List view / Grid view

Mass Spectrometry

 

Identification of peptides and proteins in suspected illegal medicinal products using MALDI-TOF-MS

26 February 2019 | By , ,

Matrix-assisted laser desorption/ionisation (MALDI) time-of-flight (TOF) mass spectrometry (MS) has proven to be an excellent technique for identification of illegally distributed peptides and proteins for human use. The identification of proteins is mainly based on peptide mass fingerprinting (PMF) – ie, the bottom-up approach – while the small proteins and…

Whitepaper: Characterising antibody-drug conjugates using micro pillar array columns combined with mass spectrometry (μPAC™-MS)

12 December 2018 | By

The use of micro pillar array columns (μPAC™) for characterising antibody-drug conjugates is presented. Kadcyla® (ado-trastuzumab emtansine) and, for comparison, Herceptin® (trastuzumab) tryptic digests were analysed on a 200 cm μPAC™ C18 column and peaks eluting were detected by ultraviolet (UV) spectroscopy and high-resolution mass spectrometry (MS).