Development of HPTLC finger printing of different variety of Piper betle Linn leaf oil grown in  Tamilnadu
 
Figure 1. HPTLC Analysis of Piper betle volatile oil (Sirugamani)

 Figure 2. HPTLC Analysis of Piper betle volatile oil (Karpoori)

 
Figure 3. HPTLC Analysis of Piper betle volatile oil (Vellaikodi)

                  Figure 4. HPTLC Analysis of Standard Eugenol