TY - RPRT TI - Practical considerations when using radio frequency-only quadrupole ion guide for atmospheric pressure ionization sources with time-of-flight mass spectrometry. AU - Wei Hang AU - Cris Lewis AU - Vahid Majidi PY - 2003 DO - 10.1039/b209109g UR - https://pubmed.ncbi.nlm.nih.gov/12705387/ ID - 12705387 ER -