169 



R0.6E4-P 



R^UTION BETWEEN NICOTINE RETENTION AND SMOKE pH 





SMOKC pH 



5-0 



%. 



5>. 



*4 

 I 



I 



70 

 ■ I i 



75 



—f- 



C/ 



-0-4 



I'/ 



-0-6 \ X). 



■^ 



^. 



-0-7 



-Oft 



-0-9 



H-O 



NICOTINE RETAINED 

 IN THE HUMAN MOUTH 

 Log Mr • L«g N» 



Source: "The Retention of Nicotine and Phenols in the H™ Mouth," by 

 British-American Tobacco Co. Ltd., R&D Estabhshment (1968) 



a-0 



