The invention discloses an HPLC analysis method for measuring minocycline and related substances thereof. According to the HPLC analysis method, a chromatographic column Zorbax Extend C18 (250 mm*4.6 mm, 5 micrometers) is adopted, a methanol-acetonitrile-acetate buffer solution serves as a mobile ...
Separation was achieved on a μ-Bondapak C18HPLC column using sodium hydrogen phosphate solution (0.01 M)/acetonitrile (60/40 v/v) at pH 3.5 ± 0.1 at 1.5 ml/min. Trimipramine was used as the internal standard for analysis of plasma samples. The retention times for imipramine and tr...
In this study, we developed a suitable high-performance liquid chromatography (HPLC) method which allows to demonstrate the relative amounts of d,l- and meso-isomer in 99mTc-exametazime and so obviates the need for a biodistribution test in animals as part of the quality control. Due to ...
Shalaby, A., 1998, Simple hplc method for the analysis of some pharmaceuticals, Journal of Liquid Chromatography & Related Technologies, 21, 20, 3161-3171.Shalaby A. Simple HPLC method for the analysis of some pharmaceuticals. Journal of Liquid Chromatography and Related Technologies . 1998; ...
A reversed-phase high performance liquid chromatography (RP-HPLC) method, with acetic acid and sodium perchlorate phase modifiers, was developed to separate a mixture of linear alkylbenzene sulphonates (LAS), containing 10 to 13 carbon atoms. The effects of methanol-water compositions and concentrati...
A simplified description of HPLC separation under overload conditions. A synthesis and extension of two recent approaches Knox and Pyper [1] have recently proposed a simplified model of HPLC separation in an overload mode. We have now compared certain predictions of their mode... LR Snyder,GB ...
aHPLC是较理想的植物内源激素分析方法,具有灵敏度高和选择性、重复性好及分析速度快等特点。 HPLC is the ideal plant endogene hormone analysis method, has the sensitivity high and the selectivity, the duplication good and the analysis speed quick and so on the characteristics.[translate]...
UHPLC columns. Some columns contain 1.5 µm solid core particles, deliver exceptionally sharp peaks, maximal peak capacities, and remarkably low retention time variations. These features and capabilities enable reproducible peptide mapping for reliable batch...
In particular, the online coupling of HPLC-NMR was used to identify and quantify the microstructural moieties during the chromatographic separation. It was possible to individually follow the elution of the syndiotactic, heterotactic as well as isotactic patterns. Several representative blends of PMMA ...
A new, fast and sensitive high-performance liquid chromatography/electrospray ionization tandem mass spectrometry (HPLC/ESI-MS/MS) method was developed and validated for isovalerylshikonin in rat plasma using emodin as internal standard (IS). The analyte was extracted from rat plasma with ethyl acet...