Simultaneous Determination of Eight Hypotensive Drugs of Various Chemical Groups in Pharmaceutical Preparations by HPLC-DAD

2015 ◽  
Vol 98 (6) ◽  
pp. 1542-1548 ◽  
Author(s):  
Mariusz Stolarczyk ◽  
Urszula Hubicka ◽  
Barbara Zuromska-Witek ◽  
Jan Krzek
Keyword(s):  
Simultaneous Determination ◽  
Pharmaceutical Preparations ◽  
Dosage Forms ◽  
Hplc Method ◽  
Diode Array ◽  
Pharmaceutical Dosage Forms ◽  
Accuracy And Precision ◽  
Array Detection ◽  
Chemical Groups

Abstract A new sensitive, simple, rapid, and precise HPLC method with diode array detection has been developed for separation and simultaneous determination of hydrochlorothiazide, furosemide, torasemide, losartane, quinapril, valsartan, spironolactone, and canrenone in combined pharmaceutical dosage forms. The chromatographic analysis of the tested drugs was performed on an ACE C18, 100 Å, 250 × 4.6 mm, 5 μm particle size column with 0;0.05M phosphate buffer (pH = 3.00)–acetonitrile–methanol (30 + 20 + 50 v/v/v) mobile phase at a flow rate of 1.0 mL/min. The column was thermostatted at 25°C. UV detection was performed at 230 nm. Analysis time was 10 min. The elaborated method meets the acceptance criteria for specificity, linearity, sensitivity, accuracy, and precision. The proposed method was successfully applied for the determination of the studied drugs in the selected combined dosage forms.

A Validated HPLC Method for Simultaneous Determination of Perindopril Arginine, Amlodipine, and Indapamide: Application in Bulk and in Different Pharmaceutical Dosage Forms

2017 ◽  
Vol 100 (4) ◽  
pp. 992-999 ◽  
Author(s):  
Ramzia I El-Bagary ◽  
Ehab F Elkady ◽  
Shereen Mowaka ◽  
Maria A Attallah
Keyword(s):  
Potassium Dihydrogen Phosphate ◽  
Pharmaceutical Preparations ◽  
Dosage Forms ◽  
Hplc Method ◽  
Dihydrogen Phosphate ◽  
Pharmaceutical Dosage Forms ◽  
Potassium Dihydrogen ◽  
Accuracy And Precision ◽  
Significant Difference

Abstract A simple, accurate, and precise LC method with a reversed stationary phase was developed and validated for the determination of perindopril (PER) arginine, amlodipine (AML), and indapamide (IND) alone and in binary mixtures (PER arginine is found in two dosage forms, i.e., with either AML or IND). Chromatographic separation was carried out on a BDS Hypersil® C18 column (100 × 3 mm, 5 μm). The mobile phase, consisting of 0.05 M potassium dihydrogen phosphate buffer (pH 2.6)–methanol (50 + 50, v/v), was pumped through the column whose temperature was maintained at 50°C at a flow rate of 0.6 mL/min using isocratic elution, and UV detection at 215 nm was performed. Acceptable values of linearity, accuracy, and precision of the method were found over the concentration ranges of 5–80 μg/mL PER, 2.5–80 μg/mL AML, and 0.5–20 μg/mL IND. The proposed chromatographic method was statistically compared to that of reference methods using one-way analysis of variance. The results showed that there was no significant difference between the methods. The developed method proved reliable for use in accurate QC of the drugs in their pharmaceutical preparations.

scholarly journals High performance liquid chromatography for simultaneous determination of xipamide, triamterene and hydrochlorothiazide in bulk drug samples and dosage forms

2016 ◽  
Vol 66 (1) ◽  
pp. 109-118 ◽  
Author(s):  
Soad S. Abd El-Hay ◽  
Hisham Hashem ◽  
Ayman A. Gouda
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Simultaneous Determination ◽  
High Performance ◽  
Dosage Forms ◽  
Hplc Method ◽  
Pharmaceutical Dosage Forms ◽  
Temperature Detection ◽  
Bulk Drug

Abstract A novel, simple and robust high-performance liquid chromatography (HPLC) method was developed and validated for simultaneous determination of xipamide (XIP), triamterene (TRI) and hydrochlorothiazide (HCT) in their bulk powders and dosage forms. Chromatographic separation was carried out in less than two minutes. The separation was performed on a RP C-18 stationary phase with an isocratic elution system consisting of 0.03 mol L−1 orthophosphoric acid (pH 2.3) and acetonitrile (ACN) as the mobile phase in the ratio of 50:50, at 2.0 mL min−1 flow rate at room temperature. Detection was performed at 220 nm. Validation was performed concerning system suitability, limits of detection and quantitation, accuracy, precision, linearity and robustness. Calibration curves were rectilinear over the range of 0.195–100 μg mL−1 for all the drugs studied. Recovery values were 99.9, 99.6 and 99.0 % for XIP, TRI and HCT, respectively. The method was applied to simultaneous determination of the studied analytes in their pharmaceutical dosage forms.

scholarly journals HPLC METHOD FOR SIMULTANEOUS DETERMINATION OF METFORMIN AND SITAGLIPTIN IN PHARMACEUTICAL DOSAGE FORMS AND ITS APPLICATIONS TO DISSOLUTION STUDY

