scholarly journals Bioanalytical Method Development and Validation of Memantine in Human Plasma by High Performance Liquid Chromatography with Tandem Mass Spectrometry: Application to Bioequivalence Study

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Ravi Kumar Konda ◽  
B. R. Challa ◽  
Babu Rao Chandu ◽  
Kothapalli B. Chandrasekhar
Keyword(s):  
Human Plasma ◽  
High Performance ◽  
Method Development ◽  
Dynamic Range ◽  
Quantitative Estimation ◽  
Multiple Reaction Monitoring ◽  
Internal Standard ◽  
Bioequivalence Study ◽  
Healthy Human ◽  
Development And Validation

A simple, sensitive, and rapid HPLC-MS/MS method was developed and validated for quantitative estimation of memantine in human plasma. Chromatography was performed on Zorbax SB-C18(4.6×75 mm, 3.5 μm) column. Memantine (ME) and internal standard Memantine-d6(MED6) were extracted by using liquid-liquid extraction and analyzed by LC-ESI-MS/MS using multiple-reaction monitoring (MRM) mode. The assay exhibited a linear dynamic range of 50.00–50000.00 pg/ml for ME in human plasma. This method demonstrated an intra- and interday precision within the range of 2.1–3.7 and 1.4–7.8%, respectively. Further intra- and interday accuracy was within the range of 95.6–99.8 and 95.7–99.1% correspondingly. The mean recovery of ME and MED6 was86.07±6.87and80.31±5.70%, respectively. The described method was successfully employed in bioequivalence study of ME in Indian male healthy human volunteers under fasting conditions.

Rapid, Sensitive and Simple LC-MS/MS Method Development and Validation for Estimation of Phenytoin in Human Plasma by using Deuterated Internal Standard

2021 ◽  
pp. 2937-2944
Author(s):  
Ajay I. Patel ◽  
Kishna Ram ◽  
Swati Guttikar ◽  
Amit Kumar J. Vyas ◽  
Ashok B. Patel ◽  
...  
Keyword(s):  
Liquid Chromatography ◽  
Human Plasma ◽  
High Performance ◽  
Method Development ◽  
Dynamic Range ◽  
Multiple Reaction Monitoring ◽  
Internal Standard ◽  
Limit Of Quantification ◽  
Validation Parameters ◽  
Tandem Mass Spectrometric

A rapid, sensitive, accurate and precise high-performance liquid chromatography–tandem mass spectrometric (HPLC– MS/MS) method equipped with Electro Spray Ionization (ESI) source, operating in the Positive ion and Multiple Reaction Monitoring (MRM) mode was developed and validated for the estimation of Phenytoin in human plasma using Phenytoin D10 as an internal standard. Liquid-liquid extraction (LLE) technique was used to extract analyte and ISTDs from 0.2mL human plasma. The analytical separation was carried out in a reverse phase liquid chromatography by using C18 (150 x 4.6mm, 5µm) column, and 2mM Ammonium Acetate in water (pH 6.3): Methanol (30:70% v/v) mobile phase at 1mL/min in isocratic mode. Analytes were monitored in multiple reactions monitoring (MRM) mode using the respective [M+H]⁺ ions, m/z 253.10→ 182.30 for Phenytoin and m/z 263.30 → 192.20 for the internal standard, respectively. The Phenytoin and Phenytoin D10 retained at about 2.50 and 2.46 minutes respectively with total run time of 4 minute. The response of the LC-ESI-MS/MS method for both analyte and ISTD was linear over the dynamic range of 60-12000ng/mL with correlation coefficient r2 ≥ 0.9963. The Accuracy was well within the accepted limit of ± 20% at lower limit of quantification (LLOQ) and ± 15% at all the other concentrations in the linear range. Recovery of drug and ISTD was 87.52% and 86.42%, respectively. This method was fully validated for all the validation parameters and Stability studies. After optimization, the Bioanalytical method was validated according to USFDA, EMA and ANVISA guidelines for Bioanalysis.

scholarly journals Development and validation of a rapid UHPLC-MS/MS method for the determination of fenofibric acid in human plasma: Application to a pharmacokinetic study of fenofibrate tablet in Chinese subjects

2020 ◽  
Author(s):  
Xiaorong Wu ◽  
Yankai Wang ◽  
Binbin Liang ◽  
Honghai Wu ◽  
Liying Wu ◽  
...  
Keyword(s):  
Human Plasma ◽  
Pharmacokinetic Study ◽  
High Performance ◽  
Multiple Reaction Monitoring ◽  
Internal Standard ◽  
Fenofibric Acid ◽  
The Matrix ◽  
Liquid Chromatography Tandem Mass ◽  
Development And Validation ◽  
Chinese Subjects

