FT-IR spectrophotometric analysis of dehydroepiandrosterone and its pharmaceutical formulation

Il Farmaco ◽  
2005 ◽  
Vol 60 (1) ◽  
pp. 33-36 ◽  
Author(s):  
Andrei A. Bunaciu ◽  
Hassan Y. Aboul-Enein ◽  
Şerban Fleschin
Keyword(s):  
Spectrophotometric Analysis ◽  
Pharmaceutical Formulation ◽  
Ft Ir

scholarly journals UV SPECTROPHOTOMETRIC ANALYSIS AND VALIDATION OF OSELTAMIVIRPHOSPHATE IN PURE AND PHARMACEUTICAL FORMULATION

2020 ◽  
pp. 111-114 ◽  
Author(s):  
SACHIN A. YANJANE ◽  
SHRISHAIL M. GHURGHURE ◽  
VINOD K. MATOLE
Keyword(s):  
Spectrophotometric Method ◽  
Spectrophotometric Analysis ◽  
Pharmaceutical Formulation ◽  
Ich Guidelines ◽  
Highly Sensitive ◽  
Double Beam ◽  
Recovery Study ◽  
Uv Visible ◽  
Oseltamivir Phosphate ◽  
Simple Economic

Objective: A new, simple, economical, precise, sensitive, linear, accurate, rapid UV spectrophotometric method has been developed for the estimation of Oseltamivir Phosphate in pure form and pharmaceutical formulation. Methods: This UV method was developed using Methanol as a solvent. In the present method, the wavelength selected for analysis was 218 nm. UV-Visible double beam spectrophotometer (Systronic 2201) was used to carry out spectral analysis. The ICH guidelines were used to validate the method. Results: The method was validated for linearity, range, accuracy, precision, robustness, LOD and LOQ. Linearity was found in the range of 10-50µg/ml. Accuracy was performed by using a recovery study. The amount of drug recovered was found to be in the range of 99.01-100.1%. The % RSD value was found to be less than 2. Conclusion: The developed UV spectrophotometric method was found to be simple, economic, sensitive, easy, accurate, linear, specific and highly sensitive and can be used for routine estimation of Oseltamivir Phosphate.

FT-IR Spectrophotometric Analysis of Ascorbic Acid and Biotin and their Pharmaceutical Formulations

2009 ◽  
Vol 42 (10) ◽  
pp. 1321-1327 ◽  
Author(s):  
Andrei A. Bunaciu ◽  
Elena Bacalum ◽  
Hassan Y. Aboul-Enein ◽  
Gabriela Elena Udristioiu ◽  
Şerban Fleschin
Keyword(s):  
Ascorbic Acid ◽  
Pharmaceutical Formulations ◽  
Spectrophotometric Analysis ◽  
Ft Ir

scholarly journals Removal of Cr(VI) From Water Resources by Using Different Raw Inorganic Sorbents

2017 ◽  
Vol 14 (3-4) ◽  
Author(s):  
Hamdije Memedi ◽  
Katerina Atkovska ◽  
Kiril Lisichkov ◽  
Mirko Marinkovski ◽  
Stefan Kuvendziev ◽  
...  
Keyword(s):  
Water Resources ◽  
Ph Value ◽  
Spectrophotometric Analysis ◽  
Point Of Zero Charge ◽  
Natural Minerals ◽  
Mineralogical Characteristics ◽  
Bet Method ◽  
Ft Ir ◽  
The Republic

Natural minerals from different localities in the Republic of Macedonia are selected for elimination of Cr(VI) ions from water resources. For that aim are selected: aksil (Kriva Palanka), trepel (Bitola), SiO2 amorphous (Kozuf), pemza (Bojanciste). In this study, their adsorption capacity is analyzed using spectrophotometric method (UV/VIS Spectrophotometer). Results from the spectrophotometric analysis in all used examples gave us insight for the starting concentration of Cr(VI) before adsorption and concentration after adsorption. The physical, chemical and mineralogical characteristics of adsorbents are studied. XRD, TGA-DTA and FT-IR analysis are used for characterization of natural mineral materials. The surface area of the sorbents were measured by BET method. With aim to determine the optimum pH value for maximal removal of Cr(VI) ions, the point of zero charge, pHPZC, for investigated materials were obtained. The aim of the study is to select which adsorbent is more efficient for elimination of Cr(VI) from water resources. According to obtained results all of them were successful in elimination of Cr(VI), but more efficient and economic is trepel.

