eutech-instruments cyanide epoxy User Manual

Page of 18
Instruction Manual 
 
Cyanide Electrode
 
 
15
- Measure correctly and accurately. 
- Review 
TROUBLESHOOTING HINTS
 
Standards and Reagents 
Whenever problems arise with the measuring procedure that has been used successfully in the past, 
be sure to check the standard and reagent solutions. If in doubt about the credibility of any of the 
solutions, prepare them again. Errors may result from contamination of the ISA, incorrect dilution 
of standards, poor quality distilled/deionized water, or a simple mathematical miscalculation. 
 
Sample 
Look for possible interferences, complexing agents, or substances which could affect the response 
or physically damage the sensing electrode (or the reference electrode) if the electrodes work 
perfectly in the standard, but not in the sample. 
 
Try to determine the composition of the samples prior to testing to eliminate a problem before it 
starts.  (See 
Measuring HintsSample Requirements
and
 Interferences
.) 
 
Technique 
Be sure that the electrode's limit of detection has not been exceeded. Be sure that the analysis 
method is clearly understood and is compatible with the sample. 
 
Refer to the instruction manual again. Reread sections 
GENERAL PREPARATION 
and
 ELECTRODE 
CHARACTERISTICS
 
If trouble still persists, call Eutech Instruments Pte Ltd. at (65) 6778-6876 and ask for the Customer  
Services Department.