scholarly journals Development and Validation of Acyclovir HPLC External Standard Method in Human Plasma: Application to Pharmacokinetic Studies

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Selvadurai Muralidharan ◽  
Jayarajakumar Kalaimani ◽  
Subramani Parasuraman ◽  
Sokkalingam Arumugam Dhanaraj
Keyword(s):  
Human Plasma ◽  
Limit Of Detection ◽  
Hplc Method ◽  
Pharmacokinetic Studies ◽  
Bioanalytical Method ◽  
Fundamental Parameters ◽  
External Standard Method ◽  
Limit Of Quantitation ◽  
External Standard ◽  
Development And Validation

A simple, rapid, and selective RP-HPLC method was developed for the estimation of acyclovir in human plasma. The method involves a simple protein precipitation technique. Chromatographic separation was carried out on a reverse phase C18 column using mixture of 5 mM ammonium acetate (pH 4.0) and acetonitrile (40 : 60, v/v) at a flow rate of 1.0 mL/min with UV detection at 290 nm. The retention time of acyclovir was 4.12 minutes. The method was validated and found to be linear in the range of 25.0–150.0 ng/mL. Validation studies were achieved by using the fundamental parameters, including accuracy, precision, selectivity, sensitivity, linearity and range, stability studies, limit of detection (LOD), and limit of quantitation (LOQ). It shows recovery at 91.0% which is more precise and accurate compared to the other method. These results indicated that the bioanalytical method was linear, precise, and accurate. The new bioanalytical method was successfully applied to a pharmacokinetic linearity study in human plasma.

scholarly journals Reversed phase HPLC for strontium ranelate: Method development and validation applying experimental design

2018 ◽  
Vol 68 (2) ◽  
pp. 171-183
Author(s):  
Béla Kovács ◽  
Lajos Kristóf Kántor ◽  
Mircea Dumitru Croitoru ◽  
Éva Katalin Kelemen ◽  
Mona Obreja ◽  
...  
Keyword(s):  
Experimental Design ◽  
Strontium Ranelate ◽  
Method Development ◽  
Limit Of Detection ◽  
Cost Effective ◽  
Reversed Phase ◽  
Hplc Method ◽  
Intermediate Precision ◽  
Limit Of Quantitation ◽  
Development And Validation

Abstract A reverse-phase HPLC (RP-HPLC) method was developed for strontium ranelate using a full factorial, screening experimental design. The analytical procedure was validated according to international guidelines for linearity, selectivity, sensitivity, accuracy and precision. A separate experimental design was used to demonstrate the robustness of the method. Strontium ranelate was eluted at 4.4 minutes and showed no interference with the excipients used in the formulation, at 321 nm. The method is linear in the range of 20–320 μg mL−1 (R2 = 0.99998). Recovery, tested in the range of 40–120 μg mL−1, was found to be 96.1–102.1 %. Intra-day and intermediate precision RSDs ranged from 1.0–1.4 and 1.2–1.4 %, resp. The limit of detection and limit of quantitation were 0.06 and 0.20 μg mL−1, resp. The proposed technique is fast, cost-effective, reliable and reproducible, and is proposed for the routine analysis of strontium ranelate.

scholarly journals Development and Validation of a RP-HPLC Method for Quantitative Analysis of Linagliptin in Bulk and Dosage Forms

2018 ◽  
Vol 17 (2) ◽  
pp. 175-182
Author(s):  
Joy Chandra Rajbangshi ◽  
Md Mahbubul Alam ◽  
Md Shahadat Hossain ◽  
Md Samiul Islam ◽  
Abu Shara Shamsur Rouf
Keyword(s):  
Limit Of Detection ◽  
Dosage Forms ◽  
Hplc Method ◽  
Pharmaceutical Dosage Forms ◽  
Rp Hplc ◽  
System Suitability ◽  
Relative Standard ◽  
Limit Of Quantitation ◽  
Precision Limit ◽  
Development And Validation

