Discrimination of Pakistani Fountain Pen Inks by Gas Chromatography-Mass Spectrometry (GC-MS)

Figure 1

Pie chart representation of (a) blue fountain pen ink samples Bl1, Bl2, and Bl3, (b) black fountain pen ink samples Bk1, Bk2, Bk3, and Bk4, and (c) green fountain pen ink samples Gr1, Gr2, Gr3, and Gr4.

(a)

(b)

(c)