I trying to figure out how to obtain the concentration my result in mg/ml in a typical swab cleaning analysis.
Area sample peak = 100
Area standard peak = 25
Weight of standard = 25 mg
Dilution vol of standard = 100 ml
Dilution vol of swab = 15 ml
Conc. = (100/25) x (25mg/100ml) x (15ml/1 swab) = 15 mg/swab
Is this correct? I want to obtain conc. in mg/ml not mg/swab. How would I get mg/ml?