AbstractAn ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC–MS/MS) method was developed to determine the fenofibric acid (FA) in human plasma and applied to a pharmacokinetic study of fenofibrate tablet (Lipanthyl® supra, 160 mg) on Chinese subjects which had not been reported. Bezafibrate was used as an internal standard (IS), and the plasma samples were precipitated by methanol. Multiple reaction monitoring (MRM) mode was used to quantitatively analyzed FA m/z 317.2 → 230.7 and the IS m/z 360.0 → 274.0 in the electrospray ionization (ESI) negative interface. The calibration curves were linear over the range of 50–30,000  ng/mL (r2  ≥  0.996). The intra-day and inter-day precision (coefficient of variation, CV%) was less than 2.7 and 2.5%, respectively. The accuracy (relative error, RE%) ranged from −4.5 to 6.9%. The average recovery was higher than 86.2%, and the matrix effect was between 95.32 and 110.55%. The simple, rapid, and selectivity method was successfully applied to the pharmacokinetic study of fenofibrate tablets on Chinese subjects.

SENSITIVE BIO ANALYTICAL METHOD DEVELOPMENT AND VALIDATION OF VENETOCLAX IN HUMAN PLASMA BY LC-ESI-MS/MS

INDIAN DRUGS ◽  
2020 ◽  
Vol 57 (06) ◽  
pp. 32-38
Author(s):  
H. Potluri ◽  
Keyword(s):  
Human Plasma ◽  
Method Development ◽  
Multiple Reaction Monitoring ◽  
Internal Standard ◽  
Liquid Liquid Extraction ◽  
Liquid Chromatography Tandem Mass ◽  
Positive Mode ◽  
Method Development And Validation ◽  
Development And Validation

A specific and sensitive method of liquid chromatography–tandem mass spectrometry was demonstrated for the experimental determination of venetoclax in human plasma utilising venetoclax-D8 as an internal standard. The column Xbridge C18, 50 × 4.6mm, 5 µm was used for attaining chromatographic separation by utilising 10mM ammonium formate and methanol as isocratic mobile phase in the composition ratio of 20:80 (V/V). The flow-rate selected was 0.7ml/min. Venetoclax and venetoclax-D8 are identified in multiple reaction monitoring (MRM) positive mode with proton adducts at m/z 869.53 →553.21 and m/z 877.14 → 553.23, respectively. For the successful extraction of drug as well as internal standard, liquid-liquid extraction technique was efficiently utilised. The developed technique was established in a linear concentration range of 5.0-5000.0 pg/ml along with correlation coefficient (r2) of 0.9994. Intra and inter-day precisions were found to be 0.7 to 1.90% and 0.7 to 2.0 % for venetoclax and venetoclax-D8, respectively. Accuracy was found to be within 98.6 to 101.99% and 99.17 to 101.14 % for venetoclax and venetoclax-D8, respectively. It was observed that throughout the bench top studies, post-operative stability studies and freeze-thawing cycles, venetoclax retained stability.

A Sensitive LC–MS/MS Method for the Determination of Afatinib in Human Plasma and Its Application to a Bioequivalence Study

2021 ◽  
Author(s):  
Xi Luo ◽  
Xiu Jin Zhang ◽  
Wen Ling Zhu ◽  
Jin Ling Yi ◽  
Wen Gang Xiong ◽  
...  
Keyword(s):  
Human Plasma ◽  
Mobile Phase ◽  
High Performance ◽  
Multiple Reaction Monitoring ◽  
Internal Standard ◽  
Bioequivalence Study ◽  
Liquid Chromatography Tandem Mass ◽  
Multiple Reaction Monitoring Mode ◽  
Ionization Mode

Abstract A high performance liquid chromatography–tandem mass spectrometry assay for the determination of afatinib (AFT) in human plasma was established. A simple sample preparation of protein precipitation was used and separation was achieved on a C18 column by the gradient mixture of mobile Phase A of water (containing 0.1% ammonia) and the mobile Phase B of acetonitrile and water (V:V = 95:5, containing 0.2% ammonia). The multiple reaction monitoring mode was used to monitor the precursor-to-production transitions of m/z 486.2 → m/z 371.4 for AFT and m/z 492.2 → m/z 371.3 for AFT-d6 (internal standard) at positive ionization mode. The calibration curve ranged from 0.100 to 25.0 ng·mL−1 and the correlation coefficient was greater than 0.99. The intra- and inter-batch precision was less than or equal to 10.0%. Accuracy determined at four concentrations was in the range of 92.3–103.3%. In summary, our method was sensitive, simple and reliable for the quantification of AFT and was successfully applied to a bioequivalence study.

scholarly journals Method Development and Validation for Quantification of Sulfamethoxazole in Human plasma by UPLC-MS/MS

