Scott/Dogma

any professional laboratory today is using the chromatographic method,
but if you want to do it at home you can get the reagents to do the older
tests.

Can you explain what chromatographic is about is layman's terms? How
is that different from gas-chromatography which I came across in more
recent studies?

doses. Kind of the opposite of heavy-metal poisoning, like recent lead
problems. FWIW, I don't worry about it, and I do think a lot about food
safety.

Could you elaborate further on the "recent lead problems"? Is that the
toy paint thingy? That seems to be a different issue from
environmental pollution.

Yes, but don't forget there are some organometallic pesticides in common
use today now, which are indeed the opposite. On the gripping hand, we

Could you explain what is organometallic pesticides? Is there such
thing as fluoride pesticide? How can I read about the different kinds
of pesticides available, pros and cons etc?

also have to contend with the fact that the pesticides used in the field
are not exactly reagent-grade and come with all kinds of other contaminants
in possibly significant amounts.

What is reagent-grade in layman's terms?

Sorry for the bother. I don't really intend to take up too much of
your time. But if you can point me in the right direction, I will much
appreciate it.

Thank you.

Julian
http://www.amazing-green-tea.com