Thermo Fisher Scientific Ion Selective Electrodes Cyanide User Manual
Page 2
Cyanide Electrode
Instruction Manual
2
TABLE OF CONTENTS
GENERAL INSTRUCTIONS .......................................................................................................... 3
Introduction ..............................................................................................................................................3
Required Equipment.................................................................................................................................3
Required Solutions ...................................................................................................................................3
GENERAL PREPARATION............................................................................................................ 4
Electrode Preparation ...............................................................................................................................4
Electrode Slope Check (with pH/mV meter) ...........................................................................................4
Electrode Slope Check (with an ion meter)..............................................................................................4
MEASUREMENT.............................................................................................................................. 5
Measuring Hints .......................................................................................................................................5
Sample Requirements...............................................................................................................................5
Units of Measurement ..............................................................................................................................6
MEASUREMENT PROCEDURE ................................................................................................... 6
Direct Measurement .................................................................................................................................6
Direct Measurement of Cyanide (using a pH/mV meter) ........................................................................6
Direct Measurement of Cyanide (using an ion meter) .............................................................................7
Low-Level Cyanide Measurements (using a pH/mV meter)....................................................................8
ELECTRODE CHARACTERISTICS............................................................................................. 9
Reproducibility.........................................................................................................................................9
Interferences .............................................................................................................................................9
Complexation .........................................................................................................................................10
Temperature Influences..........................................................................................................................10
Electrode Response ................................................................................................................................11
Limits of Detection.................................................................................................................................12
pH Effects...............................................................................................................................................12
Electrode Life.........................................................................................................................................12
Electrode Storage ...................................................................................................................................12
ELECTRODE THEORY ................................................................................................................ 12
Electrode Operation ...............................................................................................................................13
TROUBLESHOOTING GUIDE .................................................................................................... 14
Meter ......................................................................................................................................................14
Plastic-ware ............................................................................................................................................14
Electrodes ...............................................................................................................................................14
Standards and Reagents..........................................................................................................................15
Sample....................................................................................................................................................15
Technique...............................................................................................................................................15
TROUBLESHOOTING HINTS..................................................................................................... 16
SPECIFICATIONS.......................................................................................................................... 18
ORDERING INFORMATION....................................................................................................... 18