FT‐IR Spectrophotometric Analysis of Chromium (Tris) Picolinate and its Pharmaceutical Formulations

2006 ◽  
Vol 39 (7) ◽  
pp. 1401-1410 ◽  
Author(s):  
Andrei A. Bunaciu ◽  
Hassan Y. Aboul‐Enein ◽  
Şerban Fleschin
Keyword(s):  
Pharmaceutical Formulations ◽  
Spectrophotometric Analysis ◽  
Ft Ir

Quantitative analysis of bucillamine and its pharmaceutical formulation using FT-IR spectroscopy

Il Farmaco ◽  
2005 ◽  
Vol 60 (8) ◽  
pp. 685-688 ◽  
Author(s):  
Andrei A. Bunaciu ◽  
Hassan Y. Aboul-Enein ◽  
Şerban Fleschin
Keyword(s):  
Quantitative Analysis ◽  
Ir Spectroscopy ◽  
Pharmaceutical Formulation ◽  
Ft Ir ◽  
Ft Ir Spectroscopy

Extraction and applications of aluminum hydroxide from bauxite for commercial consumption

2019 ◽  
Author(s):  
Chem Int
Keyword(s):  
Solvent Extraction ◽  
Aluminum Hydroxide ◽  
Red Mud ◽  
Spectrophotometric Analysis ◽  
Recycling Process ◽  
Smelting Method ◽  
Ft Ir ◽  
Bauxite Ore ◽  
Magnetic Recovery ◽  
Clear Solution

Bauxite ore was collected from Khyber Pakhtun Khawa (KPK), Pakistan for extraction of aluminum in the form of aluminum hydroxide. The ore consists of 31.11% aluminum and other minerals (SiO2, Fe2O3, Na2O, CaO) was leached with alkaline solution. The aluminum extraction in the form of aluminum hydroxide from the clear solution in filtrate was successfully done by different processes involving autoclave, centrifuge and solvent extraction while the red mud in the form of residue was separated and recycled. The recycling process of iron from red mud was divided into roasting magnetic recovery, the reducing smelting method for iron separation. After extraction the composition of Al, Fe, Si, and Ca were determined from aluminum hydroxide and red mud both by chemical and spectrophotometric analysis. The compound was further characterized by FT-IR and results showed that a considerable amount of aluminum in the form of aluminum hydroxide was extracted along with other minerals.

FT-IR microspectroscopic analysis of diseased white matter brain tissues

1995 ◽  
Vol 53 ◽  
pp. 968-969
Author(s):  
Steven M. Le Vine ◽  
David L. Wetzel
Keyword(s):  
White Matter ◽  
Gray Matter ◽  
Twitcher Mouse ◽  
Grid Pattern ◽  
Marked Contrast ◽  
Spatially Resolved ◽  
Ft Ir ◽  
Ir Microspectroscopy ◽  
Chemical Evidence

In situ FT-IR microspectroscopy has allowed spatially resolved interrogation of different parts of brain tissue. In previous work the spectrrscopic features of normal barin tissue were characterized. The white matter, gray matter and basal ganglia were mapped from appropriate peak area measurements from spectra obtained in a grid pattern. Bands prevalent in white matter were mostly associated with the lipid. These included 2927 and 1469 cm-1 due to CH2 as well as carbonyl at 1740 cm-1. Also 1235 and 1085 cm-1 due to phospholipid and galactocerebroside, respectively (Figs 1and2). Localized chemical changes in the white matter as a result of white matter diseases have been studied. This involved the documentation of localized chemical evidence of demyelination in shiverer mice in which the spectra of white matter lacked the marked contrast between it and gray matter exhibited in the white matter of normal mice (Fig. 3).The twitcher mouse, a model of Krabbe’s desease, was also studied. The purpose in this case was to look for a localized build-up of psychosine in the white matter caused by deficiencies in the enzyme responsible for its breakdown under normal conditions.

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