Hi all, I've done some experiments and I'm trying to work out the correct unit of my final concentration. The experiment goes thus far: I added 800 uL of a substance into a litre of my sample (800uL/L). This substance has a density of 1020 kg/m3 and is 60% w/w. I'm trying to work out the amount of substance per litre of sample. After my calculations I have arrived at a number of 490 but I will appreciate some clarification on this as well as if the correct final unit of concentration will be ug/L or mg/L. Thanks in advance.