2021 ◽  
Vol 12 (1) ◽  
pp. 17-27
Author(s):  
Vijey Aanandhi M ◽  
Yamini R ◽  
Elancheziyan K ◽  
Prakash Chand T ◽  
Aysha Jadeera K A ◽  
...  
Keyword(s):  
Human Plasma ◽  
Method Development ◽  
Internal Standard ◽  
Bioequivalence Study ◽  
Assay Method ◽  
Stability Parameters ◽  
Standard Curve ◽  
Carry Over ◽  
The Stability ◽  
Development And Validation

The main objective of the study aimed at developing and validating the advanced effective Liquid-Liquid Extraction  method for evaluating Sulfamethoxazole in Human plasma, by following the FDA guidelines using UPLC-MS/MS and Sulfamethoxazole D4 as Internal Standard. The analyte was eluted using Acetonitrile: 10mM Ammonium Formate pH 4.5 (60:40 v/v) flows through the column and flow-rate of 0.400mL/min. The injected volume set was 5µl. Chromatogram obtained with isocratic elution with efficient separation. Spiking concentrations were fixed for the Calibration Curve and Quality Control samples that produced the  linearity over the range of 320.635ng/ml to 22009.900ng/ml for the standard curve. The slope 0.0000535324  and corresponding intercept was plotted using the developed method. The method has been validated according to all established parameters of inter and intra precision and accuracy and showing recovery of 71.39% and 71.14% for SM and SMD4 respectively. Reinjection and Reproducibility and Auto Sampler Carry Over Test were met with the specifications. The validated method drew accuracy and meets specifications for the Big Batch, Hemolyzed and Dilution Integrity samples. This assay method was developed that proves all the stability parameters for the matrices as well as solutions used for the study and suitable for the bioequivalence study. The proposed method may also be applicable for the study of combined formulations.

scholarly journals Method Development and Validation for Determination of Febuxostat from Spiked Human Plasma Using RP-HPLC with UV Detection

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Monita Gide ◽  
Pankaj Sharma ◽  
Ravindra Saudagar ◽  
Birendra Shrivastava
Keyword(s):  
Human Plasma ◽  
High Performance ◽  
Method Development ◽  
Internal Standard ◽  
Hplc Method ◽  
Uv Detection ◽  
Least Square ◽  
Spiked Human Plasma ◽  
Rp Hplc ◽  
Development And Validation

A rapid, simple, selective, and specific reverse phase high performance liquid chromatography (RP-HPLC) method with UV detection (315 nm) was developed and validated for estimation of febuxostat from spiked human plasma. The analyte and internal standard (diclofenac) were extracted using LLE with diethyl ether. The chromatographic separation was performed on Shodex C-18-4E (5 μm; 250×4.6 mm) with a mobile phase comprised of methanol : acetate buffer pH 4, 20 mM (90 : 10 v/v), at a flow rate of 1 mL/min. Febuxostat was well resolved from plasma constituents and internal standard. The calibration curve was linear in the range of 250–8000 ng/mL. The heteroscedasticity was minimized by using weighted least square regression with weighing factor of 1/x. The intraday and interday %RSD was less than 15. Results of recovery studies prove the extraction efficiency. Stability data indicated that febuxostat was stable in plasma after three freeze thaw cycles and upon storage at −20°C for 30 days.

scholarly journals Bioanalytical method development and validation for determination of metoprolol tartarate and hydrochlorothiazide using HPTLC in human plasma

2013 ◽  
Vol 49 (4) ◽  
pp. 845-851 ◽  
Author(s):  
Ambadas Ranganath Rote ◽  
Poonam Ramdas Sonavane
Keyword(s):  
Human Plasma ◽  
High Performance ◽  
Method Development ◽  
Internal Standard ◽  
Analytical Technique ◽  
Method Development And Validation ◽  
Rf Values ◽  
The Stability ◽  
Development And Validation

A simple, sensitive, rapid and economic chromatographic method has been developed for determination of metoprolol tartarate and hydrochlorothiazide in human plasma using paracetamol as an internal standard. The analytical technique used for method development was high-performance thin-layer chromatography. HPTLC Camag with precoated silica gel Plate 60F254 (20 cm×10 cm) at 250 µm thicknesses (E. Merck, Darmstadt, Germany) was used as the stationary phase. The mobile phase used consisted of chloroform: methanol: ammonia (9:1:0.5v/v/v). Densitometric analysis was carried out at a wavelength of 239 nm. The rf values for hydrochlorothiazide, paracetamol and metoprolol tartarate were 0.13±0.04, 0.28±0.05, 0.48±0.04, respectively. Plasma samples were extracted by protein precipitation with methanol. Concentration ranges of 200, 400, 600, 800, 1000, 1200 ng/mL and 2000, 4000, 6000, 8000, 10000, 12000 ng/mL of hydrochlorothiazide and metoprolol tartarate, respectively, were used with plasma for the calibration curves. The percent recovery of metoprolol tartarate and hydrochlorothiazide was found to be 77.30 and 77.02 %, respectively. The stability of metoprolol tartarate and hydrochlorothiazide in plasma were confirmed during three freeze-thaw cycles (-20 ºC) on a bench for 24 hours and post-preparatively for 48 hours. The proposed method was validated statistically and proved suitable for determination of metoprolol tartarate and hydrochlorothiazide in human plasma.

