All oligos from Eurofins Genomics are analyzed before shipment as part of our analytical quality control (QC) using MALDI-TOF MS or ESI-MS.
Oligos containing wobbles (mixed bases) cannot be accurately determined using these QC methods due to the presence of multiple sequences.
The identity of oligos with wobbles is assessed based on corresponding signals within the range of the minimum to maximum expected molecular mass of the wobble sequence.
It is not possible to make statements about truncation sequences, adducts, and impurities for products with wobbles.
The QC reports with the MS spectra are provided either by default or upon request and are available in your customer account under "My Orders."