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Mathur, S. C.
- Development Of a Simple HPLC Method for the Quantitation of Artemisinin in Artemisia Annua Herb
Abstract Views :190 |
PDF Views:100
Authors
Affiliations
1 Research and Development Division, Central Indian Pharmacopoeia Laboratory, Indian Pharmacopoeia Commission, Govt. of India, Ministry of Health & FamilyWelfare, Sector-23, Rajnagar, Ghaziabad-201002, IN
2 Department of Chemistry, M. M. H. College, Ghaziabad (U.P.), IN
1 Research and Development Division, Central Indian Pharmacopoeia Laboratory, Indian Pharmacopoeia Commission, Govt. of India, Ministry of Health & FamilyWelfare, Sector-23, Rajnagar, Ghaziabad-201002, IN
2 Department of Chemistry, M. M. H. College, Ghaziabad (U.P.), IN
Source
Journal of Pharmaceutical Research, Vol 8, No 1 (2009), Pagination: 16-18Abstract
A high-performance liquid chromatographic (HPLC) method has been developed for the determination of Artemisinin in Artemisia annua Herb. The HPLC separation was carried out in isocratic mode using C18, sunfire column (4.6 × 250 mm, 5 μm particle size) with a mobile phase composed of acetonitrile : water (85:15 v/v) at a flow rate of 1.0 ml/min. The detection was monitored at 216 nm. The method validation parameters showed good results for linearity, precision, accuracy, specificity, and in recovery studies. The calibration curve for Artemisinin was found linear from the range of 500 to 1200 μg/ml. The interday and intraday studies (relative standard deviation) was obtained within the limits. The proposed HPLC method is precise, accurate and rapid for determination of Artemisinin in Artemisia annua Herb.Keywords
Artemisinin, HPLC, Artemisia Annua Herb.- A Simple and Sensitive HPTLC Method for Simultaneous Determination of Abacavir Sulphate and Lamivudine in Tablet Dosage Form
Abstract Views :211 |
PDF Views:88
Authors
Affiliations
1 Research and Development Division, Indian Pharmacopoeia Commission, Govt. of India, Ministry of Health & Family Welfare, Sector-23, Rajnagar, Ghaziabad-201002, IN
2 Department of Chemistry, M. M. H. College, Ghaziabad (U.P.), IN
3 Department of Pharmaceutics, Faculty of Pharmacy, Jamia Hamdard, New Delhi- 110 062, IN
1 Research and Development Division, Indian Pharmacopoeia Commission, Govt. of India, Ministry of Health & Family Welfare, Sector-23, Rajnagar, Ghaziabad-201002, IN
2 Department of Chemistry, M. M. H. College, Ghaziabad (U.P.), IN
3 Department of Pharmaceutics, Faculty of Pharmacy, Jamia Hamdard, New Delhi- 110 062, IN
Source
Journal of Pharmaceutical Research, Vol 8, No 4 (2009), Pagination: 187-191Abstract
A simple, sensitive, precise and rapid high performance thin layer chromatographic (HPTLC) method has been developed for the quantitative estimation of abacavir sulphate and lamivudine in tablet dosage form. Abacavir sulphate and lamivudine were chromatographed on silica Gel 60 GF-254 TLC plate. The solvent system selected was methanol:acetone:n-butyl acetate in the ratio of 1:1:2 (v/v/v) and scanning was carried out in the absorbance mode at 284 nm. The spots were found compact for abacavir sulphate with Rf value of 0.58 and for lamivudine with Rf value of 0.35. Linearity of abacavir sulphate and lamivudine were in the range of 240-1200 ng/spot and 120-600 ng/spot, respectively with acceptable value of correlation coefficient. The method was validated for accuracy, precision, robustness and recovery studies. The limit of detection and quantification for abacavir sulphate were obtained 0.691 and 2.093 ng/spot, respectively, while for lamivudine 1.114 and 3.376 ng/spot, respectively. The suitability of this HPTLC method for quantitative determination of abacavir sulphate and lamivudine was proved by validation in accordance with the ICH guidelines. The developed method can be successfully applied in the routine analysis of commercial pharmaceutical tablets.Keywords
Abacavir Sulphate, Lamivudine, HPTLC, Method Development and Validation.- Development and Validation of RP-HPLC Method for Estimation of Efavirenz in Bulk and in Tablet Dosage forms
Abstract Views :187 |
PDF Views:84
Authors
Affiliations
1 Research and Development Division, Indian Pharmacopoeia Commission, Govt. of India, Ministry of Health & Family Welfare, Sector-23, Rajnagar, Ghaziabad-201002, (U.P.), IN
2 Department of Chemistry, M. M. H. College Ghaziabad-201001, (U.P.), IN
1 Research and Development Division, Indian Pharmacopoeia Commission, Govt. of India, Ministry of Health & Family Welfare, Sector-23, Rajnagar, Ghaziabad-201002, (U.P.), IN
2 Department of Chemistry, M. M. H. College Ghaziabad-201001, (U.P.), IN
Source
Journal of Pharmaceutical Research, Vol 9, No 2 (2010), Pagination: 87-89Abstract
