6Keith Bader, John Hyde, Peter Watler, and Amber Lane. Online Total Organic Carbon (TOC) as a Process Analytical Technology for Cleaning Validation Risk Management. Pharmaceutical Engineering, January/February 2009:8419.
7William E, Hall M. Determining appropriate acceptance criteria for cleaning programs [J]. J Valid Technol, 2004, 10(2): 120.
8Layton D W, Mallon B J, Rosenblatt D H, et al. Deriving allowable daily intakes for systemic toxicants lacking chronic toxicity data [J]. J Regul Toxicol Pharm, 1983, 3(1) :224.