Agilent Technologies G1978B Uživatelská příručka stáhnout pdf (Strana 12)

12 Multimode Source for 6100 Series Single Quad LC/MS User Guide

1 Basic Operation and Maintenance

To create a method for alternating ESI and APCI operation

9 Click the OK button.

Figure 3 MM-ES and MM-APCI switching using Set Up MSD Signals dialog box

NOTE

In general, use the mixed mode operation (MM-ES+APCI setting with Signal 1) instead of

alternating MM-ES (Signal 1) and MM-APCI (Signal 2) mode switching. Two times as many

scans are obtained during elution of a chromatographic peak, and no delay is needed

between scans, resulting in better data. It is rarely necessary to know whether a compound

responds purely in ESI or APCI modes on a chromatographic time scale.

Ionization mode for

Signal 1 and Signal 2

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 71 72

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Agilent Technologies G1978B Uživatelská příručka Strana 12