scholarly journals Determination of Acetyl Salicylic Acid in Aspirin tablets

2019 ◽  
Vol 4 (2) ◽  
pp. 151-157
Author(s):  
Lana Mohammed Ali ◽  
Mariwan Abdulla Hama Salih ◽  
Omed Ismael Hayder
Keyword(s):  
Salicylic Acid ◽  
Reference Value ◽  
Drug Analysis ◽  
High Rate ◽  
Acetyl Salicylic Acid ◽  
Active Components ◽  
Direct Titration ◽  
Back Titration ◽  
Hplc Technique

Drug analysis is an important method for determination of active components of any therapeutic drugs. HPLC, Spectrometry, Direct titration and Back-titration are common effective techniques in drug analysis. They were used in this study in a comparative way for the determination of the correct amount of acetyl salicylic acid in aspirin formulations. The aim of this study is to analysis of aspirin and compares both Direct titration and Back-titration techniques to the standard HPLC technique in order to find alternative, the easy and cheaper procedure to assess the quality of active components of medications aspirin in particular in Sulaimani city. Additionally, Spectrophotometric technique were also used and compared with the standard HPLC method. The samples were collected from different local drug stores in which distribute medications to pharmacies and they were from different companies. The analyses were performed after preparing a solution from each of the samples with a standard solutions for titration procedures. Both direct and back-titration techniques were used to find the concentration of active components in aspirin samples then compared with the data from standard HPLC as a reference value. The study showed that those companies which provide medications to this region were used a standard amount of acetyl salicylic acid in aspirin tablets. The result from Spectrophotometric method showed more accurate than both direct and indirect titration when compared to the reference value from standard HPLC technique due to the high rate of accuracy and precision of this method. However, the result also showed some inconsistent data in terms of the back titration compared to direct titration due to the inaccuracy in back titration. This study concluded with the necessity for quality control to use all these techniques for monitoring all medications which interring this region.

scholarly journals Simultaneous Determination of Paracetamol, Acetyl Salicylic Acid, Mefenamic Acid and Cetirizine Dihydrochloride in the Pharmaceutical Dosage Form

2010 ◽  
Vol 7 (s1) ◽  
pp. S495-S503 ◽  
Author(s):  
Freddy H. Havaldar ◽  
Dharmendra L. Vairal
Keyword(s):  
Salicylic Acid ◽  
Mefenamic Acid ◽  
Dosage Form ◽  
Pharmaceutical Formulations ◽  
Reversed Phase ◽  
Hplc Method ◽  
Acetyl Salicylic Acid ◽  
Pharmaceutical Dosage Form ◽  
Constant Flow Rate

A simple, specific, accurate and economical isocratic reversed phase liquid chromatographic (RP-HPLC) method was developed and subsequently validated for the determination of paracetamol, acetyl salicylic acid, mefenamic acid and cetirizine dihydrochloride. Separation was achieved with a Nucleodur 100 C–18 column having 250 × 4.6 mm i.d. with 5 µm particle size and disodium hydrogen phosphate buffer adjusted to pH 6.5 using diluted orthophosphoric acid and acetonitrile (60:40 v∕v) as eluent at a constant flow rate of 1.0 mL per min. UV detection was performed at 220 nm. The retention time of acetyl salicylic acid, paracetamol, mefenamic acid and cetirizine dihydrochloride were 2.01 min, 2.92 min, 4.91 min and 10.2 min respectively. This method is simple, rapid and selective and can be used for routine analysis of analgesic and antipyretic drugs in pharmaceutical formulations. The proposed method was validated and successfully used for estimation of paracetamol, acetyl salicylic acid, mefenamic acid and cetirizine dihydrochloride in the pharmaceutical dosage form.

