Sample Buffer (article no. 105)Sample Buffer without Tween (article no. 106) Sample and antibody dilution buffer for immunoassays Storage: 2 - 8 °C or -15 to -30 °C (tolerates repeated freezing and thawing cycles) pH-value at 19.0 - 21.0 °C: Preservative: Expiry date when stored unopened: 7.2 ± 0.2 contains < 0.0014 % [w/w] reaction mass of CMIT/MIT (3:1) see label on the bottle For general laboratory use Instructions for use Sample Buffer is ready-to-use. Please shake the buffer thoroughly before use. Standards and samples should be diluted with Sample Buffer at 1:2 or higher. A useful dilution for most applications is 1:10 (1 part sample in 9 parts Sample Buffer). Standards and samples should be treated identically. The suitability of Sample Buffer for the respective assay must be tested by the user. Sample Buffer is designed for trouble free assays without interference. If you have background or false-positives - for example derived from cross reactivities or matrix effects - we recommend using LowCross-Buffer® or Assay Defender®. For further information please visit www.candor-bioscience.com. LowCross-Buffer and Assay Defender are registered trade marks of CANDOR Bioscience GmbH.