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Considering the 1.56 lbs of loose-fill activated carbon packed in the filter, its worth the while

were forced to change their packaging to remove labels indicating light and ultralight cigarettes

Chromatographic conditions There are several analytical methods available for measuring nicotine in cigarette.18-21 In the present study one of the published HPLC methods according to the laboratory condition was chosen and applied for measuring nicotine in cigarettes after some modifications.22 The HPLC system consisted of a pump (Model 600E, waters), a variable wavelength detector (Model 484, waters), a U6K injector and a recorder (Model 745B, waters)

However, they can be tricky to use, and the process can take longer