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Thermo Fisher Scientific Ion Selective Electrodes Ammonia User Manual

Page 19

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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 the 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.