Rajagopalachari Nk, S., & P, S. (2018). DEVELOPMENT OF ANALYTICAL METHOD FOR THE DETERMINATION OF NINHYDRIN-POSITIVE SUBSTANCES IN AMINO ACIDS BY HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY. Asian Journal of Pharmaceutical and Clinical Research, 11(16), 51–53. https://doi.org/10.22159/ajpcr.2018.v11s4.31674