scholarly journals Optimization and validation of a fast RP–HPLC method for the determination of dobutamine in rat plasma: Pharmacokinetic studies in healthy rat subjects

2013 ◽  
Vol 3 (6) ◽  
pp. 434-439 ◽  
Author(s):  
Ramesh Thippani ◽  
Nageswara Rao Pothuraju ◽  
Nageswara Rao Ramisetti ◽  
Saida Shaik
Keyword(s):  
Rat Plasma ◽  
Hplc Method ◽  
Pharmacokinetic Studies ◽  
Rp Hplc ◽  
Plasma Pharmacokinetic

Ecofriendly chromatographic methods for determination of co-prescribed drugs, olanzapine and metformin, in rat plasma

Bioanalysis ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 597-613
Author(s):  
Aml A Emam ◽  
Neven M Habib ◽  
Hamada M Mahmoud ◽  
Nada S Abdelwhab ◽  
Maha M Abdelrahman
Keyword(s):  
Pharmaceutical Preparation ◽  
Rat Plasma ◽  
Reversed Phase ◽  
Hplc Method ◽  
Hypoglycemic Agent ◽  
Chromatographic Methods ◽  
Rp Hplc ◽  
Development And Validation ◽  
Developing System

Background: Olanzapine (OLZ) is one of most recommended drugs for the treatment of schizophrenia while metformin (MET) is the most commonly used hypoglycemic agent. Aim: Development and validation of two green, sensitive and accurate chromatographic methods for the simultaneous determination of OLZ along with the co-prescribed, MET. Materials & methods: TLC-densitometric method with a developing system consisting of methylene chloride:methanol:ethyl acetate:triethylamine (4:4:5:0.1, by volume) and a reversed-phase (RP)-HPLC method where the chromatographic separation was performed using ethanol:water mixture (50: 50, v/v) as a mobile phase. Results: TLC-densitometric method had linearity over concentration ranges of 160–4000 ng/band for OLZ and 150–4500 ng/band for MET, while RP-HPLC method was linear and validated over concentration range of 300–20000 ng/ml for OLZ and MET. Conclusion: Pharmacokinetic study was successfully performed and suggested the possibility of co-administration of MET with OLZ and their further formulation in one pharmaceutical preparation to enhance patient’s compliance.

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.

A simplified and sensitive validated RP-HPLC method for determination of temozolomide in rat plasma and its application to a pharmacokinetic study

2018 ◽  
Vol 41 (10) ◽  
pp. 692-697 ◽  
Author(s):  
Archana Khosa ◽  
Kowthavarapu V. Krishna ◽  
Ranendra N. Saha ◽  
Sunil K. Dubey ◽  
Satish Reddi
Keyword(s):  
Pharmacokinetic Study ◽  
Rat Plasma ◽  
Hplc Method ◽  
Rp Hplc

scholarly journals Development and validation of RP-HPLC method for sildenafil citrate in rat plasma-application to pharmacokinetic studies

2013 ◽  
Vol 21 (3) ◽  
pp. 317-321 ◽  
Author(s):  
A.S. Tripathi ◽  
I. Sheikh ◽  
A.P. Dewani ◽  
P.G. Shelke ◽  
R.L. Bakal ◽  
...  
Keyword(s):  
Rat Plasma ◽  
Hplc Method ◽  
Sildenafil Citrate ◽  
Pharmacokinetic Studies ◽  
Rp Hplc ◽  
Development And Validation
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