Why Tweaked Peptides Can’t Be Picked Up in Swabs – Part 1 – The Science, and Why the QLD Samples are Useless
In doping control analysis for small molecules, such as peptides, the sample pre-treatment is relevant, since these molecules are susceptible to oxidation, enzymatic proteolysis, and degradation. Therefore, the storage of blood and urine samples is of vital importance for carrying out an adequate analysis. Freezing at −20 °C is adequate and avoids peptide degradation. The […]