Joan Ikoma

4 Questions 1 Answers 0 Followers

Questions related from Joan Ikoma

How do we measure out 250 mg of a 1 mg polyethylene standard if it statically adheres to the vial?

We have purchased 1 mg of a neat polyethylene standard and would like to weigh out 250 mg of it to use as a standard for our microplastics research. We are sending out our samples to a contractor...

17 October 2024 7,936 1 View

How to prepare a wastewater microplastics samples for pyr-GC/MS?

Following digestion with Fenton's reagent, what is the best method to prepare a wastewater microplastics sample for pyr-GC/MS? It has been suggested that we filter the digested sample onto a PCTE...

12 June 2023 1,563 1 View

Microplastics: Do we need to add a surfactant to our MP samples during the peroxide oxidation and enzymatic digestion process?

We are trying to quantify microplastics in effluent and are following ASTM D8333-20 to remove interfering organics in wastewater having medium to high suspended solids. The method suggests using...

09 August 2022 1,729 2 View

What is the best method to clean glassware to remove contaminants for microplastics research?

One method for microplastics analyses suggests cleaning glassware at 450 C, but we are unable to attain those temperatures. I have seen a variety of methods in different studies ranging from...

05 March 2022 3,006 5 View