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5
determination of polyphenols in flowers of rose species”,
J. of Separation Science
, 31, issue-2,
262-267,
2008
.
19. V. Sharma,
A. P. Gupta
, P. Bhandari, R. C. Gupta and B. Singh, “A validated HPTLC method for the
quantification of withaferin-A and withanolide-A in different plant parts of two morphotypes of
withania somnifera
”,
Chromatograhia
, 66, 801-804,
2007
.
20. V. Jaitak,
A. P. Gupta,
V. K. Kaul and P. S. Ahuja, “Validated high performance thin layer
chromatography method for steviol glycosides in
S. rebaoudiona
”,
J. of Pharmaceutical &
Biomedical Research
, 47, issue-4-5, 790-794,
2008
.
21. N. Kumar, P. Bhadari, B. Singh,
A. P. Gupta
and V. K. Kaul, “Reversed phase-HPLC for rapid
determination of polyphenols in flowers of rose species”,
J. of Separation Science
, 31, 262-267,
2008
.
22. Pati P. K., Sharma M., Sharma A., Salar R. K.,
A. P. Gupta
and B. Singh “Studies on leaf spot disease
of
Withania somnifera
and its impact on secondary metabolites.”
Indian J of Microbiology
, 48,
432-437,
2008
.
23. P. Bhandari, N. Kumar, B. Singh,
A. P. Gupta
, V. K. Kaul and P. S. Ahuja “Stability-indicating LC-PDA
method for determination of picrosides in Hepato-protective Indian herbal preparations of
Picrorhiza kurroa
”,
Chromatographia ,
69, 221-227,
2009
.
24.
N. Sharma, U. Sharma,
A. P. Gupta
, Devla, A. K. Sinha, B. Lal and P. S. Ahuja, “Simultaneous
densitometric determination of shikonin, acetylshikonin and β-acetoxyisovalerylshikonin in
ultrasonic-assisted extracts of four
Arnebia
species using reversed-phase thin layer
chromatography”,
J. of Separation Science
, 32, 3239-3245,
2009
.
25. Upendra K Sharma, Nandini Sharma, Arun K Sinha, Neeraj Kumar,
A. P. Gupta
, “Ultrafast UPLC-
ESI-MS and HPLC with Monolithic Column for determination of Principal flavor Compounds in
vanilla pods”
Journal of Separation Sciences
, 2009, 32, 3425-3431.
26.
N. Sharma, U. K. Sharma,
A. P. Gupta
, and A. K. Sinha, “Simultaneous determination of epicatechin,
syringic acid, quercetin-3-O-galactoside and quercitrin in the leaves of Rhodendron species by
using a validated HPTLC method,
J. of Food Composition and Analysis
, 23, 214-219, 2010.
27. I. Khan, P. Pandotra,
A. P. Gupta,
R. Sharma, B. D Gupta, J. K. Dhar, G. Ram, Y. S. Bedi, S. Gupta, “RP-
Thin layer chromatographic method for the quantification of three gingerol homolog’s of
ultrasonic-assisted fresh rhizome extracts of
Zingiber officinale
Collected from North Western
Himalayas”,
J. Separation Science
, 33, 558-563,
2010
.
28. S. Gupta, P. Pandotra,
A.P. Gupta
, J. K. Dhar, G. Sharma, G. Ram, M. K. Husain and Y. S. Bedi,
“Volatile (As and Hg) and non-volatile (Pb and Cd) toxic heavy metals analysis in rhizome of
Zingiber officinale
Collected from different locations of North Western Himalayas by Atomic
absorption spectroscopy”,
Food and Chemical Toxicology
, 48, 2966-2971,
2010
.
29. S. Gupta, P. Pandotra, G. Ram, Rajneesh Anand,
A. P. Gupta,
Y. S. Bedi and G. R. Mallavarapu, “
Characterization of monoterpenoids-rich essential oil from the rhizome of
Zingiber officinale
Collected from different locations of North Western Himalayas by capillary gas
chromatography-ion trap mass spectrometry,
Natural Product Communications
,
6(1), 93-96,
2011.
30. Suphla Gupta, Rajni Sharma, Pankaj Pandrotra and Ajai Prakash Gupta, “Separation and
System Suitability Analysis for Monolithic Reversed Phase LC of Gingerols and Shogaol”,
Separation science,
3(2), 5-8,
2011.
31. Suphla Gupta, Rajni Sharma, Pankaj Pandotra,
A. P. Gupta
, “Chromolithic Method Development,
Validation and System Suitability Analysis of Ultra-Sound Assisted Extracted Anti-Cancer
Glycyrrhizic Acid and Glycyrrhetinic Acid from
Glycyrrhiza Glabra”
,
Natural Product
Communications
, 7(8), 991-994,
2012
.
32. R. Mudududdla, S. K. Jain, J. B. Bharate,
A. P. Gupta
, B. Singh, R. A. Vishwakarma and S. B. Bharate,
“ortho-Amidoalkylation of Phenols via Tandem One-Pot Approach Involving Oxazine Intermediate”,
J. Org. Chem.
, 77, 8821−8827,
2012
.
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