How to make a sample in ppm? (not a specific compound, only the sample)
In layman's terms, ppm is similar to percentage, i.e., how many parts of X are there in a million. By that standard, 1000 mg tea / 0.1 L is indeed 10000 ppm tea &quot;powder&quot; in water. We are assuming that everything dissolves completely.
Scientifically, or in analytical chemistry, you question is meaningless. Tea powder is mixture so one cannot talk about the ppm of tea powder. This is why you will not find this in journals or books. Concentration is specified for a single component.
Tea powder is a very complex mixture. If we have a mixture of say K2SO4 and NaCl, it is not appropriate to mention the concentration of &quot;salts&quot; in water. It will be an ambiguous statement. A better way would be expressing the concentration of K2SO4 as x% and that of NaCl as y %. It is okay in analytical chemistry to mention &quot;total carbonates&quot; or &quot;total acidity&quot;; here the species being analytes are closely related.