A simple, precise, rapid, accurate and economic high performance liquid chromatographic (HPLC) method has been developed for the estimation of Efavirenz in bulk and its tablet dosage forms. A sunfire C18 column was used for the determination of efavirenz using methanol and acetonitrile as mobile phase in the ratio of 7:3 v/v, at ambient temperature and the detector was set at 249 nm. The Linearity of efavirenz was found in the range of 10-400 μg/ml with acceptable value of correlation coefficient 0.9997. The method was validated for accuracy, precision, robustness and recovery studies. The recovery of the drug was found to be 99.89%, relative standard deviation was found to be less than 2% for precession studies and method was found to be robust with the varying condition of flow rate (±10%), wavelength of detection (±5nm), column oven temperature (±5°C). The suitability of the developed HPLC method for quantitative determination of efavirenz was proved by validation in accordance with the ICH guidelines. The developed method can be successfully applied in the routine analysis of commercial pharmaceutical tablets.Keywords
Efavirenz, HPLC, Method Development and Validation.- Development and Validation of HPTLC Method for the Estimation of Ondansetron Hydrochloride in Bulk Drug and Tablet Dosage Forms
Abstract Views :216 |
PDF Views:101
Authors
A. Chauhan
1,
P. K. Arora
2,
A. Yadav
2,
R. M. Singh
2,
D. K. Sharma
2,
S. C. Mathur
2,
G. N. Singh
2
Affiliations
1 Indian Pharmacopoeial Laboratory, Indian Pharmacopoeia Commission, Ministry of Health & Family Welfare, Govt, of India, Sector -23, Rajnagar, Ghaziabad - 201002, IN
2 Indian Pharmacopoeial Laboratory, Indian Pharmacopoeia Commission, Ministry of Health & Family Welfare, Govt, of India, Sector -23, Rajnagar, Ghaziabad- 201002, IN
1 Indian Pharmacopoeial Laboratory, Indian Pharmacopoeia Commission, Ministry of Health & Family Welfare, Govt, of India, Sector -23, Rajnagar, Ghaziabad - 201002, IN
2 Indian Pharmacopoeial Laboratory, Indian Pharmacopoeia Commission, Ministry of Health & Family Welfare, Govt, of India, Sector -23, Rajnagar, Ghaziabad- 201002, IN
Source
Journal of Pharmaceutical Research, Vol 12, No 2 (2013), Pagination: 61-65Abstract
A simple, selective, precise and sensitive high performance thin-layer chromatographic (HPTLC) method has been developed and validated for the analysis of ondansetron hydrochloride both in bulk drug and in tablet dosage forms. The separation was performed on pre-coated silica gel 60 GF254 plates using methanol:triethylamine:glacial acetic acid (9.5:0.5:0.1, v/v/v) as mobile phase. Densitometric analysis was performed in reflectance-absorbance mode at 309 nm. The linear regression analysis data for the calibration plot showed good linear relationship with R2 = 0.998 ± 0.00047 in the range of 300-1100 ng spot-1. The minimum amount of ondansetron hydrochloride that could be detected and quantified was 54.60 and 165.46 ng spot-1 respectively. The mean retardation factor (Rf) for ondansetron hydrochloride was found to be 0.77 ± 0.01. The developed method was validated according to International Conference on Harmonization (ICH) guidelines for specificity, linearity, range, accuracy, precision, detection limit, quantitation limit and robustness etc.Keywords
Ondansetron Hydrochloride, HPTLC, Method Validation.- First Microvertebrate Assemblage from the Fatehgarh Formation (Cretaceous), Barmer District, Western Rajasthan
Abstract Views :222 |
PDF Views:2
Authors
Affiliations
1 Department of Geology, J. N. V. University, Jodhpur - 342 001, IN
1 Department of Geology, J. N. V. University, Jodhpur - 342 001, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 67, No 6 (2006), Pagination: 759-769Abstract
This paper presents a microvertebrate assemblage for the first time from the Fatehgarh Formation exposed in district Barmer, western Rajasthan. The vertebrate fauna represented by well preserved isolated bones, teeth and other skeletal materials, is associated stratigraphically with multiple layers of bedded phosphate and a diverse assemblage of marine benthic gastropods. The vertebrate assemblage comprises cf. igdabatis sp., Semionotiformes indet., Lepisosteus indicus.,?Enchodontidae indet., Albuloidei indet. and ?Stephanodussp . Besides, fragmentary pectoral and dorsal spines of Siluriformes indet. are also present.A Late Cretaceous age is suggested from close faunistic aSfinities of Fatehgarh vertebrates with those from Lameta and inictrappean sequences. A nearshore marine palacoenvironment is reconstructed from close stratigraphic and taphonomic association of microvertebrate assemblage with phosphorite and sand complex.
