Abstract
Summary
A new biological application of blue tetrazolium as a measure of reducing components in particulate and vapor phase portions of cigarette smoke was studied. Quantitative comparisons of reducing material trapped with other particulate on a Cambridge filter and those present in the gas phase permitted estimation of the percentage of reducing material retained by the human respiratory tract during a smoking trial. The technique of measuring blue tetrazolium reducing materials can be utilized to assess the deposition of gas and particulate constituents of tobacco smoke in various regions of the respiratory tract.
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