This research was aimed to establish a versatile, sensitive, rapid and validated RP-HPLC method to analyze linagliptin in bulk as well as in pharmaceutical dosage forms. Liquid chromatography was performed on HPLC system and 20μl of samples were injected into a C18 column (150 x 4.6 mm i.d., 5μm particle size) and the eluents were monitored through a PDA detector at 239 nm. An isocratic method with a flow rate of 1 ml/min was used to elute the compounds with a mobile phase comprised of 70:30 v/v mixture of phosphate buffer (pH 6.8±0.2) and acetonitrile. The retention time of the compound was found to be 2.8 minutes. According to the ICH Q2(R1) guidelines, the method was validated by establishing several analytical parameters such as system suitability, specificity, linearity, accuracy, precision, limit of detection (LOD), limit of quantitation (LOQ), ruggedness and robustness to assay linagliptin. The method showed good linearity (R2 = 0.9981) over the concentration ranges of 40 – 60 μg/ml with a recovery between 99.48% ± 0.38% RSD to 100.22% ± 0.011% RSD, whereas the LOD and LOQ values were 0.05 μg/ml and 0.15 μg/ml, respectively. The relative standard deviation (% RSD) for inter-day and intra-day precision was not more than 2.0%. Hence, the proposed method can be applied accurately for research and routine analysis of linagliptin in bulk as well as different pharmaceutical dosage forms. Dhaka Univ. J. Pharm. Sci. 17(2): 175-182, 2018 (December)

scholarly journals Development and Validation of RP-HPLC Method for Azilsartan Medoxomil Potassium Quantitation in Human Plasma by Solid Phase Extraction Procedure

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Paras P. Vekariya ◽  
Hitendra S. Joshi
Keyword(s):  
Solid Phase Extraction ◽  
Human Plasma ◽  
Limit Of Detection ◽  
Solid Phase ◽  
Hplc Method ◽  
Array Detector ◽  
Phase Extraction ◽  
Rp Hplc ◽  
Limit Of Quantitation ◽  
Azilsartan Medoxomil

Simple and rapid reverse phase high-performance liquid chromatography (RP-HPLC) method was developed and validated using solid phase extraction (SPE) technique for the determination of Azilsartan Medoxomil Potassium (AMP) in human plasma; detection was carried out by photo diode array detector. Chromatographic separation of the analyte AMP was achieved within 7.5 min by Waters symmetry C18 (4.6 × 250 mm, 5 µm) column, mobile phase was 25 mM ammonium acetate buffer (pH 5.5): acetonitrile 55 : 45 v/v, flow rate was 1.0 mL/min, and the detection was carried out at 254 nm. Calibration curve was linear (r2 > 0.9985) in the range of 1.0–9.0 µg/mL, limit of detection (LOD) and limit of quantitation (LOQ) were 0.150 µg/mL and 0.400 µg/mL, respectively, and intra- and interday deviations were between 1.53–8.41% and 1.78–4.59%, respectively. The overall mean recovery of AMP was 92.35%. No any endogenous constituents were found to interfere at retention time of the analyte. This new RP-HPLC method was successfully validated and may be applied to conduct bioavailability and bioequivalence studies of AMP.

scholarly journals Development and validation of HPLC-UV method for the quantitative analysis of carcinogenic organic impurities and its isomers in the sodium polystyrene sulfonate polymer

2020 ◽  
Author(s):  
Pushpavati Zinjad ◽  
Priyanka Gondhale ◽  
Shrikant Kulkarni ◽  
Bhaskar Musmade ◽  
Shrinivas Bhope ◽  
...  
Keyword(s):  
Limit Of Detection ◽  
Hplc Method ◽  
Sodium Polystyrene Sulfonate ◽  
Solution Stability ◽  
Polystyrene Sulfonate ◽  
United States Pharmacopoeia ◽  
Organic Impurities ◽  
Limit Of Quantitation ◽  
Bulk Drug ◽  
Development And Validation

