Preserving brine shrimp?

Sadly a beloved sea monkey colony of mine died the other day because of a horrible heatwave here in the UK.

I saw some people preserve their dead tadpole shrimp as wet specimens, so I was wondering if the same could be done for brine shrimp? i know they’re tiny fellas (probs only about 0.5-1cm each) but maybe they could be suspended in hand-sanitizer so they don’t look depressed at the bottom of a vial?

I’ve never preserved wet specimens but I did really like and miss this colony of shrimp…how would I go about this?