دُرست إمكانية تشكيل معقد ملون بين أيونات الحديد و الكاشف 4- هيدروكسي -3- 2- هيدروكسي فينيل ميثلن أمينو بنزن حمض السلفون بهدف استخدامه في تحديد معدن الحديد بالطريقة الطيفية الضوئية في
محاليمو المائية، لقد تبين أن الكاشف المذكور يشكل مع الحديد الثنائي معقداً مموناً بالمون البرتقالي في وسط مائي. دلت الدراسة التجريبية لطيف امتصاص محلول المعقد المتشكل، أن طول الموجة الموافق لامتصاص أعظمي, و عند هذا الطول الموجي الأعظمي تمّ تحديد كافة القرائن الكمية المتعلقة بهذا المعقد.
The possibility of formating a colored complex between Fe2+ ions and 4-Hydroxy-3-
[[(2-hydroxy phenyl) methylene] amino] benzene Sulphonic Acid (HVMAB) was studied
spectrophotometric method for determination of iron in aqueous solutions. The reagent
reacts in aqueous medium at pH=5 to give an orange complex with maximum absorbance
λmax=415nm.
References used
GAROLE, D. J. Application of UV Spectrophotometric Method for Estimation of Iron in Tablet dosage form. International Journal of PharmTech Research India, Vol. 4, N0. 1, 2012, 309-310
LOKHANDE, R. S. ; SHEVDE, P. P. ; LELE, S. M. ANALYTICAL METHOD DEVELOPMENT FOR EXTRACTIVE SPECTROPHOTOMETRIC DETERMINATION OF Fe (II) AS A COMPLEX WITH BIS [3-HYDROXYIMINO - 5- METHYL - N-METHYL]-2- IMINE (HIMMI). RASYAN J.Chem India. Vol. 5, N0.3, 2012, 328-331
KRISHNA, D. G. ; DEVI, C. K. Determination of Iron (II) and Iron (III) in presence of micellar medium using Ortho-hydroxy benzamide by spectrophotometry. International Journal of Inorganic and Bioinorganic Chemistry India. Vol. 3, N0. 1, 2013, 5-7
A Simple, accurate and highly sensitive spectrophotometric method have been
developed for the rapid determination of Ofloxacine (OFX) in pure form and
pharmaceutical formulations. The visible spectrophotometric method was based on the
formation of
A sensitive, simple, selective spectrophotometric method has been developed for determination Cobalt (II) with 1-(2-pyridylazo)-2 naphthol (PAN). This method ralies on the formation of stable red colored complex at pH=4.1 which has an absorption maximum at 580nm.
Simple, accurate and reliable spectrophotometric method
has been developed for the quantitative determination of
Cephalosporins: Cefaclor, Cefalexin, Cefadroxil in pure and
pharmaceutical formulations. The method is based on the
determination of that in aqueous medium pH=6.45 at
25±0.5ºC.
A new, simple and sensitive kinetic spectrophotometric
method has been proposed for the determination of tropicamed
(TPC) in pure and pharmaceutical formulations. The method is
based on oxidation TPC by potassium permanganate in strong
alkaline m
In this work the process of removal of zinc ions from aqueous solutions was studied using natural Syrian zeolite. Two samples were used: natural zeolite Z and modified zeolite with NaCl solution Z-Na. The removal percentage of zinc ions vs. time was