Polyethylene Glycol: A reagent for tuning and calibrating mass spectrometers for positive-ion atmospheric pressure chemical ionization

Laser desorption-atmospheric pressure ch

Laser desorption-atmospheric pressure chemical ionization: a novel ion source for the direct coupling of polyacrylamide gel electrophoresis to mass spectrometry

✍ Joshua J. Coon; Heather A. Steele; Philip J. Laipis; W. W. Harrison 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 English ⚖ 161 KB

## Abstract Laser desorption‐atmospheric pressure chemical ionization‐mass spectrometry (LD‐APCI‐MS) is presented for the atmospheric pressure (AP) sampling of tryptic peptides directly from a polyacrylamide gel. In contrast to other gel sampling mass spectrometric approaches, this technique does n