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Agilent Technologies G1978B User Manual

Page 25

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Multimode Source for 6100 Series Single Quad LC/MS Set-Up Guide

25

Verification

2

To verify sensitivity for 6130 and 6140 Quads - G1978B Multimode, Positive SIM Modes

Sensitivity Verification for Multimode in ESI, Positive SIM Mode

1 Start up the ChemStation software.

2 Change the view to MSD Tune, and start an Autotune.

After the autotune completes, you may need to wait up to 30 minutes to
allow for the calibrant solution to be pumped out of the Quad instrument.
This minimizes any background signal resulting from the calibrant.

3 Change the view to Method and Run Control, and load the method

6130SIMES_MM.M (6130 model) or 6140SIMES_MM.M (6140 model).

4 Edit the method to ensure that 75:25 methanol/water with 5mM ammonium

formate is selected as the LC solvent.

5 Place the vials into the LC autosampler.

Position #1: empty, uncapped vial

Position #2: vial of the solvent used for dilution (solvent blank)

Position #3: vial with the reserpine sample (1 pg/µL)

6 Run the method.

The method does an FIA run with one injection of the empty vial, five
injections of the solvent blank, and five injections of the reserpine sample.

You may need to further optimize the nebulizer pressure by running FIA

Solvent

75:25
methanol/water

with 5mM

ammonium formate

75:25
methanol/water

with 5mM

ammonium formate

Method name

6130SIMES_MM.M
(6130 model)

6140SIMES_MM.M
(6140 model)

6130SIMCI_MM.M
(6140 model)

6140SIMCI_MM.M
(6140 model)

Performance Specification

20: 1 pk-pk

100: 1 rms

10: 1 pk-pk

50: 1 rms

Table 2

6130 and 6140 Quad Performance Verification Summary, SIM Mode

G1978B
ES Positive SIM Mode

G1978B
APCI Positive SIM Mode