Grapefruit

The retention time of N-methylcarbamates can be shortened by increasing organic solvent concentration.
Since RSpak CARB-413 is a polymer-based column, it can be used in the range of pH 2 to 12.
As organic solvent, THF and methanol as well as acetonitorile can be uesd. Different elution patterns were obtained accoding to the kind of organic solvent.

Sample : Grapefruit

 Column : RSpak CARB-413 (4.6mmID*150mm)
 Other conditions : Refer to Analysis Method of N-methyl Carbamates