First ensure that the sample has been milled to pass a 0.5mm screen. Then ensure that the sample is vortexed sufficiently after step 3 and during step 4.
It is imperative that the sample is vortexed thoroughly at 2, 4 and 6 minutes during boiling. These steps aim to remove any sample from the sides of the test tube and homogenise your solution.
We suggest that you take a look at the video provided on the product page for best practice.
Was this article helpful?
That’s Great!
Thank you for your feedback
Sorry! We couldn't be helpful
Thank you for your feedback
Feedback sent
We appreciate your effort and will try to fix the article