Did you know...
... that MALDI-TOF MS offers direct molecular weight distributions and more?
In contrast to GPC, MALDI-TOF MS yields absolute molecular weights not relative ones. MALDI-TOF MS is a fast and versatile method to address challenges in the synthesis or quality control of polymers. Structural features such as repeating units (monomer), sum mass of the end-groups, average masses Mn and Mw are readily available. MS/MS analysis using MALDI-TOF/TOF instrumentation yields information about the block length of di-block-copolymers and masses of single end-groups.
... that MALDI-TOF MS allows for polymer analysis in minutes?
The simplicity of the measurement and the straightforward data analysis using dedicated software like PolyTools™ or Polymerix (Sierra Analytics) enables the user to get structural information in a few minutes.
Industrial materials such as additives are often difficult to analyze using HPLC MS. Employing TLC MALDI is an alternative approach to reveal impurities or map changes against a standard.