yes. And it has.
The drug you are thinking of is cocaine as people often roll paper bills up to use as a makeshift straw while snorting/inhaling the cocaine in powder form. Your stat is also slightly wrong. American Chemical Corporation recently did a study finding that 90% of U.S Paper bills had trace amounts of cocaine residue on them.
what is left on filter paper when using filtration? it is residue
The presence of water is detected when cobalt chloride paper turns pink. Cobalt chloride is blue when dry, but turns pink when it absorbs water, making it a common indicator for moisture.
Wood, grasses, agricultural residue, recovered paper etc.
residue
Residue, or perhaps filtrate.
Simply, dirt. Or you could call it solid particulate matter
To remove sticky paper, you can try using a hairdryer on a low heat setting to warm up the adhesive, making it easier to peel off. Alternatively, you can use a vinegar and water solution to loosen the sticky residue before wiping it away with a cloth. If these methods don't work, you can also try using rubbing alcohol or a commercial adhesive remover.
Filtrate. the ones trapped by the filter paper is called the residue
Take a very fine brush, like a toothbrush and run it across the dollar onto a sheet of paper. In notime youll have a snortable amount of cocain.
It is called the filtrate. What remains on the paper is called the residue.
paper money paper money