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Unlocking Clarity: Testing turbid water for THPS residuals

Updated: May 1

Navigating the OMMICA THPS method to deal with turbidity in your water samples 


As a chemist, you are probably familiar with the challenges presented by hazy or turbid water samples when using a colorimetric test. This article will discuss how to measure THPS accurately in the presence of sample turbidity, using the OMMICA THPS method in conjunction with a colorimeter. 

Scenario: You're working with a water sample, and it looks hazy or cloudy, thanks to the suspended solids. This cloudiness, also known as turbidity, hinders your measurements using a colorimeter or spectrophotometer. Some of the light passing through is scattered because of the solids in the sample, which interferes with accurate results.  

This is where OMMICA THPS test comes to the rescue! It comes equipped with the sample blank, a clever solution to tackle the issue. This remarkable instrument aids in removing interference caused by traces of turbidity and sample colour. Having a superhero sidekick in your lab to help you get the clearest results possible amounts to that. 

Now, let's clarify the subject to our young chemistry enthusiasts. 

Why Turbidity Matters: 

Envision your water sample as a magical potion. It becomes rather hazy at times due to tiny particles floating in it. These particles may pose issues by scattering light when we utilize a colorimeter, a specialised device used to measure the contents of the potion. Consider it as difficult as attempting to see through fog - an arduous task! 

The Superhero Sidekick - Sample Blank 

The THPS test offered by OMMICA resembles a superhero team-up. It introduces a helpful ally known as the sample blank, which corrects for the presence of the bothersome particles. This ally can counterbalance the interference that the hazy potion creates, ensuring that our outcomes are accurate. The image below shows the impact of the blank.

Turbidity-Friendly Dilution 

Another neat trick up the sleeve for the THPS test is that it dilutes the sample by a factor of 5. It's similar to diluting your potion with a small amount of water to make it more translucent. Managing turbid samples is made simpler with this dilution. But what if there's still too much cloud cover? 

Removing the Clouds 

Don't worry if the potion still appears too hazy. To get rid of the additional particles, you can use a basic syringe filter, which is similar to a little sieve. This ensures that the THPS in the water, not the foggy distractions, are our primary focus. 


The Aqueous Phase Secret 

The part of the potion that contains water is where the THPS that we are interested in is found. In our superhero quest, nothing that is attached to the solid particles that we filter out counts. Thus, we can precisely determine the amount of THPS present in our clear potion from the findings obtained after filtering. 

In conclusion, although testing turbid water for THPS residuals may seem difficult, we can get over the hazy obstacles with the help of the OMMICA blank test and a few superhuman manoeuvres. To guarantee that your results cut through the turbidity fog and provide you with accurate and trustworthy information for your chemical adventures, never forget that the sample blank, dilution, and filtration are your go-to tools! 


Sonali Dhiwar 

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