Using the ESCi Multi-Mode Ionization Source
117
A
Figure A-12 ESCi Mode Disabled
A.2 Daidzein Test
Use the Daidzein (
) test to prepare the instrument for ESCi operation, evaluate
its performance, and determine the ratio of peak heights to the level of noise in a mass
chromatogram (signal-to-noise ratio).
Figure A-13 Daidzein (m/z = 255.2 [M + H] and 253.2 [M – H])
O
O
O
H
OH
Summary of Contents for Micromass ZQ 2000
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