Abstract Sodium polystyrene sulfonate (SPS) powder is in use for over 50 years for the treatment of hyperkalemia. SPS powder is official in United States Pharmacopoeia, British Pharmacopoeia and European Pharmacopoeia. However, till date, no study has been published on the assessment of organic impurities for this drug. The organic impurities in bulk drug and finished product are associated with their safety, efficacy and stability. A simple, rapid, specific, precise and an accurate HPLC method has been developed for the estimation of toxic organic impurities like styrene, naphthalene, divinyl benzene (DVB) and ethylvinyl benzene (EVB) from SPS bulk drug and finished product. The developed method was validated for specificity, accuracy, precision, linearity, limit of detection (LOD), limit of quantitation (LOQ), solution stability, ruggedness and robustness. The influence of acid, alkali, oxidative stress, photolytic stress, thermal stress and humidity stress conditions on SPS bulk powder and finished product has been studied and reported. The proposed method can be successfully employed for the impurity testing of commercial batches of the bulk drug and finished products of both sodium salt and calcium salt of polystyrene sulfonate.

scholarly journals Bioanalytical Method Development and Validation for the Determination of Favipiravir in Spiked Human Plasma by using RP-HPLC

2021 ◽  
pp. 275-281
Author(s):  
Pallavi V. Duse ◽  
Kamalkishor G. Baheti
Keyword(s):  
Human Plasma ◽  
Hplc Method ◽  
Therapeutic Drug ◽  
Pharmacokinetic Studies ◽  
Gradient System ◽  
Spiked Human Plasma ◽  
Rp Hplc ◽  
Relative Standard ◽  
Limit Of Quantitation

A precise, simple and reproducible reverse phase liquid chromatography (RP-HPLC) method was developed and validated for determination of Favipiravir by using Carbamazepine as internal standard in spiked human plasma. A chromatographic separation was accomplished with Cromasil C18 (250mm x 4.6ID, Particle size: 5 micron) column using mobile phase consists of methanol: water in the ratio (35:65, %v/v), at pH 3.0 with binary gradient system-maintained flow rate at 0.8ml/min. The detection wavelength of drug sample was at 225 nm. Extraction was done by using ethyl acetate as extracting solvent. The retention time of Favipiravir was found to be 6.62 min.  The method was found to be linear in the concentration range of 0.2-3.2 µg/ml. Limit of quantitation (LOQ) value was found to be 0.72. The intra- and inter day precision and accuracy lies within the specified range. The recovery studies were found to be in the range of 97.6 to 100.2%. %Relative standard deviation (RSD) was found to be in the range of 0.07-2.80%. All parameters were found to be validated from spiked human plasma. The proposed RP-HPLC method is highly accurate and rapid for the determination of favipiravir in human plasma and can be applied for pharmacokinetic studies and Therapeutic drug monitoring.

DEVELOPMENT AND VALIDATION OF RP HPLC METHOD FOR THE ESTIMATION OF SOFOSBUVIR IN BULK, TABLET AND INDUSTRIAL WASTE WATER

INDIAN DRUGS ◽  
2019 ◽  
Vol 56 (06) ◽  
pp. 59-66
Author(s):  
V Dhanunjayachary ◽  
◽  
V.L.S. Likhitha ◽  
Sri K. Vijaya ◽  
M. A Madhuri
Keyword(s):  
Industrial Waste ◽  
Limit Of Detection ◽  
Hplc Method ◽  
Limit Of Quantification ◽  
Pharmaceutical Dosage Form ◽  
Rp Hplc ◽  
Ich Guidelines ◽  
System Suitability ◽  
Limit Of Quantitation ◽  
Development And Validation

The study was aimed at development and validation of RP-HPLC method for estimation of sofosbuvir in bulk, pharmaceutical dosage form and pharmaceutical industrial waste. The chromatographic separation was performed on Agilent Syncronis C 18 (100 mm × 4.6 mm, 5μm) column, with a mobile phase comprising of a mixture of methanol: acetonitrile: water (45:30:25 v/v/V). The flow rate was 1.0 mL/min with detection at 260 nm. Retention time of sofosbuvir was found to be 2.040 min. As per ICH guidelines, the method was validated for linearity, accuracy, limit of detection, limit of quantitation, precision, robustness and system suitability. Linearity was found to be in the range of 4-24 μg/mL with regression equation y = 675284.x + 49120 and correlation coefficient 0.999. The low % RSD values indicate the method to be accurate and precise. The limit of detection (LOD) and limit of quantification (LOQ) were found to be 0.046 and 0.1400 μg/mL, respectively. The % recovery of tablets was found to be in the range of 99.9– 101.3%. It can be concluded that this validated HPLC method is easy, precise, accurate, sensitive and selective for estimation of sofosbuvir in bulk, tablet and applicable for analyses of in pharmaceutical industrial waste.

