What is the threshold odor number (TON) for the follow- ing sample?
The first detectable odor occurred when the 20 mL sample was diluted to 200 mL (180 mL of odor-free water was added to the 20 mL sample)
The first detectable odor occurred when the 20 mL sample was diluted to 200 mL (180 mL of odor-free water was added to the 20 mL sample)
1 Answer
Jun 21, 2017
The TON is 10.
Explanation:
The threshold odour number is the dilution factor at which the odour is just detectable.
The dilution factor is given by
#color(blue)(bar(ul(|color(white)(a/a) "DF" = V_text(f)/V_text(i) color(white)(a/a)|)))" "#
where
In the example, you have diluted 20 mL to 200 mL.
∴
and
#"TON" =10#