TURLI XIL UN NAMUNALARIDAGI TEMIR MIQDORINI SPEKTROFOTOMETRIK USULDA ANIQLASH
In this study, the concentration of iron element in seven types of flour samples - produced domestically in Uzbekistan and imported, widely consumed in Jizzakh city - was determined using the spectrophotometric method. The obtained results were compared according to the national standard O‘zDst 3221. Ortho- phenanthroline was used as a reagent for the photometric determination of iron in the solution. The analysis results showed that the iron concentration in flour products consumed in Jizzakh city varies significantly. The highest iron content was found in sample No. 2, which was produced in the Jizzakh region, while the lowest value was observed in sample No. 3. Based on the obtained results, the mineral composition of the products was evaluated, and scientific conclusions were drawn regarding consumer food safety.
1. Ganiyev Ozodbek., Eshkaraev Sadridin. “Journal of science innovative research in Uzbekistan” jurnali Volume 1, ISSUE 8, 2023. November ResearchBib Impact Factor: 8.654/2023 ISSN 2992-8869.
2. Skoog, D.A., Holler, F.J. and Crouch, S.R. (2017) Principal of Instrumental Analysis. 7th Edition, Sunder College Publisher, New York. https://www.amazon.com/Principles-Instrumental-Analysis-Douglas- Skoog/dp/1305577213 Christian, G.D. Analytical Chemistry. Wiley, 2004.
3. Asrorova Z. S., Yaxshiyeva Z. Z. & Saidmirzayeva D. B. (2025). Turli un namunalarida temir mavjudligining kimyoviy tahlili. Development Of Science, 7(3), pp. 135-139.
4. O‘zbekiston Respublikasi Vazirlar Mahkamasining 2010-yil 20- noyabr, № 260-sonli qarori. GOST – 31262 2004.
5. O.A.Levtifieva, V.V.Bolotov, T.A.Kostina, O.M.Svechnikova, T.I.Yuschenko … “Analytical chemistry (Qualitative analysis) Part one the manual for students of higher schools” book /2014.
6. Otayfah, Mohammed, "Spectrophotometric Determination of Iron(II) and Iron(III) with o-Phenanthroline 3 Dimensional" (2019). Chemistry Master’s Theses. 38. https://digitalcommons.sacredheart.edu/chem_thes/38, G KRISHNAMURTI, Anil Vishnu Moharir, V.A.K. Sarma "Spectrophotometric determination of iron with orthophenanthroline" December 1970 /Microchemical Journal 15(4):585-589. DOI:10.1016/0026-265X(70)90101-3. GOST 26929 -94.
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