Niranjan Singh

Spectrophotometric determination of menadione and menadione sodium bisulfite in pharmaceutical preparations

D. Sankar, M. Reddy, C. Sastry, 1987 .

Spectrophotometric determination of traces of boron in high purity silicon

D. Parashar, A. K. Sarkar, Niranjan Singh, 1989 .

Need of Alcohol Reference Materials and Reliable Measurement of Alcohol Content by Breath Alcohol Analyzer in India: An Overview

P. Yadav, M. Kulshrestha, Nahar Singh, 2019, MAPAN.

Need of Alcohol Reference Materials and Reliable Measurement of Alcohol Content by Breath Alcohol Analyzer in India: An Overview

V. N. Ojha, S. Tripathy, P. Yadav, 2020 .

Evaluation of purity with its uncertainty value in high purity lead stick by conventional and electro-gravimetric methods

P. Gupta, S. Tripathy, Khem Singh, 2013, Chemistry Central Journal.