Browsing by Author "Sungur, S"

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    Polarographic determination of fluvoxamine maleate in tablets
    Elmali, F; Alpdogan, G; Sungur, S; Aycan, S
    The differential pulse polarographic (DPP) method was developed for the determination of fluvoxamine maleate (I). At pH = 3. 7, (I) give a peak at - 0. 73 V in aqueous solution. The developed method was applied to the assay of the drug substance in commercial tablet formulations. The results were statistically compared with those obtained by reference methods (HPLC and direct current polarographic method) using t- and F- tests at 95 % confidence level.
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    The Contribution of Motivational Beliefs to Students' Metacognitive Strategy Use
    Kahraman, N; Sungur, S
    This study aimed at investigating how well elementary students' self-efficacy and achievement goals (mastery approach, mastery avoidance, performance approach, and performance avoidance goals) predict their metacognitive strategy use in science. For the specified purpose, Achievement Goal Questionnaire and Motivated Strategies for Learning Questionnaire were administered to 115 elementary school students. Results showed that the elementary students who feel self-efficacious in science and study for the reasons of learning and understanding (mastery approach goals) the course material tend to use metacognitive strategies at higher levels. In line with the findings, specific suggestions were made for science teachers to help development of adaptive motivational beliefs and effective strategy use.
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    Differential pulse polarographic determination of enalapril maleate
    Elmali, F; Alpdogan, G; Aycan, S; Sungur, S
    A differential pulse polarographic (DPP) method has been developed for the quantitative analysis of enalapril maleate. Enalapril maleate gives a peak at -1.4 V in methanol. A calibration curve was constructed for the 20 -100 mug ml(-1) concentration range. As a reference method, a reversed phase high performance liquid chromatographic procedure has been developed. Commercially available tablets were analysed by the two methods. Statistical evaluations indicated that there was no significant difference between the mean values and precisions of the two methods at a 95% confidence level.