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- Posts: 3
- Joined: Fri Jan 18, 2019 10:01 am
I am developing a method for DMP,DEP,DBP,DEHP,DNOP (Phthalates) using LCMSMS at 20 ppb level. Problem is I am not able to eliminate blank interference. I tried with different eluents (0.1% formic acid and acetonitrile, methanol) and columns (C18, C8, phenyl etc). All the cases I am getting blank interference at the same transition of DMP,DBP. Can anybody suggest a solution