Here is a collection of links to user manuals, tools and videos for LC/MS on Agilent.com.
General
RapidFire High-throughput MS System Troubleshooting Guide
All Ions MS/MS Workflow Overview
A Comparison of Several LC/MS Techniques for Use in Toxicology
LC/MS User Manuals
6100 Series Quad LC/MS System Quick Start Guide
6100 Series Quadrupole LC/MS Systems Familiarization Guide
LC/TOF and LC Q-TOF User Manuals
6500 Series Q-TOF LC/MS Systems Site Preparation Checklist
6200 Series LCMS TOF Site Preparation Checklist
6230B Series TOF LC/MS System Installation Checklist
6200 Series TOF and 6500 Series Q-TOF LC/MS System Quick Start Guide
TQ LC/MS User Manuals
6400 Series LC/TQ Site Preparation Checklist
6400 Series Triple Quadrupole LC/MS System Quick Start Guide B.08.00
6400 Series Triple Quadrupole LC/MS System Concepts Guide B.08.00
Ion Trap User Manuals
500 Ion Trap LC/MS with the Agilent 1200 Infinity Series Quick Start Guide
Analysis of Surfactants Using the Agilent 500 Ion Trap LC/MS
Software User Manuals
G2725CA MassHunter Walkup System Quick Start Guide C.02.01
LC Catalogs and Parts Finder
InfinityLab LC Supplies catalog
Agilent Vial Selector / Finder
Agilent LC Column and Sample Prep Navigator
Videos
MassHunter Software Overview: A Faster Route to Insight
How It Works Video - 6400 Series Triple Quadrupole LC/MS Systems
6470 Triple Quadrupole LC/MS Overview Video
Analysis of Pharmaceuticals by LC/QQQ
Overview of Agilent Metabolomics Solutions
Triggered MRM for Analysis of Pesticides in Complex Food Matrices