Injections were performed in split mode with a 1:10 ratio. MS detectionwas performed in the mass range of 50e450 atomic mass unit (amu) at 4 scans s1. The solvent delay was 6 min.
Injections were performed in split modewith a 1:10 ratio. MS detectionwas performed in the mass range of50e450 atomic mass unit (amu) at 4 scans s1. The solvent delaywas 6 min.