2019 ◽  
Vol 3 (7) ◽  
Author(s):  
Hemraj Sharma ◽  
Boya Madhuri ◽  
Yiragamreddy Padmanabha Reddy ◽  
Kondareddy Vinod Kumar ◽  
Nanda Kishor Bhatta ◽  
...  
Keyword(s):  
Simultaneous Determination ◽  
High Performance ◽  
High Performance Liquid Chromatographic ◽  
Dosage Forms ◽  
Hplc Method ◽  
Uv Detector ◽  
Pharmaceutical Dosage Forms ◽  
Dissolution Study ◽  
Rp Hplc

A novel approach was used to develop and validate a rapid, specific, accurate and precise Reverse phase High performance liquid chromatographic (RP-HPLC) method for the simultaneous determination of Metformin and Sitagliptin in pharmaceutical dosage forms and its applications to dissolution study. The chromatographic separation was carried out on a C8 (250mm X 4.6 mm i.d., 5μm) column with a mobile phase of 40 Acetonitrile: 60 Phosphate Buffer (pH 6.8), using UV detector at 257 nm at 1ml min-1 flow rate. The retention time for Metformin was 2.11 minutes and 5.30 minutes for Sitagliptin. The Linearity for Metformin was found to be 10-80 µg ml-1 with R2 value of 0.9998 and for Sitagliptin 1-8 µg ml-1 with R2 value of 0.9976. Dissolution study of both for Metformin and Sitagliptin was carried, Percentage of drug release was established which was found to be 96.23% and 102.64% respectively, in the period of 50 minutes. Keywords: RP-HPLC, Metformin, Sitagliptin, Dissolution study

scholarly journals Optimization of Two Flow-Injection Spectrophotometric Methods for the Determination of Indapamide in Pharmaceutical Dosage Forms

2005 ◽  
Vol 88 (4) ◽  
pp. 1148-1154 ◽  
Author(s):  
Juan C Rodríguez ◽  
Julia Barciela ◽  
Sagrario García ◽  
Carlos Herrero ◽  
Rosa M Peña
Keyword(s):  
Flow Injection ◽  
Screening Method ◽  
Pharmaceutical Preparations ◽  
Dosage Forms ◽  
Response Surfaces ◽  
Subsequent Formation ◽  
Pharmaceutical Dosage Forms ◽  
Spectrophotometric Methods ◽  
Accuracy And Precision

Abstract Multivariate experimental design has been used to optimize 2 flow-injection spectrophotometric methods for the determination of indapamide in pharmaceutical dosage forms, both pure and commercial tablets. The methods are based on the oxidation of this drug with iron (III) in acidic medium and the subsequent formation of an intensive orange-red complex between the liberated iron (II) and 2,2′-bipyridyl or 1,10-phenanthroline reagents. Plackett-Burman designs were applied as a screening method to evaluate the most significant factors with few experiments. Central composite 23+ star designs were performed to evaluate the response surfaces. The methods have been fully validated and were applied successfully to the determination of indapamide in pure and pharmaceutical forms with good accuracy and precision. Therefore, the 2 proposed procedures are simple, inexpensive, and rapid flow methods for the routine determination of indapamide in pharmaceutical preparations.

Stability-Indicating TLC-Densitometric and HPLC Methods for the Simultaneous Determination of Piracetam and Vincamine in the Presence of Their Degradation Products

2016 ◽  
Vol 99 (6) ◽  
pp. 1490-1498 ◽  
Author(s):  
Amal B Ahmed ◽  
Maha M Abdelrahman ◽  
Nada S Abdelwahab ◽  
Fathy M Salama
Keyword(s):  
Simultaneous Determination ◽  
Degradation Products ◽  
Hplc Method ◽  
Pharmaceutical Formulation ◽  
Stability Indicating ◽  
Rp Hplc ◽  
Accuracy And Precision ◽  
Array Detection ◽  
Assay Methods

Abstract Newly established TLC-densitometric and RP-HPLC methods were developed and validated for the simultaneous determination of Piracetam (PIR) and Vincamine (VINC) in their pharmaceutical formulation and in the presence of PIR and VINC degradation products, PD and VD, respectively. The proposed TLC-densitometric method is based on the separation and quantitation of the studied components using a developing system that consists of chloroform–methanol–glacial acetic acid–triethylamine (8 + 2 + 0.1 + 0.1, v/v/v/v) on TLC silica gel 60 F254 plates, followed by densitometric scanning at 230 nm. On the other hand, the developed RP-HPLC method is based on the separation of the studied components using an isocratic elution of 0.05 M KH2PO4 (containing 0.1% triethylamine adjusted to pH 3 with orthophosphoric acid)–methanol (95 + 5, v/v) on a C8 column at a flow rate of 1 mL/min with diode-array detection at 230 nm. The developed methods were validated according to International Conference on Harmonization guidelines and demonstrated good accuracy and precision. Moreover, the developed TLC-densitometric and RP-HPLC methods are suitable as stability-indicating assay methods for the simultaneous determination of PD and VD either in bulk powder or pharmaceutical formulation. The results were statistically compared with those obtained by the reported RP-HPLC method using t- and F-tests.

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