scholarly journals Establishment of a Rapid and Highly Sensitive Reverse-phase High-performance Liquid Chromatography Based Analytical Assay Method for Duvelisib

2022 ◽  
Vol 56 (1) ◽  
pp. 287-295
Author(s):  
Dipali Sonawane ◽  
Amit Kumar Sahu ◽  
Tarang Jadav ◽  
Pinaki Sengupta
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
High Performance ◽  
Assay Method ◽  
Reverse Phase ◽  
Highly Sensitive ◽  
Analytical Assay

scholarly journals DEVELOPMENT AND VALIDATION OF REVERSE PHASE-HIGH PERFORMANCE LIQUID CHROMATOGRAPHY ASSAY METHOD FOR ESTIMATION OF FENOFIBRATE IN TABLET DOSAGE FORM PREPARED USING CRYSTALLO-CO-AGGLOMERATES OF THE DRUG

2021 ◽  
Vol 19 (1) ◽  
pp. 19-28
Author(s):  
SANTOSH GANDHI ◽  
MANGESH BHALEKAR ◽  
RAVINA MUTHA
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
High Performance ◽  
Linear Regression Analysis ◽  
Hplc Method ◽  
Assay Method ◽  
Reverse Phase ◽  
Rp Hplc ◽  
Specificity And Sensitivity ◽  
Tablet Dosage

The aim of the present study was to develop a simple isocratic reverse phase-high performance liquid chromatography (RP-HPLC) method and validate for the determination of fenofibrate in tablet dosage forms. RP-HPLC method was developed using Hi Q Sil C18 (250 cm × 4.6 mm, 5 μm) and mobile phase comprising 1 mM ammonium acetate buffer: Acetonitrile (10:90 v/v) at a flow rate of 1.0 mL/min. The detection was carried out at 290 nm. The retention time was found to be 6.15 ± 0.03 min. Validation of the method was performed for precision, accuracy, linearity, robustness, specificity and sensitivity to conform to the International Conference on Harmonization (ICH) guidelines. The data of linear regression analysis indicated a good linear response in the concentration range of 5 μg/mL–30 μg/mL with correlation co-efficient (R2) of 0.997. The developed method was found to be simple, sensitive, accurate and repeatable for assay of tablets of fenofibrate prepared using crystallo-co-agglomerates of the drug.

scholarly journals METHOD DEVELOPMENT AND VALIDATION FOR SIMULTANEOUS ESTIMATION OF LAMIVUDINE AND ZIDOVUDINE IN TABLET BY REVERSE-PHASE HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY

2020 ◽  
pp. 73-77
Author(s):  
BHOOMI D PATEL ◽  
MEHTA BHAVYA ◽  
ANKIT B CHAUDHARY
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
High Performance ◽  
Dosage Form ◽  
Method Development ◽  
Hplc Method ◽  
Assay Method ◽  
Simultaneous Estimation ◽  
Reverse Phase ◽  
Rp Hplc

Objective: The objective of the study was to develop and validate reverse-phase high-performance liquid chromatography (RP-HPLC) method and apply method to tablet dosage form. Methods: A simple, rapid, economical, precise, and accurate RP-HPLC method for simultaneous estimation of lamivudine and zidovudine in their combined dosage form has been developed. Results: A RP-HPLC method was developed for the simultaneous estimation of lamivudine and zidovudine. In their combined dosage form has been developed. The separation was achieved by LC-C18 column (150 mm ×4.6 mm, 5 μm) and water: methanol (65:35v/v) as mobile phase, at a flow rate of 0.8 ml/min. Detection was carried out at 272 nm. Retention time of lamivudine and zidovudine was found to be 3.007 min and 4.647, respectively. The method has been validated for linearity, accuracy, and precision. The assay method was found to be linear from 50% to 150% for lamivudine and zidovudine. Conclusion: Developed method was found to be accurate, precise, and rapid for simultaneous estimation of lamivudine and zidovudine in their combined dosage form.

scholarly journals A SENSITIVE ASSAY FOR NON-SPECIFIC N-METHYLTRANSFERASE ACTIVITY IN RAT TISSUES BY HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY ELECTROCHEMICAL DETECTION

2017 ◽  
Vol 19 (1) ◽  
pp. 63-68
Author(s):  
Dawan Shimbhu ◽  
Kohichi Kojima ◽  
Toshiharu Nagatsu
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Electrochemical Detection ◽  
High Performance ◽  
Brain Regions ◽  
Assay Method ◽  
Sensitive Assay ◽  
Methyltransferase Activity ◽  
Peripheral Tissues ◽  
Highly Sensitive

 Phenylethanolamine N-methyltransferase (PNMT) and non-specific N -methyltransferase  (EC 2.1.1.28) catalyze the N-methylation of aromatic amines. PNMT is specific for phenylethanolamines such as noradrenaline (NA). and catalyzes the step in catecholamine biosynthesis, forming adrenaline (AD) from NA. PNMT activity is high in adrenal gland, whereas non-specific N-methyltransferase is distributed in various tissues such as the lungs. Borchardt et al. first reported a method to detect PNMT activity by  high-performance liquid chromatography electrochemical detection (HPLC-EICD), which could demonstrate the activity only in the adrenal medulla and hypothalamus. Recently, Troeewicz et al. reported a highly sensitive assay method for PNMT using HPLC-EICD by which the activity in all regions of rat brains could be measured. The activity of non-specific N-methyltransferase in brain regions and peripheral tissues of the rat could be detected by a radioassay. However, there has been no repot on an assay method for non-specific N-methyltransferase using HPLC-EICD. In this paper, we describe a highly sensitive assay procedure for the activity of non-specific N-methyltransferase by high-performance reversed-phase ion pair chromatography with electrochemical detection. By this method, the non-specific N-methyltransferase activity could be determined in various rat brain regions and peripheral tissues.

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