Table 2 Parameters for positive and negative ionization modes MS/MS analysis

From: Metabolomic profiling of a dementia cohort in Egypt: a step towards a neuro-exposome model

Parameters

Positive Mode

Negative Mode

Curtain gas

25 psi

25 psi

Ion spray voltage

5500

−4500

Source temperature

500 °C

500 °C

Ion source gas 1 and 2

45 psi

45 psi

  1. This table summarizes the key parameters used for MS/MS analysis in both positive and negative ionization modes.