Characterization of Nail and Human Hair Samples by LIBS and FTIR through Chemometric PCA and Clustering Methods

Identification of Wavelength Red Betel Leaves (Piper Crocatum), Green Betel Leaves (Piper Betle L.) And Black Betel Leaves (Piper Betle V.) Using Ultraviolet-Visible (UV-VIS) Method and Fourier Transform Infrared (FTIR)