Shinwa Express Vol.90 for Analysis of polystyrene peppermint using Shinwasorb.

 

Peppermint oil is made from dried mint and it is stated that over 30% of menthol should
be included in the peppermint oil for the analysis of peppermint oil under Japanese
Pharmacopoeia. It is used as flavor and taste in food additives. Also it is used as
medicine that is effective to relieve pain and itchiness. Shown below is an example of nethyl
caprylate and L-mentho using a column packed with a Shinwasorb packing material
under Japanese Pharmacopoeia.