Flow-through UV spectrophotometric sensor for determination of (acetyl)salicylic acid in pharmaceutical preparations

2001 ◽  
Vol 216 (1-2) ◽  
pp. 95-104 ◽  
Author(s):  
Antonio Ruiz-Medina ◽  
Maria L Fernández-de Córdova ◽  
Pilar Ortega-Barrales ◽  
Antonio Molina-Dı́az
Keyword(s):  
Salicylic Acid ◽  
Pharmaceutical Preparations ◽  
Acetyl Salicylic Acid ◽  
Flow Through

Determination of Traces Heavy Metals from Solid Residues Formed by Combustion of Lignite in Relation to Degree of Accessibility in Soil and Plants

2017 ◽  
Vol 68 (10) ◽  
pp. 2363-2366
Author(s):  
Delia Nica Badea
Keyword(s):  
Heavy Metals ◽  
Power Plant ◽  
Thermal Power ◽  
Reference Value ◽  
Combustion Products ◽  
Toxic Heavy Metals ◽  
Area Of Influence ◽  
Risk Potential

The paper evaluates the presence and content of traces of heavy metals Hg, Pb, Ni, Cd (total forms) from coal and solid combustion products, the degree of transfer and accessibility in the area of influence of a lignite power plant. The content of toxic heavy metals in residues are characterized by RE Meiji [ 1 (Pb and Hg) and REMeij �1 (Ni and Cd) for the filter ash. Pb and Ni content in the soil exceeds normal values, and Pb exceeds and alert value for sensitive soils around the residue deposit (70.20 mg.Kg-1). The degree of accessibility of the metals in plants (TF), reported at the Khan reference value (0.5), indicates a significant bioaccumulation level for the metals: Cd (1.9) and Hg (0.6) inside the deposit; Cd (0.39) at the base of the deposit, Hg (0.8) in the area of the thermal power plant. The trace levels of heavy metals analyzed by GFAAS and CVAAS (Hg), indicates a moderate risk potential for food safety and quality of life in the studied area.

Simultaneous Determination of Six Components in Jingzhiguanxin Tablet by High-Performance Liquid Chromatography

2019 ◽  
Vol 15 (2) ◽  
pp. 130-137
Author(s):  
Hui Jiang ◽  
Lianhao Fu ◽  
Yu Wang ◽  
Shaozhi Wang ◽  
Xiaoxu Zhang ◽  
...  
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
High Performance ◽  
Gradient Elution ◽  
Tanshinone Iia ◽  
Array Detector ◽  
Control Analysis ◽  
Active Components ◽  
Quality Control Analysis

Background: Jingzhiguanxin (JZGX) tablet, a traditional Chinese prescription, is commonly used for treating coronary heart disease and angina pectoris in the clinic. There are six active components (Danshensu (DSS), Protocatechuic aldehyde (PD), Paeoniflorin (PF), Ferulic acid (FA), Salvianolic acid B (Sal B) and Tanshinone IIA (TA)) in JZGX tablet. </P><P> Objective: In this paper, a simple and reliable method was used for simultaneous determining the six active components by high-performance liquid chromatography coupled with diode array detector (HPLC-DAD). Methods: These six active components were separated on an Agilent Zorbax Eclipse XDB-C18 column (150 mmx4.6 mm, 5 µm) at 30 °C. Acetonitrile (A), methanol (B) and 0.5% H3PO4 aqueous solution (C) were used as mobile phase for gradient elution. The flow rate was 1 mL/min and the detection wavelengths were set at 280 nm for DSS, PD and Sal B, 230 nm for PF, 320 nm for FA and 270 nm for TA, respectively. Results: All of the six components showed good linearity regressions (r2≥0.9997) in the detected concentration range. The recovery rates and coefficient of variation (CV) for all analytes were 98.66%- 100.18% and 0.75%-1.89%, respectively. This method was successfully applied to simultaneously determine the six components in JZGX tablet from different batches and manufacturers. Conclusion: The validated method can be used in routine quality control analysis of JZGX tablet without any interference.

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