1. Dolan JW (2006) The role of the signal-to-noise ratio in precision and accuration. How is the detection limit determined? LCGC EUROPE, 19 (1). http://www.chromatographyonline.com/lcgc/Column . Accessed: 20 May 2012
2. European Commission (2002) Commission Decision (EC) no 657/2002 of 12 August 2002 implementing Council Directive 96/23/EC concerning the performance of analytical methods and the interpretation of results. Off J Eur Commun L 221/8 (17 August 2002)
3. Funk W, Dammann V, Donnevert G (2007) Quality assurance in analytical chemistry. Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
4. Hahn-Deinstrop E (2006) Applied thin-layer chromatography best practice and avoidance of mistakes, 2nd revised and enlarged edn. Wiley-VCH, Weinheim
5. Harvey D (2000) Modern analytical chemistry. McGraw Hill, Toronto