scholarly journals Development and Validation of UV-Spectrophotometric and HPLC Method determination of Dofetilide in Formulation

2020 ◽  
Vol 13 (2) ◽  
pp. 60-70
Author(s):  
Harsha Dhurve ◽  
Yasmini Parshuramkar ◽  
Milind Umekar ◽  
Krishna Gupta
Keyword(s):  
Detection Limit ◽  
Limit Of Detection ◽  
Hplc Method ◽  
Ich Guidelines ◽  
Limit Of Quantitation ◽  
Label Claim ◽  
Photodiode Array ◽  
Development And Validation ◽  
Good Agreement

A new, simple, specific and economic UV Spectrophotometric method and HPLC method for the estimation of Dofetilide content in bulk and laboratory prepared mixture. UV spectrophotometric detection was carried out at absorption maxima (λmax) at 231nm using methanol as a solvent. The quantitation of drug was carried out using A1% 1cm at 231nm and Beer’s law was obeyed in the concentration range of 2.5-20 μg/ml, with correlation coefficient value less than 1.The chromatographic separation was carried on a C-18 (250 mm × 4.6 mm, 5μ) column using an isocratic mode with a mixture of Acetonitrile:Phosphate Buffer (pH-7) in the ratio of 55:45% v/v as a mobile phase. The flow rate was 1.5ml/min, temperature is maintained at ambient and detection was made at 231 nm using Photodiode array (PDA) detector. The developed method was validated according to ICH guidelines and different analytical parameters such as linearity, precision, accuracy, specificity, limit of detection, limit of quantitation were determined. The percent amount of drug estimated was nearly 100%, found to be a good agreement with label claim of prepared laboratory mixture. The proposed method was validated for its accuracy, precision, robustness, ruggedness, linearity, limit of detection, limit of quantitation and was found to be in range (% RSD<2.0 and SD <±2.0). Both methods were validated and found to be simple, sensitive, accurate, and precise. The results of the study and statistical data proved the applicability of the present method in routine analysis of Dofetilide in bulk as well as laboratory prepared mixture.

scholarly journals BIO-ANALYTICAL METHOD DEVELOPMENT AND VALIDATION FOR SIMULTANEOUS DETERMINATION OF LEDIPASVIR AND SOFOSBUVIR DRUGS IN HUMAN PLASMA BY RP-HPLC METHOD

2018 ◽  
Vol 10 (3) ◽  
pp. 21 ◽  
Author(s):  
Buyya Shyam Sunder ◽  
Ashutosh Kumar Mittal
Keyword(s):  
Human Plasma ◽  
High Performance ◽  
Method Development ◽  
Hplc Method ◽  
Pharmacokinetic Studies ◽  
Buffer Solution ◽  
Stability Of Solution ◽  
Drug Concentrations ◽  
The Stability ◽  
Development And Validation

Objective: A novel, sensitive and accurate high-performance liquid chromatography with ultraviolet/visible light detection (HPLC-UV/VIS) method for the quantification of ledipasvir and Sofosbuvir in plasma was developed and validated. Methods: The analytes were extracted by liquid-liquid extraction method and chromatograph using a mobile phase consisting of acetonitrile and buffer solution, Methanol and Acetonitrile in the ratio of 200:600:200 (v/v) using Oyster BDS RP-C18 column. The flow rate 1.0 ml/min and UV detection at 238 nm were employed. The retention time for Ledipasvir and Sofosbuvir was 4.61 and 9.09 min respectively. Linearity for ledipasvir and Sofosbuvir was found to be in the range of 250-2000 ng/ml for both drugs respectively. Intra-and inter-day precision was less than 2% coefficient of variation.Results: The method was validated as per the USFDA guidelines and the results were within the acceptance criteria for selectivity, sensitivity, linearity, precision, accuracy, recovery stability of the solution, the stability of solution in plasma and dilution integrity.Conclusion: Majority of the HPLC method should be useful for monitoring human plasma drug concentrations, and pharmacokinetic studies in patients diagnosed with the Ledipasvir and Sofosbuvir formulations.

