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G7121A
Agilent Technologies G7121A User Manual
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Agilent T
e
chnologies
Agilent InfinityLab LC Series
1260 Infinity II
Fluorescence Detectors
User Manual
2
Table of Contents
Table of Contents
5
1 Introduction to the Fluorescence Detector
9
Introduction to the Detector
10
Fluorescence Detector (FLD)
11
Introduction to the Detector
11
Fluorescence Detector (FLD) Spectra
13
How the Detector Operates
15
Raman Effect
18
Optical Unit
19
Reference System
26
Analytical Information from Primary Data
27
Fluorescence Detection
27
Phosphorescence Detection
28
Processing of Raw Data
29
System Overview
32
Operating Principle
32
Leak and Waste Handling
33
Bio-Inert Materials
38
2 Site Requirements and Specifications
41
Site Requirements
42
Physical Specifications
45
Performance Specifications
46
Specifications
46
Specification Conditions
51
3 Using the Fluorescence Detector
53
Magnets
54
Turn On/Off
55
Status Indicators
57
Instrument Configuration
58
Set up the Detector with Agilent Open Lab Chemstation
60
The Detector User Interface
61
Detector Control Settings
63
Method Parameter Settings
64
Advanced Settings
65
Acquire Spectra (G7121B Only)
68
Special Settings
69
Time Table
72
Instrument Curves
73
Agilent Local Control Modules
74
4 Preparing the Module
77
Leak and Waste Handling
78
Before You Start
80
Solvent Information
81
5 Optimizing the Detector
87
Getting Started and Checkout
88
Starting Your Detector
88
Setting the Chromatographic Conditions
89
Observe the Maxima Via the Isoabsorbance Plot
92
Method Development
93
Step 1: Check the LC System for Impurities
94
Step 2: Optimize Limits of Detection and Selectivity
95
Step 3: Set up Routine Methods
104
Example: Optimization for Multiple Compounds
108
Setting the Chromatographic Conditions
108
Evaluating the System Background
114
How to Collect Spectra with Modes SPECTRA ALL in PEAK and APEX SPECTRA ONLY
116
Optimization Overview
119
Design Features Help Optimization
121
Check Performance before You Start
121
Finding the Best Wavelengths
122
A Real Example
123
Finding the Best Signal Amplification
124
FLD Scaling Range and Operating Conditions
125
Changing the Xenon Flash Lamp Frequency
130
Lamp Life Savings
131
Selecting the Best Response Time
132
Reducing Stray Light
135
6 Troubleshooting and Diagnostics
137
Available Tests Vs User Interfaces
138
Agilent Lab Advisor Software
140
Diagnostic Signals
141
Overview of Diagnostic Signals
141
Baseline Problems Deriving from Xenon Flash Lamp/Trigger Pack Assembly
142
Wander/Drift Problems Due to Temperature Changes
143
Monitoring of Additional Signals
144
Agilent Lab Advisor
144
7 Error Information
147
What Are Error Messages
148
General Error Messages
149
Timeout
149
Shutdown
150
Remote Timeout
150
Lost CAN Partner
151
Leak
151
Leak Sensor Open
152
Leak Sensor Short
152
Compensation Sensor Open
153
Compensation Sensor Short
153
Fan Failed
154
Open Cover
154
Cover Violation
155
ERI Messages
155
Detector Error Messages
156
Lamp Cover Open
156
FLF Board Not Found
156
ADC Not Calibrated
157
A/D Overflow
157
Flash Lamp Current Overflow
158
No Light at Reference Diode Despite Lamp Is on
158
Flash Trigger Lost
159
Wavelength Calibration Failed
159
Wavelength Calibration Lost
160
Flow Cell Removed
160
Motor Errors
161
8 Test Functions and Calibration
165
Introduction
166
Diagram of Light Path
170
Lamp Intensity Test
171
Lamp Intensity History
172
Raman ASTM Signal-To-Noise Test
173
Using the Agilent Lab Advisor
176
Interpretation of the Results
177
Wavelength Accuracy Test
178
Using the Agilent Lab Advisor
178
Interpretation of the Results
181
Wavelength Verification and Calibration
182
Wavelength Calibration Process
184
Wavelength Calibration Procedure
187
Excitation and Emission Grating Resistance History
191
D/A Converter (DAC) Test
192
Test Evaluation
193
Dark-Current Test
194
Test Failed
195
Using the Built-In Test Chromatogram
196
Procedure Using the Agilent Lab Advisor
196
Other Lab Advisor Functions
198
Module Info
198
Board Check and Change
200
Instrument Control
201
EMF - Early Maintenance Feature
202
Spectral Scan (G7121B Only)
203
9 Maintenance
205
Default Chapter
206
Introduction to Maintenance
206
Warnings and Cautions
207
Overview of Maintenance
209
Cleaning the Module
210
Remove and Install Doors
211
Exchanging a Flow Cell
213
How to Use the Cuvette
217
Flow Cell Flushing
218
Correcting Leaks
219
Replace Leak Handling System Parts
221
Replacing Module Firmware
223
Tests and Calibrations
224
10 Parts for Maintenance and Repair
225
Overview of Maintenance Parts
226
Kits
228
11 Identifying Cables
231
Cable Overview
232
Analog Cables
234
Remote Cables
236
CAN/LAN Cables
240
Agilent Module to PC
241
USB Cables
242
12 Hardware Information
243
Firmware Description
244
Electrical Connections
247
Rear View of the Module
248
Information on Instrument Serial Number
249
Interfaces
250
Overview Interfaces
252
ERI (Enhanced Remote Interface)
255
USB (Universal Serial Bus)
257
Setting the 6-Bit Configuration Switch
258
Special Settings
260
Instrument Layout
262
Early Maintenance Feedback
263
13 Appendix
265
General Safety Information
266
Safety Standards
266
General
266
Before Applying Power
267
Ground the Instrument
267
Do Not Modify the Instrument
268
Do Not Operate in an Explosive Atmosphere
268
Do Not Remove the Instrument Cover
268
In Case of Damage
268
Solvents
269
Safety Symbols
270
Waste Electrical and Electronic Equipment (WEEE) Directive
272
Radio Interference
273
Sound Emission
274
Solvent Information
275
Agilent Technologies on Internet
276
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Agilent Technologies G7121A Specifications
General
Brand
Agilent Technologies
Model
G7121A
Category
Measuring Instruments
Language
English
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