scholarly journals BIOANALYTICAL METHOD DEVELOPMENT AND VALIDATION FOR THE DETERMINATION OF SOFOSBUVIR FROM HUMAN PLASMA

2017 ◽  
Vol 9 (3) ◽  
pp. 35 ◽  
Author(s):  
S. Madhavi ◽  
A. Prameela Rani
Keyword(s):  
Human Plasma ◽  
Method Development ◽  
Quantitative Estimation ◽  
Internal Standard ◽  
Hplc Method ◽  
Array Detector ◽  
Therapeutic Drug ◽  
Specificity And Sensitivity ◽  
Photodiode Array Detector ◽  
Development And Validation

Objective: This study points to build up and validate a simple methodology to quantify the most used drug sofosbuvir for the treatment of hepatitis C virus (HCV) infection, in human plasma by using atazanavir as an Internal Standard (IS) for preclinical studies and validate as per USFDA guidelines.Methods: Sofosbuvir was isolated from plasma samples by liquid-liquid extraction method using acetonitrile; good chromatographic separation was achieved on Kromasil Column (250 mm ×4.6 mm, 5 µm). The mobile phase consisted of 0.1 % orthophosphoric acid (OPA) buffer pH 2 and acetonitrile in the ratio of (68:32, v/v), respectively. The analysis time was 7 min at a flow rate 1 ml/min. The photodiode array detector (PDA) detection was carried out at 228 nm. The suggested method was validated by performing linearity, system suitability, specificity and sensitivity, accuracy and precision, recovery, ruggedness, stability studies. The method was validated as per USFDA guidelines.Results: The developed method resulted in retention times of sofosbuvir and IS were found out to be 4.7 and 4.2 min respectively. The calibration curves are linear (r2 = 0.999) over the concentration range of 0.050-2.0 µg/ml of plasma analytes concentration. LOQ value was found to be 0.050 µg/ml with precision and accuracy. Within-batch % mean accuracy of the method ranged between 96.00% and 109.09%, and within-batch and total precision, expressed as the coefficient of variation, was 1.40–10.33%. Overall percentage mean recovery of sofosbuvir from spiked plasma was 84.14%. All the validated parameters were found to be within the limit.Conclusion: A simple, accurate, precise, linear, rugged and rapid RP-HPLC method was developed for quantitative estimation of sofosbuvir in human plasma and should be suitable for conducting pharmacokinetics studies and therapeutic drug monitoring.

scholarly journals Bioanalytical method development and validation of garenoxacin mesylate in human plasma by RP-HPLC

2019 ◽  
Vol 10 (2) ◽  
pp. 1314-1320
Author(s):  
Ajitha A ◽  
Sujatha K ◽  
Abbulu K
Keyword(s):  
Human Plasma ◽  
High Performance ◽  
Method Development ◽  
Internal Standard ◽  
Hplc Method ◽  
Limit Of Quantification ◽  
Column Temperature ◽  
Rp Hplc ◽  
Ich Guidelines ◽  
Development And Validation

A simple, precise, accurate Reverse Phase-High Performance Liquid Chromatography (RP-HPLC) method was developed for the estimation of Garenoxacin mesylate in human plasma using Ciprofloxacin Hydrochloride as an internal standard. Chromatographic conditions used are stationary phase Zorbax Eclipse XDB C18 (250x4.6 mm, 5m), Mobile phase 0.1% orthophosphoric acid and Acetonitrile in the ratio of 50:50 (% v/v) and flow rate was maintained at 1.0 ml/min, detection wavelength was 240 nm, injection volume of 50 µL and the column temperature was set to 30°C. The retention time of Garenoxacin mesylate was found to be 4.0 min. % Coefficient of Variation of the Garenoxacin mesylate was found to be 4.30. % Recovery was obtained as 98.97%. The linearity of the proposed method was established in the concentration range of 0.04 to 4 µg/ml (Correlation Coefficient = 0.999). The lower limit of quantification was 0.04 μg/ml (S/N Ratio 21) which reach the level drug possibly found in human plasma. Further, the reported method was validated as per the ICH guidelines and found to be well within the acceptable range.

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