Molecularly Imprinted Solid Phase Extraction Purification, HPLC S...
a rapid, simple and sensitive high-performance liquid chromatography method was developed for determination of ciprofloxacin in plasma by means of ultraviolet detection. ofloxacin was used as an internal standard and separation carried on a novapak c18 column using a mobile phase of 0.01 m phosphate buffer (ph =2.6): methanol (82: 18 v/v). extraction of drug was performed from plasma by liquid-...
Solid-phase extraction (SPE) is an effective tool for the preconcentration of trace elements and their separation from various sample constituents. Octadecyl and other alkyl-bonded silica gels are most widely used for these purposes. The fundamentals of the SPE of inorganic ions are reviewed and compared with those of related techniques (liquid-liquid extraction and reversed-phase liquid chroma...
Stigmasta-5,22-dien-3-O-βDgalactopyranoside has been isolated from ethyl acetate fraction of Nothopanax scutellarium Merr leaves. Extraction method used in this study was the maceration. Separation of compounds were done by column chromatography and thin layer chromatography (TLC). The purification of compound was tested by melting point test and structure elucidation performed using spectrosco...
Supercritical CO2 extraction technology uses supercritical fluid as extractant to extract and separate effective components from plants liquid or solid. At present, is widely used in fluid, with a critical temperature of 31.265 °C pressure 7.18 MPa. The conditions are easy reach. In state, the density very sensitive changes pressure, separation technologies can be divided into two types: membra...
A rapid, simple and sensitive high-performance liquid chromatography method was developed for determination of ciprofloxacin in plasma by means of ultraviolet detection. Ofloxacin was used as an internal standard and separation carried on a Novapak C18 column using a mobile phase of 0.01 M phosphate buffer (pH =2.6): methanol (82: 18 v/v). Extraction of drug was performed from plasma by liquid-...
Radioactive waste generated in decommissioning activities need be classified according to their radioactive content. The radiological information required by national authorities includes diverse alpha and beta emitters, which can only be determined after a radiochemical separation process. This paper presents the work on the development of radiochemical methods for the simultaneous separation ...
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