Can I use the colorimetric Silica methods in seawater samples?

Document ID

Document ID TE794

Version

Version 3.0

Status

Status Published

Published Date

Published Date 07/26/2018
Question
Can I use the colorimetric Silica methods in seawater samples?
Summary
Silica testing in seawater
Answer
Method 8185 for silica can be used for seawater samples. Seawater will impact the color intensity of other silica tests. It might be possible to create a user entered calibration curve using silica standards spiked with the expected salinity of the samples but this is not something that is supported by Hach.

Method 8185 can be downloaded from the Hach online Water Analysis Handbook.
 

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