Keywords
Microvertebrates, Late Cretaceous, Fatehgarh, Barmer District, Rajasthan.- Sedimentation in Barmer Basin, Rajasthan
Abstract Views :199 |
PDF Views:254
Authors
S. C. Mathur
1,
Sudhir Kumar
1
Affiliations
1 Department of Geology, JNV University Jodhpur - 342 006, Rajasthan, IN
1 Department of Geology, JNV University Jodhpur - 342 006, Rajasthan, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 61, No 3 (2003), Pagination: 368-369Abstract
No Abstract.- Carbon Isotope Oscillations through the Marwar Supergroup, Western Rajasthan
Abstract Views :194 |
PDF Views:155
Authors
Affiliations
1 Department of Geology, University of Rajasthan, Jaipur - 302 004, IN
2 NEG-LABISE, Department of Geology, C.P. 7852, Federal, University of Pernambuco, Recife, 50732-970, BR
3 Geology, J.N.V. University, Jodhpur, IN
1 Department of Geology, University of Rajasthan, Jaipur - 302 004, IN
2 NEG-LABISE, Department of Geology, C.P. 7852, Federal, University of Pernambuco, Recife, 50732-970, BR
3 Geology, J.N.V. University, Jodhpur, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 57, No 1 (2001), Pagination: 83-83Abstract
No Abstract.- The Wood-Boring Trace Fossil Asthenopodichnium from Palaeocene Sediments of the Barmer Hill Formation, Western Rajasthan, India
Abstract Views :269 |
PDF Views:111
Authors
S. C. Mathur
1,
N. S. Shekhawat
1,
S. L. Nama
2,
C. P. Khichi
1,
A. Soni
1,
Saurabh Mathur
1,
V. S. Parihar
1
Affiliations
1 Department of Geology, Jai Narain Vyas University, Jodhpur 342 005, IN
2 Department of Zoology, Jai Narain Vyas University, Jodhpur 342 005, IN
1 Department of Geology, Jai Narain Vyas University, Jodhpur 342 005, IN
2 Department of Zoology, Jai Narain Vyas University, Jodhpur 342 005, IN
Source
Current Science, Vol 114, No 07 (2018), Pagination: 1544-1548Abstract
The present study documents the wood-boring trace fossil Asthenopodichnium from the Palaeocene sediments of the Barmer Hill Formation (BHF) in the Barmer Basin, Western Rajasthan, India. The Asthenopodichnium trace fossils are loosely to tightly packed, pouch-like burrows or almond-shaped structures identified as Asthenopodichnium lignorum, whereas lozenge and J-shaped structures are designated as Asthenopodichnium lithuanicum. The A. lignorum trace markers are considered to be the feeding and dwelling burrows produced by wood-rotting fungi, whereas A. lithuanicum are interpreted as feeding and dwelling burrows produced by Mayfly nymphs and larvae. The sedimentological and palaeontological studies of trace fossil-bearing horizons of BHF suggest freshwater fluvial sedimentary environment with humid to sub-humid climate.Keywords
Asthenopodichnium, Freshwater Environment, Trace-Fossils, Wood-Rotting Fungi.References
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