نتایج جستجو برای: quantitative phase analysis
تعداد نتایج: 3483156 فیلتر نتایج به سال:
background change theories provide an opportunity for organizational managers to plan, monitor and evaluate changes using a framework which enable them, among others, to show a fast response to environmental fluctuations and to predict the changing patterns of individuals and technology. the current study aimed to explore whether the change in the public accounting system of the iranian health ...
all analytical methods are generally based on the measurement of a parameter or parameters which are somehow related to the concentration of the species.an ideal analytical method is one in which the concentration of a species can be measured to a high degree precision and accuracy and with a high sensitivity. unfortunately finding such a method is very difficult or sometimes even impossible.in...
The Earth and how it is used have always been the main things in city planning. The analysis and the special and local arrangement of urban use and urban functions are among the important and effective branches of permanent urban development. This paper attempts to analyze quantitatively and qualitatively the city structure of Ardabil with regard to its permanent development. Since it is descri...
a simple, accurate and rapid high performance thin layer chromatography (hptlc)-densitometric method was developed for separation and determination of cetirizine (cet) as a long acting antihistamine and montelukast (mon) as an antileukotriene in pharmaceutical dosage forms. the compounds were separated on silica gel 60 f254 hptlc plates using a mixture of ethyl acetate : methanol : ammonia solu...
The present research has aimed to present a model to guarantee the quality of student-teacher preparation in Iran's educational system. For this purpose, a sequential, exploratory mixed research was used. Grounded theory was used in the qualitative phase. By means of purposive sampling, 28 individuals who better suited the aim of the research were selected, and semi-structured interviews were c...
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...
The present research has aimed to present a model for and identify the dimensions and components of empowering developmental coaches and deputies in high schools. Taking a mixed, exploratory approach, the research used the strategy derived from grounded theory in the qualitative section, while a descriptive-survey method was used in the quantitative section. The statistical population for the f...
The main objective of the present study was to explore the barriers to the development of agricultural businesses in the incubator of Razi University, Iran. The research was an applied study in terms of objective and an exploratory mixed method in terms of data collection methodology. The statistical population was composed of agricultural businesses and their personnel in the incubator of Razi...
A simple and sensitive high performance liquid chromatographic method with electrochemical detection is described for the quantitative determination of the amoxycillin and clavulanic acid in pharmaceutical dosage forms. Separation of sample components occurs on a reversed phase C18 column with a mobile phase consisting of methanol-water-phosphate buffer. For the amperometric detection, the pote...
the substances responsible for saffron’s characteristic quality are crocins, picrocrocin, and safranal. the drying process is critical to the saffron quality as measured by levels of secondary metabolites, crocin (color and anti-tumor properties), picrocrocin (taste), and safranal (aroma). four different dehydration methods were evaluated: iranian traditional method (room temperature); dehydrat...
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