PASCO Specialty & Mfg. PASCO CI-6735 Benutzerhandbuch

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012–06616A
Nitrate Ion Selective Electrode
Table of Contents
Introduction......................................................................................................................................... 1
Theory .................................................................................................................................................. 1
Equipment ........................................................................................................................................... 3
Included: ....................................................................................................................................... 3
Additional Required: .................................................................................................................... 3
Required Solutions.............................................................................................................................. 3
General Preparation ........................................................................................................................... 4
Electrode Preparation.................................................................................................................... 4
Electrode Slope Check Using ScienceWorkshop .......................................................................... 4
Measurement ....................................................................................................................................... 5
Measuring Hints............................................................................................................................ 5
Sample Requirements ................................................................................................................... 5
Units of Measurement................................................................................................................... 5
Measurement Procedure .................................................................................................................... 6
Direct Measurement...................................................................................................................... 6
Low Level Nitrate Determination ................................................................................................. 7
Electrode Characteristics ................................................................................................................... 9
Reproducibility ............................................................................................................................. 9
Interferences.................................................................................................................................. 9
Temperature Influences............................................................................................................... 10
Electrode Response ..................................................................................................................... 10
Limits of Detection ..................................................................................................................... 11
pH Effects ................................................................................................................................... 11
Electrode Life ............................................................................................................................. 11
Maintenance ...................................................................................................................................... 12
Electrode Storage ........................................................................................................................ 12
Specifications..................................................................................................................................... 12
Troubleshooting Guide ..................................................................................................................... 12
Glassware/Plastic-ware ............................................................................................................... 12
Electrode ..................................................................................................................................... 12
Standards & Reagents ................................................................................................................. 13
Sample ........................................................................................................................................ 13
Technique .................................................................................................................................... 13
Troubleshooting Hints ...................................................................................................................... 14
Technical Support ............................................................................................................................. 17
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