"tiny amounts of" is correct and usable in written English.
You can use it whenever you want to refer to small amounts of something. For example, "He sprinkled tiny amounts of sugar on his cereal."
Add soil and tiny amounts of water.
But until last year it paid tiny amounts of taxes.
Those bulbs also contain tiny amounts of mercury.
Still, collecting tiny amounts of native mercury seems like a greater challenge than burning cinnabar ore.
Can we turn tiny amounts of waste heat into thermo-electricity?
"With space travel, you need a really big rocket to take along tiny amounts of things.
How do you find tiny amounts of toxin in food, say, or water?
(Grazing cows encounter only tiny amounts of grain, in the form of grass seeds).
Iran's heavy water reactor will be redesigned so it produces only tiny amounts of plutonium.
Most cases, like those elsewhere, involved tiny amounts of radioactive material with no weapons uses.
Would the tiny amounts of anthrax that gripped us with fear be a crude biological weapon?
