How-to analyze total and dissolved organic carbon (TOC/DOC)

The Walkerton Clean Water Centre has created instructional videos to provide guidance to operators and trained persons. This series demonstrates how to analyze different parameters to assess drinking water quality.
Visit wcwc.ca for information on our water operator training program and pilot testing services. More resources related to drinking water are available on our Drinking Water Resource Library.

[@omerhossain9542]

Is there any chemical method of measuring DOC..?

[@Ch3atONx302]

Yes

[@bhupinderfarmaha8553]

can you please share details of the suction pump?

[@proskhok1763]

Can you show how to fractionate hydroponic acids and hydrophilic DOM using XAD-8 and XAD-4?

[@walkertoncleanwatercentre]

Sorry we don't perform this in house so we will not be able to at this time!

[@othaeryn5502]

Is this the method for measuring DOC concentration by high temperature combustion?

[@walkertoncleanwatercentre]

This is using the UV/persulfate oxidation method

[@jonathanplynch]

UV vs combustion… I believe shimadzu (spelling?) TOC uses combustion… GE/Suez use UV in a two channel flow to look at inorganic vs total carbon to determine total organic. (X-Y=total organic.)
What application/industry are you using it in?
For cleaning, there might be a few flaws in the method presented.

[@alexgunawan98]

Question : any diff between TOC and TSS ?

[@TassyMu]

Yes . To my understanding -
:- TSS is a measure of Total suspended solids, it measures the weight of the solids on the paper after filtering. While TOC measures the total organic carbon through the TOC-L analyzer.

[@alexgunawan98]

@@TassyMu Any digital Meter to measure it on water ponds ?

[@walkertoncleanwatercentre]

@@alexgunawan98 In drinking water, we normally will digitally measure turbidity instead. There are a variety of methods out there depending on your application!

[@krishnakanttiwari7626]

How to calculate toc

[@Nur_Md._Mohiuddin_Chy._Toha]

👍👍👍👍👍👍👍