نتایج جستجو برای: mobile phase
تعداد نتایج: 761028 فیلتر نتایج به سال:
there is a great interest in developing rapid analytical methods and provide appropriate parametersfor quantitative analysis of compounds derived from refractory pollutants. such methods are important forroutine quality control analysis of an effluent before being discharged into the environment. therefore, a rapid methodology for identification and quantification of some aliphatic acids is pro...
this study aimed to determine phenolic compounds of artemisia spicigera (family asteraceae) growing in east-azarbaijan province of iran. 20%, 40 % and 60% spe fractions of methanolic extract of a. spicigera, were subjected to reversed phase preparative hplc, with the mobile phase consisted of methanol and water. structural identification of phytochemicals by spectroscopic methods including uv a...
mobile technology and mobile learning are considered as important and impressive factors in earning the organizational competencies and achieving competitive advantages and customer loyalty. the purpose of this study is to evaluate the role of mobile technology in customer loyalty. the mellat bank mobile services are entering a new transition period. in response, the banking industrial is shift...
Structured Light Illumination (SLI) systems have been used for reliable indoor dense 3D scanning via phase triangulation. However, mobile SLI 360 $^{\circ }$ reconstruction demand point cloud registration, involving high computational c...
influence the driving force. Thermodynamic quantities determined from homologous series retention throughout the entire composition range may lead to a better understanding of the driving force and fundamental retention mechanism that results from the inherent differences in chromatographic solvation between acetonitrile and methanol. Tan and co-workers (11) showed that stationary-phase composi...
A reverse phase high performance liquid chromatography method was developed for simultaneous estimation of nitazoxanide and ofloxacin in tablet formulation. The separation and quantification was achieved by Hiq Sil C(18)V Size 4.6 mm Ø (*)250 mm column in isocratic mode, with mobile phase consisting of acetonitrile-methanol-0.4 M citric acid, (60:30:10, v/v/v). Citric acid used to stabilize nit...
Molecular species of phosphatidic acid (PA) were separated by reversed-phase high-performance liquid chromatography with mobile phases of acetonitrile-methanol-water containing quaternary ammonium phosphates (OAPs). Effective resolution of PA complexes was achieved by using low-mass OAPs at concentrations ~ 50 mM or high-mass OAPs at concentrations ~ 10 mM. Capacity factor (k') values were foun...
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