1. L. Blecher, Excipients—the important components, Pharm. Proc. (January 1995) 6.
2. M.L. Weiner, L.A. Kotkoskie, Excipient Toxicity and Safety, Marcel Dekker, New York, 1999.
3. ICH Harmonized Tripartite Guideline, Q3C Impurities: Residual Solvents, Fed. Reg. 62 (1997) 67377.
4. The United States Pharmacopeia 26 (2003) 2077.
5. B. Kolb, L.S. Ettre, Static Headspace-Gas Chromatography: Theory and Practice, Wiley–VCH, New York, 1997.