Provision of High Nicotine Aerosol

Abstract

A method and a device to provide an aerosol to a user from an aerosol liquid heated in an aerosol generating device comprising an electrical heater are described. The aerosol liquid includes at least 55 wt. % of propylene glycol, PG, glycerol, and at least 3 mg/ml of nicotine. The delivery of the aerosol is controlled by the device such that the aerosol collected mass, ACM, is at least 85 mg/25 puffs when the puffs are performed and the aerosol is collected by an analytical machine according to ISO 20768:2018.

1 . A method of delivering an aerosol from an aerosol liquid heated in an aerosol generating device comprising an electrical heater,
 wherein the aerosol liquid comprises:
 at least 55 wt. % of propylene glycol, PG; 
 glycerol; and 
 at least 3 mg/ml of nicotine; and 
 wherein the delivery of the aerosol is controlled by the device such that the aerosol collected mass, ACM, is at least 85 mg/25 puffs when the puffs are performed and the aerosol is collected by an analytical machine according to ISO 20768:2018. 
   
     
     
         2 . The method according to  claim 1 , wherein the ratio between PG and glycerol is at least 60:40. 
     
     
         3 . The method according to  claim 1 , wherein the delivery of the aerosol is controlled by the device such that the ACM is at least 90 mg/25 puffs and/or at most 220 mg/25 puffs. 
     
     
         4 . The method according to  claim 1 , wherein the aerosol liquid comprises at least 60 wt. % of PG. 
     
     
         5 . The method according to  claim 1 , wherein the aerosol liquid comprises at least 6 mg/ml of nicotine, and/or at most 59 mg/ml of nicotine. 
     
     
         6 . The method according to  claim 1 , wherein the aerosol liquid further comprises a flavour component in an amount between 1 and 25 wt. % of the aerosol liquid. 
     
     
         7 . The method according to  claim 1 , wherein the aerosol liquid comprises at least one acid. 
     
     
         8 . The method according to  claim 7 , wherein the acid-to-nicotine molar ratio is at least 0.1:1. 
     
     
         9 . The method according to  claim 1 , wherein the pH of the aerosol liquid is between 4 and 10. 
     
     
         10 . The method according to  claim 1 , wherein the aerosol generating device is an e-cigarette. 
     
     
         11 . The method according to  claim 1 , wherein the ACM is determined gravimetrically. 
     
     
         12 . The method according to  claim 1 , wherein the ACM is determined according to the formula: 
       
         
           
             
               
                 
                   A 
                   ⁢ 
                   C 
                   ⁢ 
                   M 
                 
                 = 
                 
                   m 
                   p 
                 
               
               , 
             
           
         
         wherein m is the weight of the aerosol mass collected by the analytical machine and p is the total amounts of puffs. 
       
     
     
         13 . The method according to  claim 1 , wherein the amount of the ACM is determined according to the test method specified in ISO 4387:2019. 
     
     
         14 . An aerosol generating device for delivering an aerosol from an aerosol liquid, comprising an electrical heater and configured to carry out the method according to  claim 1 . 
     
     
         15 . The method according to  claim 1 , wherein the aerosol liquid comprises at least one organic acid. 
     
     
         16 . The method according to  claim 15 , wherein the acid-to-nicotine molar ratio is at least 0.1:1. 
     
     
         17 . The method according to  claim 1 , wherein the aerosol liquid comprises one or more of benzoic acid, lactic acid, tartaric acid, malic acid, or a combination of benzoic acid, lactic acid and tartaric acid. 
     
     
         18 . The method according to  claim 17 , wherein the acid-to-nicotine molar ratio is at least 0.1:1.