scholarly journals Simultaneous HPTLC Estimation of Simvastatin and Ezetimibe in Tablet Dosage Form

2010 ◽  
Vol 7 (4) ◽  
pp. 1206-1211 ◽  
Author(s):  
Bhupendra Shrestha ◽  
B. Stephenrathinaraj ◽  
Sita Sharan Patel ◽  
N. K. Verma ◽  
R. Mazumder
Keyword(s):  
Thin Layer ◽  
Thin Layer Chromatography ◽  
High Performance ◽  
Dosage Form ◽  
Limit Of Detection ◽  
Percent Recovery ◽  
Limit Of Quantitation ◽  
The Mean ◽  
Tablet Dosage ◽  
Layer Chromatography

A method enabling the precise and quick simultaneous analysis of simvastatin and ezetimibe in tablet formulation by high performance thin layer chromatography has been presented. Samples of simvastatin and ezetimibe in organic solvents were separated on a plate coated with silica gel 60 F-254 and the chromatograms were developed using a mixture of chloroform and methanol (9.5: 0.5 %v/v). The method has a linearity range of 40-280 ng.mL-1for both the drugs when scanned at 254 nm. The limit of detection and limit of quantitation was found to be 30 and 100 ng.band-1respectively, for both the drugs. The mean percent recovery was found to be 100.65 and 101.55 for simvastatin and ezetimibe. The intra-day and inter-day precision studies were carried out with mean RSD of 0.88 and 1.27 for ezetimibe and 1.35 and 1.50 for simvastatin.

scholarly journals DEVELOPMENT AND VALIDATION OF HIGH-PERFORMANCE THIN-LAYER CHROMATOGRAPHY METHOD FOR SIMULTANEOUS ESTIMATION OF NEBIVOLOL HYDROCHLORIDE AND CILNIDIPINE

2019 ◽  
pp. 347-350
Author(s):  
MINAL R. GHANTE ◽  
ATASHA AKHADE ◽  
PREETI GOTA ◽  
ATUL NIKAM ◽  
SUPRIYA JAGTAP ◽  
...  
Keyword(s):  
Thin Layer ◽  
Thin Layer Chromatography ◽  
High Performance ◽  
Dosage Form ◽  
Simultaneous Estimation ◽  
Pharmaceutical Tablet ◽  
Nebivolol Hydrochloride ◽  
Development And Validation ◽  
Tablet Dosage ◽  
Layer Chromatography

Objective: The proposed method describes method development and validation of nebivolol hydrochloride and cilnidipine in combined pharmaceutical tablet dosage form by high-performance thin-layer chromatography (HPTLC) having adequate specificity, sensitivity, and reproducibility. Methods: Nebivolol hydrochloride and cilnidipine drug combination is used for the treatment of hypertension. Precoated aluminum plates with silica gel 60 F254 (E-Merck, Germany) were used for the chromatographic separation which was carried using chloroform:glacial acetic acid:methanol, in 8.5:1:0.5 (v/v/v) as a mobile phase. HPTLC separation of two drugs was carried by densitometric measurement at 270 nm. Reults: The drugs were satisfactorily resolved with retardation factor values of 0.0.29±0.008 and 0.69±0.007 for nebivolol hydrochloride and cilnidipine, respectively. The method was found to be linear in the range of 100–1000 ng/spot and 50–500 ng/spot for nebivolol hydrochloride and cilnidipine, respectively. The correlation coefficient was found to be 0.989 and 0.996 for nebivolol hydrochloride and cilnidipine, respectively. Limit of detection and limit of quantitation values were 16.395 ng/band and 49.681 ng/band and 31.788ng/band and 96.328 ng/band, respectively. The mean recovery was found to be 100.570–101.936 and 100.269–101.333 for nebivolol hydrochloride and cilnidipine, respectively. The intra- and inter-day precision was found to be within the limit. Conclusion: A simple, accurate, precise, and sensitive HPTLC method has been developed and validated in combined pharmaceutical tablet dosage form for simultaneous estimation of nebivolol hydrochloride and cilnidipine.

scholarly journals DETERMINATION OF 10-GINGEROL IN INDIAN GINGER BY VALIDATED HPTLC METHOD OF SAMPLES COLLECTED ACROSS SUBCONTINENT OF INDIA

2016 ◽  
Vol 8 (12) ◽  
pp. 190
Author(s):  
Kamran Ashraf ◽  
Syed Adnan Ali Shah ◽  
Mohd Mujeeb
Keyword(s):  
Thin Layer ◽  
Thin Layer Chromatography ◽  
High Performance ◽  
Limit Of Detection ◽  
Limit Of Quantification ◽  
Chromatography Method ◽  
Aluminum Plates ◽  
Layer Chromatography ◽  
Hptlc Method

