4 ms·
Listing what is in a product isn't necessarily as easy as one might think. Certainly if an elemental analysis is required to ensure that the heavy metal conten
by chaxor 3y ago
Listing what is in a product isn't necessarily as easy as one might think.
Certainly if an elemental analysis is required to ensure that the heavy metal content is lower than 1 ppb, it means something like a comprehensive SEM-EDX is required for every single batch. This should be required to avoid things like not noticing the enormous addition of lead chromate into turmeric, but it does require caring a bit about quality, and caring about quality in this way won't occur in a free market economy without some checks.
The examples of this are everywhere, even in things as basic as water. If you ever want to worry yourself, learn a bit about characterization techniques for determining the amount of heavy metals or organic molecules ("forever chemicals") are in water to ppt levels. It's astounding how much different techniques will provide wildly different answers, and it's unclear which method to believe.
When you look closely enough, it can get pretty scary how little we know about what is in our products.