Use laboratory consumables which do not interfere with your bioassays.
Read the following articles:
- "On the disruption of biochemical and biological assays by chemicals leaching from disposable laboratory plasticware."
Olivieri A, Degenhardt OS, McDonald GR, Narang D, Paulsen IM, Kozuska JL, Holt A
Can J Physiol Pharmacol. 2012 Jun;90(6):697-703. Epub 2012 Apr 17.
- "How tubes can affect your experiments" by Matthew Lieber, Dr. Lars Borrmann, and Daniela Marino, Lab Manager May 2011
- “Bioactive Leachates from Lab Plastics“ by Dr. Holt, University of Alberta, G.I.T. Europe 9-10/2009
- “Eppendorf Interview” by Dr. Daniel Wehrhahn, G.I.T. Europe 9-10/2010
- “Bioaktive Substanzen in Kunststoff-Verbrauchsartikeln” von Dr. Daniel Wehrhahn, Nachrichten aus der Chemie“ 10/2009
- "Interference with spectrophotometric analysis of nucleic acids and proteins by leaching of chemicals from plastic tubes" by L. Kevin Lewis, Michael H. Robson, Yelena Vecherkina, Chang Ji, and Gary W. Beall, BioTechniques 04/2010
- “More biologists report plastic contamination“ by Daniel Cressey, Nature News, 12/2008
- “Plastics hamper DNA assays“ by Alla Katsnelson, Nature News 04/2010
- “Eppendorf Consumables: Solutions for Forensics“ by Dr. Daniel Wehrhahn, Forensic Technology Review 04/2011