<p><strong>Objective: </strong>A simple, sensitive, precise, and accurate stability indicating HPTLC (high-performance thin-layer chromatography) method for analysis of 10-gingerol in ginger has been developed and validated as perICH guidelines.</p><p><strong>Methods: </strong>The separation was achieved on TLC (thin layer chromatography) aluminum plates pre-coated with silica gel 60F<sub>254</sub> using n-hexane: ethyl acetate 55:45 (%, v/v) as a mobile phase. Densitometric analysis was performed at 569 nm.</p><p><strong>Results: </strong>This system was found to have a compact spot of 10-gingerol at <em>R</em><sub>F</sub> value of 0.57±0.03. For the proposed procedure, linearity (<em>r</em><sup>2</sup> = 0.998±0.02), limit of detection (18ng/spot), limit of quantification (42 ng/spot), recovery (ranging from 98.35%–100.68%), were found to be satisfactory.</p><p><strong>Conclusion: </strong>Statistical analysis reveals that the content of 10-gingerol in different geographical region varied significantly. The highest and lowest concentration of 10-gingerol in ginger was found to be present in a sample of Patna, Lucknow and Surat respectively which inferred that the variety of ginger found in Patna, Lucknow are much superior to other regions of India.</p>

DEVELOPMENT OF HPTLC METHOD FOR THE ESTIMATION OF ONDANSETRON AND RANITIDINE IN COMBINED DOSAGE FORM

INDIAN DRUGS ◽  
2015 ◽  
Vol 52 (12) ◽  
pp. 42-48
Author(s):  
P. J. Patel ◽  
◽  
D. A Shah ◽  
F. A. Mehta ◽  
U. K. Chhalotiya
Keyword(s):  
Thin Layer ◽  
Stationary Phase ◽  
Thin Layer Chromatography ◽  
Silica Gel ◽  
High Performance ◽  
Dosage Form ◽  
Solvent System ◽  
Rf Values ◽  
Layer Chromatography ◽  
Hptlc Method

A simple, sensitive and precise high performance thin layer chromatographic (HPTLC)method has been developed for the estimation of ondansetron (OND) and ranitidine (RAN) in combination. The method was employed on thin layer chromatography (TLC) and aluminium plates were precoated with silica gel 60 F254 as the stationary phase, while the solvent system was methanol. The Rf values were observed to be 0.5 ± 0.02, and 0.3 ± 0.02 for OND and RAN, respectively. The separated spots were densitometrically analyzed in absorbance mode at 299 nm. This method was linear in the range of 25-300 ng/band for OND and 50-600 ng/band for RAN. The limits of detection for OND and RAN were found to be 3.47 and 1.83 ng/band, respectively. The limits of quantification for OND and RAN were found to be 10.53 and 5.55 ng/band, respectively. The proposed method was validated with respect to linearity, accuracy, precision and robustness. The method was successfully applied to the estimation of OND and RAN in combined dosage form.

scholarly journals Quantitative Determination of Triterpenes from Amphiptherygium adstringens by Liquid Chromatography and Thin-Layer Chromatography and Morphological Analysis of Cuachalalate Preparations

2006 ◽  
Vol 89 (1) ◽  
pp. 1-7 ◽  
Author(s):  
Andrés Navarrete ◽  
Bharathi Avula ◽  
Vaishali C Joshi ◽  
Xiuhong Ji ◽  
Paul Hersh ◽  
...  
Keyword(s):  
Thin Layer ◽  
Thin Layer Chromatography ◽  
High Performance ◽  
Limit Of Detection ◽  
Gastric Ulcers ◽  
Array Detector ◽  
Plant Materials ◽  
Relative Standard ◽  
Layer Chromatography

Abstract Amphiptherygium adstringens (Anacardiaceae/Julianaceae), local name cuachalalate, is used in folk medicine for the treatment of cholelithiasis, fevers, fresh wounds, hypercholesterolemia, gastritis, gastric ulcers, and cancer of the gastrointestinal tract. The development of column high-performance liquid chromatographyphotodiode array detector (LC-PDA) and high-performance thin-layer chromatography (HPTLC)densitometry methods for the determination of masticadienonic acid and 3-hydroxymasticadienonic acid in cuachalalate preparations is described in this paper. Good separation of the compounds could be achieved by both methods. Either might be preparable depending on the requirements. The LC separation was performed on a Phenomenex Synergi MAX-RP 80A reversed-phase column operated at 40C with detection at 215 nm. The plant materials were extracted with methanol by sonication. The triterpenes present in the plant material and commercial extracts were separated with an acetonitrilewater reagent alcohol isocratic system. The limit of detection was 0.10.2 g/mL. The relative standard deviation values for the determination of triterpenes in plant extracts were less than 1.00%. This is the first report of an analytical method developed for the quantitative analysis of triterpenes from Amphiptherygium adstringens by LC-PDA and HPTLC. The stem bark showed higher amounts of triterpenes, and low amounts in root and stem root. The microscopic description of the crude drug of cuachalalate was also provided.

Sign in / Sign up

Export Citation Format

Share Document