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14-2

Agilent 7500 ICP-MS ChemStation Operator’s Manual

Performing an Isotope Ratio Analysis

Performing an Isotope Ratio

Analysis

The Isotope Ratio Analysis function enables the operator to measure and quantitate

isotope ratios using the Agilent 7500. It is mainly used for geological and nuclear

applications such as determining the age and origin of geological samples, and mea-

suring uranium enrichment.

This chapter explains how to set isotope ratio parameters and generate an isotope

ratio report.

Default Chapter7
- Table of Contents7
Preface24
- Who Should Read this Book24
- How to Use this Book24
- Conventions Used in this Book27
- Where to Go for more Information30
- Agilent Technologies on Internet30
Using the Agilent 7500 ICP-MS Chemstation Software32
- Accessing and Exiting the Software32
  - Accessing the Software32
  - Exiting the Software35
- Using Online Help35
- Moving Within the Software36
- Using the Command Line37
- Supplemental Information38
Configuration40
- Configuring the Chemstation Software40
Startup, Shutdown and Status52
- Starting the Instrument53
- Shutting down the Instrument62
- Checking the Instrument Status65
- Typical Meter Values for the Vacuum System74
Tuning78
- Overview79
- Tuning for Sensitivity (Agilent 7500A)80
  - Plasma Condition84
  - Ion Lenses86
- Reducing Oxide Ions88
- Reducing Doubly Charged Ions91
- Shieldtorch System94
- Theory of the Shieldtorch System94
  - At Behind the Interface94
  - In the Plasma95
- Feature of the Shieldtorch System98
  - Effect of Carrier Gas Flow Rate98
  - Each of the Features for the Three Plasma Conditions101
- Notes for the Use of the Shieldtorch System103
- Tuning the Shieldtorch (High Sensitivity Mode)103
  - Tuning Solution104
  - Tuning Procedure104
- Tuning the Shieldtorch (Soft Extraction Mode)107
  - Tuning Solution107
  - Tuning Procedure107
- Tuning the Shieldtorch (Cool Plasma)111
  - Tuning Solution111
  - Tuning Procedure111
- Tuning for Sensitivity (Agilent 7500Ce)115
- Tuning for Sensitivity (Agilent 7500Cs)138
- Tuning for Resolution and Mass Axis163
- Tuning the Detector166
- Generating a Tune Report173
- Copying a Tune Parameters174
- Creating and Using a Tune File175
  - Saving the Tuning File176
  - Loading a Tune File177
- Autotune178
Creating a Method194
- Creating a Method Using the Method Wizard195
- Using the Default Method as a Template204
- Modifying a Method283
Setting up a Sequence299
- Creating a Sequence301
- Position and Run311
- Simulating a Sequence312
  - Viewing the Sequence Log File315
- Modifying a Sequence317
  - Editing Sample Log Table to Modify a Sequence317
  - Modifying Sequence318
- Saving the Sequence319
Chained Sequence321
- Creating a Chained Sequence323
- Simulating a Chained Sequence328
- Viewing the Chained Sequence Log File328
- Saving the Chained Sequence329
Running a Sample Analysis332
- Running Samples by Using a Sequence333
  - Loading a Sequence334
  - Running a Sequence335
- Running a Sample by Using a Chained Sequence338
  - Loading a Chained Sequence338
  - Running a Chained Sequence339
- Running Samples Manually340
  - Loading a Method340
  - Acquiring Sample Data342
- Monitoring a Run349
  - Viewing a Real-Time Display349
  - Altering the Display351
- Stopping a Run352
Viewing Spectra356
- Displaying Spectra357
- Analyzing Spectra366
- Subtracting Background Spectra372
- Viewing a Tabulated Spectrum373
  - Performing a Points Per Peak Tabulation373
  - Performing a Mass Tabulation375
- Editing and Printing out the Header Information377
- Displaying Replicate Files380
- Editing Spectral Information381
Viewing a Time Chart390
- Displaying a Time Chart391
Creating Custom Reports/Database414
- Creating a Custom Report415
- Updating a Custom Report Database433
- Viewing the Database434
- Creating Charts from a Custom Database435
Performing a Quantitative Analysis438
- Running Calibration Standards439
- Generating a Calibration Curve440
- Printing Calibration Data459
- Converting to Calibration Method461
- Blank Subtraction462
- Generating a Quantitation Report463
Performing a Semiquantitative Analysis468
- Running a Calibration Sample469
Performing an Isotope Ratio Analysis494
- Setting Isotope Ratio Parameters495
- Generating an Isotope Ratio Analysis Report500
Performing an Isotope Dilution Analysis506
- Setting Isotopic Dilution Analysis Parameters507
- Generating an Isotope Dilution Analysis Report513
Tools Menu520
- Dolist520
  - How to Use Dolist520
- Configure Dolist523
  - How to Configure Dolist523
Database Editor526
- Starting the Database526
- Select Database527
- Editing the Database528
- Using the Molecular Database Editor529
- Save Database530
Installing the Agilent 7500 Chemstation Software (Windows XP)532
- Windows XP Configuration532
  - Windows XP Configuration533
  - Creating User Account539
- I/O Library Setup541
- Bootp Service Setup545
Installing the Agilent 7500 Chemstation Software (Windows 2000)577
- Windows 2000 Configuration578
- Installation the Patch Files611
- GPIB Configuration612
  - If no Communication with 7500 When GPIB Is 82350A or 82350B614
Appendix617
- Top Task618
- Appendix A618
- Appendix B629
- Appendix C645
  - Execution of Dead Time Calibration646
- Appendix D Compression and Decompression of Files652
  - Decompressing a File654
- Appendix E Precautions on Using the ICP-MS Chemstation with the LC/GC Chemstation655

Brand	Agilent Technologies
Model	7500 ICP-MS
Category	Laboratory Equipment
Language	English

Agilent Technologies 7500 ICP-MS User Manual

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