TY - RPRT TI - Normal-phase high-performance liquid chromatographic separations using ethoxynonafluorobutane as hexane alternative. II. Liquid chromatography-atmospheric pressure chemical ionization-mass spectrometry applications with methanol gradients. AU - M Kagan AU - M Chlenov AU - C M Kraml PY - 2004 DO - 10.1016/j.chroma.2004.01.042 UR - https://pubmed.ncbi.nlm.nih.gov/15088754/ ID - 15088754 ER -