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You can also make your own with sodium rhodonizate (which you can get at many chemical supply companies)
by Metacelsus 5y ago
You can also make your own with sodium rhodonizate (which you can get at many chemical supply companies)
- nate_meurer 5y agoThe LeadCheck swabs are super nice because they package the reagent in binary form in separate sealed glass capsules. As far as I know, this gives the product an indefinite shelf life. I'm still using a batch of LeadChecks that bought from Ebay fifteen years ago.