scholarly journals A SIMPLE AND RUGGED BIOANALYTICAL METHOD DEVELOPMENT AND VALIDATION OF BRIVUDINE IN HUMAN PLASMA BY USING HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY

2020 ◽  
pp. 45-50
Author(s):  
S. SATHESHKUMAR ◽  
V. MURUGANANTHAM
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Human Plasma ◽  
High Performance ◽  
Method Development ◽  
Limit Of Detection ◽  
Research Work ◽  
Bioanalytical Method ◽  
Method Development And Validation ◽  
Development And Validation

Objective: The current research work focus to simple and rugged bioanalytical method development and validation of brivudine in human plasma using high-performance liquid chromatography. Methods: The analyte (Brivudine) and internal standard (Sofosbuvir) were extracted using the Solid Phase Extraction (SPE) technique. The chromatographic separation was accomplished by using Zorbax eclipse XDB-C18 Column (150×4.6 mm, 5 μm) with a mobile phase consisted of Methanol: 0.5% Ortho-phosphoric acid (65:35%, v/v) respectively, at a flow rate of 0.7 mL/min. The developed method was validated by performing system suitability, carryover effect, linearity, selectivity, sensitivity, precision, accuracy, recovery, ruggedness, and stability studies. The method was validated as per USFDA guidelines. Results: The selected chromatographic condition was found to efficiently separated brivudine (RT-3.55 min) and ISTD (RT-7.87 min). The assay demonstrated a linear dynamic range of 85.205 to 4500.246 ng/ml for brivudine in human plasma with r2>0.99. Demonstrated the lowest limit of detection at 85.205 ng/ml. This method established an intra-run and inter-run precision within the range of 2.99-6.31%CV and 3.67-5.80%CV, respectively. Additional intra-run and inter-run accuracy were within the range of 97.55-105.37% and 99.27-102.15%, respectively. The mean percentage recovery of brivudine and ISTD studies proved good extraction efficiency and the robustness was also evaluated. Conclusion: A simple, accurate, precise, linear and rugged RP-HPLC method was developed and validated for the estimation of brivudine in human plasma with K2EDTA anticoagulant and suitable for conducting BA/BE and TDM.

scholarly journals Analytical Method Development and Validation for the Estimation of Canagliflozin in Bulk and Formulation by RP- HPLC

2018 ◽  
Vol 10 (03) ◽  
Author(s):  
Darshan Bhatt ◽  
Padmini Thatavarthi ◽  
B. Rajkamal
Keyword(s):  
High Performance ◽  
Chromatographic Method ◽  
Method Development ◽  
Limit Of Detection ◽  
High Performance Liquid Chromatographic ◽  
Hplc Method ◽  
Rp Hplc ◽  
Limit Of Quantitation ◽  
Development And Validation ◽  
Liquid Chromatographic

A simple and sensitive reverse phase high performance liquid chromatographic method was developed and successively validated for the estimation of Canagliflozin. In the new method, Canagliflozin separation was carried out by the nonpolar inertsil ODS-3 (250 × 4.6 mm, 5μ) column with a mobile phase composition of Ammonium acetate buffer (pH-4.5) and Acetonitrile in the ratio of 30:70% v/v. Canagliflozin was determined at 252 nm using UV detection and the compound was eluted at the retention time of 4.5 min. As per International Conference on Harmonization (ICH) guidelines, the method was validated and the parameters were precision, accuracy, linearity, limit of detection, limit of quantitation and robustness. The chromatographic method was accurate, linear, specific, precise and robust. The results of method concluded that the proposed RP-HPLC method is useful, convenient and reliable in regular analysis of Canagliflozin in bulk and its formulation

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