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Register a new userUsing the high performance liquid chromatography (HPLC) for analysis of some vitamins
استخدام الكروماتوغرافيا السائلة اعالية الأداء HPLC في تحليل بعض الفيتامينات
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جمال محفوض( باحث )
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يهدف هذا البحـث إلـى اسـتخدام طريقـة الكروماتوغرافيـا الـسائلة العاليـة الأداء (HPLC) chromatography liquid performance high للتوصل إلى الـشروط المثلـى فـي تحليـل بعـض الفيتامينات الموجودة سوية في بعض المستحضرات الدوائية السورية و هـي نياسـيناميد، بيريدوكـسين هيدروكلوريد، ريبوفلافين و التيامين هيدروكلوريد، كما درس تأثير pH الوسط في فعالية الفصل. اِختبرت الطريقة المقترحة على عينات دوائية منتجة محلياً. و تبين إمكانية استخدامها لأغراض المراقبة الدوائية.
The purpose of this article is how to use HPLC technique for analysis of some vitamins. The studied vitamins are niacinamide (vit.PP), pyridoxine hydrochloride (vit.B6), riboflavin (vit.B2) and thiamine hydrochloride (vit. B1), which can be found in some Syrian pharmaceutical preparations.
References used
George, F. M. (2005). Vitamins in food: Analysis, Bioavailability and Stability, P.281, New York
Ceirwyn, S. (1999). Analytical chemistry of foods , P. 64, New York
Robert, B., John,W. S., Donald, B. (2001). Handbook of vitamins, P. 82, New York
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spectrophotometric and chromatographic methods was used for
determination of five water-soluble vitamins, including : Thiamine
HCl (B1), Ascorbic acid (VC), Niacinamide (PP), Cyanocobalamin
(B12), Riboflavin (B2) in this research.
The conditions
of chromatographic separation were reached to the
vitamins with good resolution.
The purpose of this article is how to determine simultaneously the content of
some Anti-Inflammatory (NSAIDS):, Ketoprofen, Flurbiprofen, Orphenadrine
Citrate (Muscle relaxant( and Clopidogrel Bisulfate (Anti-thrombocytopenia( in
pure and pharmace
utical formulations by Reverse Phase-High performance liquid
chromatography (RP-HPLC).
The possibility to develop a High-Performance Liquid
Chromatographic method was studied for simultaneous
determination of: Cu(II), Ni(II), Co(II), Hg(II) by using DTC as
reagent. The diethyldithiocorbamate Reagent was studied by
spectrophotometric Method, Unique Ionisation Constant was
determined and its value.
An HPLC separation of the geometric isomers of β-carotene was developed
to evaluate the Provitamin A content of Palm oil . Different stationary phases
were studied, the best separation of all-trans-, 9-cis- and 13-cis-β-carotene were
obtained with
calcium hydroxide columns using isocratic elution . Eluent was nhexane
or isooctane or mixtures of them. These techniques were used to
determine the provitamin A content of palm oil .
Carotenoids were separated from the wild type yeast
R.mucilaginosa (A23) and its UV mutant at (254 nm)
R.mucilaginosa (A23-M) using thin layer chromatography
(TLC).The results showed the wild type yeast gave three color
patches, β-Carotene,Torule
ne and Torularhodin with Rf values of
0.9, 0.7 and 0.2 respectively, while the mutant yeast gave only one
spot of color ofTorularhodin at thethe value of Rf = 0.2. Carotenoid
produced by mutant yeast R.mucilaginosa (A23-M) was purified
using a column stocked with polychlorinated Hyflo Super Cel and
magnesium oxide with a ratio of (1: 2). The purified carotenoid was
analyzed by high performance liquid technology chromatography
HPLC at a wavelength 495 nm showing that there was only one
colored compound which was Torularhodin
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