- Posts: 15
- Joined: Fri Sep 03, 2004 12:09 pm
[M-H+HCO2H]-. And I, myself, have experience of acid analytes that form [M-H]- in ES- with formic acid. Would the response be better in ES+ or with basic pH?
Can anyone explain a little bit more about this (pH, ion mode and acid or basic analyte)?