Determination of Iron, Cobalt and Zinc in Caries Teeth by Neutron Activation Analysis
نویسندگان
چکیده
منابع مشابه
Determination of chromium and cobalt in human serum by neutron activation analysis.
Confusion exists about the chromium and cobalt concentrations in the serum of healthy individuals. We determined these elements by neutron activation analysis. The samples were irradiated during 12 days at a flux of approximately 10(14) neutrons.cm-2.s-1. Chromium was selectively separated by distillation after the irradiation. We obtained the following values (mean +/- standard deviation): 0.1...
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چکیده هدف از این کار بررسی الکترواکسیداسیون کتکول و مشتقات آن در حضور 4-فنیل سمی کاربامازید بوده است اکسیداسیون کتکولها ترکیبات نا پایدار کینونها را تولید می کنند که این ترکیبات می تواند در واکنش مایکل بعنوان پذیرنده نوکلئوفیل عمل نمایند. در ادامه اکسایش کتکولهای (a-c1) را درحضور 4-فنیل سمی کاربامازید در محلول آب/استونیتریل (90/10)بوسیله ولتامتری چرخه ای و کولن متری در پتانسیل ثابت مورد بررسی ...
15 صفحه اولDetermination of bromides in blood by neutron activation analysis.
A method is described for the determination of bromides in biological samples using neutron activation analysis. The specificity of this method eliminates sources of interference from other halogens and contamination of analytical agents with extraneous bromide. In duplicate samples of blood, at varying concentrations of potassium bromide, the mean difference was 4.5% ±1.95 and the mean of the ...
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the pr esent s t udy indicate s an incidence of 1/1200 cys t. i,c fi brotic (cf) pat i ent s among hospi taliz ed children. it als o r e ports the reliability o f i nstrumental neutron a c - tivation a na lys i s (naa) method in t he di agnos i s of cf pati ents. there was no ove r l apping o f t h e results o f na il sod i um conc en t r a t ion i n cp pat ients and ror mal conr.roi s (mean 11...
متن کاملthe stady and analysis of rice agroclimatology in lenjan
the west of esfahan province, iran, is one of the most important agricultural areas throughout the country due to the climate variability and life-giving water of zayanderood river. rice is one of the major and economic crops in this area. the most important climatic elements in agricultural activities which should be considered include temperature, relative humidity, precipitation and wind. so...
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ژورنال
عنوان ژورنال: RADIOISOTOPES
سال: 1999
ISSN: 0033-8303,1884-4111
DOI: 10.3769/radioisotopes.48.172