R.SRIKANTH, et al. “DEVELOPMENT AND VALIDATION OF RP-HPLC PRE-COLUMN DERIVATISATION FOR THE TRACE LEVEL DETERMINATION OF TERTBUTYLAMINE IN TIGECYCLINE DRUG SUBSTANCE”. International Journal of Pharma and Bio Sciences, vol. 4, no. 2, June 2013, pp. 522-31, https://ijpbs.net/index.php/journal/article/view/2199.