We offer PICK ‘n POST™ molecular weight determination by MALDI-MS for proteins below 50 kDa
Does your protein or peptide weigh below 50 kDA? Then we use MALDI-MS analysis to determine the intact mass weight.
You can use the service to
- Compare samples – for example batch to batch variation.
- Determine the purity of your sample.
- Look for modification such as glycosylations, acetylations, oxidations, etc.
- Compare with theoretical Mw.
The accuracy on this service lies within 50 ppm (+/- 1 Dalton for a 20 kDa protein).
We offer this services as PICK ‘n POST with results in 4-8 days. The report lays out the data in a way that is easy to read and understand.
What is the advantage of MALDI-MS compared to the ESI-MS?
The main advantage is that the full mass spectrum can be interpreted without any deconvolution step. We use ESI-MS for proteins up to 250 kDa.