Concentration of Nicotine vs. Quantity

[tonyorion]

After almost 5 months of vaping and freeing myself of the curse of 1.5 packs/day of Marlboro reds for over 35 years, I have begun to notice certain trends and patterns in my vaping habits that may be different to others.

My concerns were about the level of nicotine that I was injesting. A Marlboro Red has about 1.2 mg of nicotine/cigarette which would have meant an approximate consumption of 36 mg nicotine/day.

Since I don't use prefilled cartos, I can easily measure how much juice I am using every day, which is about 4 ml and definitely puts me in the category of a chain vaper. If I use a 10mg nic juice, I am consuming 40 mg of nicotine/day, which does not put too far above the nicotine consumption with analogs.

Some claim that vaping only lets 30% of the nicotine into the body, but how accurate is that claim? Juice consumption is far easier to measure and control, so I cannot err by assuming 100% absorption.

Some thoughts?

Tony

 

[Shotline]

One thing that has me concerned is that I keep hearing that there is less than 100% absorption of nicotine through vaping. Yet, the New Zealand study that is often cited indicates that there is little to no nicotine in exhaled vapor.

My question is then......where does the nicotine go?

 

[orville99]

After almost 5 months of vaping and freeing myself of the curse of 1.5 packs/day of Marlboro reds for over 35 years, I have begun to notice certain trends and patterns in my vaping habits that may be different to others.

My concerns were about the level of nicotine that I was injesting. A Marlboro Red has about 1.2 mg of nicotine/cigarette which would have meant an approximate consumption of 36 mg nicotine/day.

Since I don't use prefilled cartos, I can easily measure how much juice I am using every day, which is about 4 ml and definitely puts me in the category of a chain vaper. If I use a 10mg nic juice, I am consuming 40 mg of nicotine/day, which does not put too far above the nicotine consumption with analogs.

Some claim that vaping only lets 30% of the nicotine into the body, but how accurate is that claim? Juice consumption is far easier to measure and control, so I cannot err by assuming 100% absorption.

Some thoughts?

Tony

Unfortunately, when a mfr lists the niccotine strength, they're only giving you half of the ratio. They neglect to put the denominator in. For example, 16 mg juice technically should be expressed as 16mg/dl juice. a decilitre is 1/10 of a litre and mg/dl is the standard notation used when describing a mixture of solids and fluids; a millilitre is 1/1000 of a litre (1/100 dl), so 1 ml of 16mg juice really only contains 0.16mg of niccotine. BTW, about 90% of the niccotine in an analog is destroyed by heat before it ever gets to the lips end of the cig, so that MR analog delivers only about 0.12mg/cig. If you get 90% of the niccotine from a pv (NZ Study), you're inhaling approximately 0.14 mg/e-cig

Sorry, just a rogue science class gene gone amuck

 

[tonyorion]

Not quite. Although a lot of e cig suppliers just list the mg portion and forget the denominator, many clearly list the concentration in mg/ml. 1 gram/ml would be 100% pure nicotine if nicotine had the same density as water

Here is an example:

FreedomSmokeUSA

and another:

100MG/ML Nic Liquid

 

[orville99]

Not quite. Although a lot of e cig suppliers just list the mg portion and forget the denominator, many clearly list the concentration in mg/ml. 1 gram/ml would be 100% pure nicotine if nicotine had the same density as water

Here is an example:

FreedomSmokeUSA

and another:

100MG/ML Nic Liquid

Interesting. Of course, 100mg/ml would equal 0.1 gram/ml (a gram is 1000 mg), or 10g/dl. If you then had to dilute this saturated fluid to a safe level for vaping, you'd be getting very close to the strength of a high-test pre-mixed juice.

 

[brandon555]

There's also an inherent difference between nic in juice and nic in analogs that you have to consider. Analogs contain chemicals like ammonia to deliver the nic as fast as possible wheras e juice doesn't.

Also I believe that when you vape most of the nic is absorbed in the mouth.... so I'm sure there are also variables that affect oral absorption like pH levels and what not.

 

[orville99]

There's also an inherent difference between nic in juice and nic in analogs that you have to consider. Analogs contain chemicals like ammonia to deliver the nic as fast as possible wheras e juice doesn't.

Also I believe that when you vape most of the nic is absorbed in the mouth.... so I'm sure there are also variables that affect oral absorption like pH levels and what not.

Quite true. The point of all this is that unless the juice suppliers accurately indicate the strength in mg per something, the buyer has no way of knowing how to compare one supplier with another. For example, I just received a shipment of 18mg juice from strictly ej. They consider this level "medium". I just finished a bottle of ejuice from another supplier with 16mg, and they considered that "high". Since I don't have any way of telling what the mg level is calibrated against, I have no way of comparing juices. the 18mg has one heck of a better kick than the 16mg, so it has to be the "per what?" that is making the difference.