How can maintain the pH level of Fenton's regent for digestion of organic matter from sediment samples for microplastic analysis?
Hi, Kirti. Why do we need to maintain the pH level though?
Khudrotul Nisa Indriyasari
Hii ! Khudrotul Nisa Indriyasari, thanks for paying attention
As per reviewed literature, it has been recommended to maintain the pH up to 3.00 by using concentrated sulfuric acid (Article Validation of a Method for Extracting Microplastics from Com...
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Would someone please help? I have carried out Fenton pretreatment and that has left out a lot of ferric precipitates on my filter paper. So, i have added 50 to 60 % of sulphuric acid onto my GF filters to dissolve the ferric precipitates. Then, I could see that the precipitates were dissolved immediately and then I have washed the filter paper with plenty of millipore water. But, I would like to know whether this process (less than one min of contact between filter paper and 55 % sulphuric acid solution) would affect the chemical nature of my microplastics? Observation in microscope suggests that discolouration has occurred. But I would like to know does any of you has encountered similar situation? What is your recommendation? Thank you so much.
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