轻松解决安捷伦6820气相色谱维护与故障排除方法

仪器资料 · 发表于 2017-6-8 16:38:21

Important Safety Warnings 18
Many internal parts of the GC carry dangerous voltages 18 Electrostatic discharge is a threat to GC electronics 18 Many parts are dangerously hot 19
Hydrogen 20
Electron Capture Detector (ECD) 20
Safety and Regulatory Certifications 24
Sound Emission Certification for Federal Republic of
Germany 25
Safety Symbols 26 Electromagnetic Compatibility 27 Miscellaneous 28
Fuses and batteries 28 Cleaning 28
Recycling the product 28 Maintenance Schedules 29 Maintenance Method 31 Consumables and Supplies 32 Capillary Columns 37
Method Mismatch 40 Not Ready 41 Warnings 42
Thermal Shutdowns 44
Faults
3 Chromatographic Troubleshooting
Baseline Symptoms 50
Position 50
Wander and drift 50 Noise 51
Spiking 53
Retention Time Symptoms 54
Retention time drift 54
Retention time wander (reproducibility) 54
Peak Symptoms 56
No peaks 56 Inverted peaks 56 Extra peaks 56
Deformed peaks 58
4 Troubleshooting Guide
Before You Begin . . . 62
Resolution Problems 63
Loss of resolution 63
Retention Time Problems 65
Retention time shift 65
Baseline Problems 67
Excessive column bleed 67 Erratic baseline (wander, drift) 68 Noisy baseline 70
Peak Problems 71
Fronting peaks 71
Tailing peaks 72
Ghost peaks 74
Split peaks 76 Changes in peak size 77
5 Troubleshooting Procedures
Test Plot 80
Communication Problems 81
Capillary Inlet
……