User guide

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Agilent G1978B Multimode Source for 6100 Series Single Quad LC/MS
User Guide
Agilent Technologies
3
Reference
Safety and Specifications 38
Safety 38
Safety Symbols 42
Technical Specifications 43
Overview 44
Benefits of a multimode source 44
Mobile phase considerations when using the multimode source 52
Flowchart summarizing parameter choices for different modes 54
Source comparison in positive ion mode 55
Source comparison in negative ion mode 56
Single analysis in MM-ES+APCI mode with fast switching 57
Guidelines 58
Guidelines for multimode source settings in MM-ES mode 58
Guidelines for multimode source settings in MM-APCI mode 59
Guidelines for multimode source settings in MM-ES+APCI mode 60
Guidelines for positive/negative polarity switching in mixed mode 61
Empirical Formulas for high resolution MS 63
G2421A MM-ES Calibration Ions 63
G2422A MM-APCI Calibration Ions 64
Tuning Mix and Test Mix 65
G2421A ES Tuning Mix (100mL) 65
G2422A APCI Tuning Mix (100mL) 66
Chemical structures in the multimode test mix 67
This chapter contains reference information to help you run your 6100 Series
Single Quad LC/MS with a multimode source.