@article{rajopadhye_namjoshi_upadhye_2012,  title={Rapid validated HPTLC method for estimation of piperine and piperlongumine in root of Piper longum extract and its commercial formulation},  volume={22},  ISSN={0102-695X},  url={https://doi.org/10.1590/S0102-695X2012005000113},  DOI={10.1590/S0102-695X2012005000113},  number={6},  journal={Revista Brasileira de Farmacognosia},  publisher={Sociedade Brasileira de Farmacognosia},  author={Rajopadhye, Anagha A. and Namjoshi, Tejas P. and Upadhye, Anuradha S.},  year={2012},  month={Nov},  pages={1355–1361} }