Which of the following methods can be used to differentiate red ballpoint pen inks?
A) IR spectroscopy
B) HPLC-UV
C) TLC
D) all of the above

Question

Quizplus · Accepted Answer

All of the methods listed, IR spectroscopy, HPLC-UV, and TLC, can be used to differentiate red ballpoint pen inks based on their chemical compositions and the different ways these compositions interact with the analytical techniques.

Which of the Following Methods Can Be Used to Differentiate