The sponge stick method is very popular in environmental sampling. Here’s what you need to know so your sample is safe and packaged correctly.
The sponge stick allows collection without directly handling the sponge, which causes contamination of the sample.
In regards to breaking off the “stick” part of the stick sponge, here is a helpful and quick tutorial video:
It is of upmost importance that the stick has been completely removed. If it is broken at any point other than at the base of the sponge, there is increased risk of puncturing the tie-off bag, which will ultimately affect the test.