نتایج جستجو برای: multi element determination

تعداد نتایج: 898965  

Journal: :analytical and bioanalytical chemistry research 0
biuck habibi electroanalytical chemistry laboratory, department of chemistry, faculty of sciences, azarbaijan shahid madani university, tabriz 53714-161, iran zahra ayazi electroanalytical chemistry laboratory, department of chemistry, faculty of sciences, azarbaijan shahid madani university, tabriz 53714-161, iran maryam dadkhah electroanalytical chemistry laboratory, department of chemistry, faculty of sciences, azarbaijan shahid madani university, tabriz 53714-161, iran

in the present work, an efficient modified carbon-ceramic electrode by multi-walled carbon nanotubes/ionic liquid nanocomposite (mwcnts/il/cce) was prepared through a simple and repeatable procedure. the introduced modified electrode was used for the study of the electrochemical behaviour and determination of tryptophan (trp) in the presence of uric acid (ua) using cyclic voltammetry (cv), diff...

2006
Awad A. Momen George A. Zachariadis Aristidis N. Anthemidis John A. Stratis

A simple and reliable multi-element procedure for determination of essential (Cr, Cu, Fe, Mg, Mn, Zn) and toxic (Al, Cd, Pb) elements in legumes by inductively coupled plasma-optical emission spectrometry (ICP-OES) was developed. In this contribution, four different digestion procedures were thoroughly investigated and accurately evaluated with respect to their affect on the analysis of legumes...

2002
W. K. Fletcher S. J. Day

some other “finish”, is widely used in determination of the total gold content of heavy-mineral concentrates. Direct instrumental neutron activation analysis (INAA) of the concenrate, which has the advantage of being a nondestructive multi-element technique, is also used. The objective of this study was to compare gold results obtained by the two methods on typical heavy mineral concentrates fr...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم انسانی 1392

this research has been taken among the students of high school in karaj city during the years 1391 and 1392. this is a survey research and data gathering is through questionnaires. studying the “an analysis of students’ tendency toward non-native reference groups in karaj”. the questionnaire was distributed among 260 of these students who were chosen through multi step cluster sampling. conside...

Journal: :Progress In Electromagnetics Research 2010

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