How much total ionic strength adjustment buffer (TISAB) should be added to fluoride standards and sample when using a Fluoride Ion Selective Electrode (ISE)?

Document ID

Document ID TE4537

Version

Version 3.0

Status

Status Published

Published Date

Published Date 07/12/2018
Question
How much total ionic strength adjustment buffer (TISAB) should be added to fluoride standards and sample when using a Fluoride Ion Selective Electrode (ISE)?
Summary
Amount of TISAB required in Fluoride ISE measurements
Answer
It is recommended to use one Fluoride Ionic Strength Adjustor (ISA) powder pillow (Product # 258999) per 25 mL of fluoride standard or water sample. Alternatively, it is recommended to use 5 mL of the liquid Fluoride Ionic Strength Adjustor (ISA), 3.78L (Product # 2829017) per 25 mL of fluoride standard or water sample.

 

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