I do not know the exact math, but each device, coil, wattage, etc is different even adding in the wattage a user runs normally. With analogs you have to account for almost 50% of that nicotine is burnt away in combustion, so a full pack you could "Potentially" be getting 21.7mg per day, 1/2 pack is half of that at about 10 to 11mg per day, that's not accounting for the amount your body actually absorbs into your blood stream. You are also not taking into account, analog nicotine is engineered in most brands, "Crack Nicotine" basically, natural nicotine molecule is 15nanometers in size, "Crack Nicotine" is cut down to 7nanometers for more efficient absorption.
Electronic devices fall prey to these same constraints, but are a bit more efficient of nicotine density, 3mg/ml in a 30ml bottle is 90mg of natural nicotine which is absorbed half as efficiently as that of most analogs, mainly in the sinuses, mouth, and throat, not so much as in the lungs like analogs. Vapor is a bit more dense than analog smoke, or can be, sub-ohm median to high wattage for instance is really dense, not all of that dense vapor touches any tissue by the time it is exhaled, that and the size of the molecules that need to pass tissue into the blood stream is not as efficient, only the outer regions of the vapor actually touches tissues in its travels. So, "Potentially" even at 3mg/ml, you could after vaporization heating, travel across tissues, all of it, that 3mg exposure could after all is said and done be only 1.5, maybe even 1mg/ml, maybe even 0.5mg/ml, again variables like devices, coils, wattage, and the users are all different.
