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. 2016 Jul 22;7(2):88–99. doi: 10.1016/j.jaim.2015.11.004

Table 1.

Fluorescence analysis of Samasharkara Churna

Powdered drug Visible/day light Ultra violet light
254 nm 366 nm
Powder as such Crimson to dark brown Light yellow Light yellow
Powder + conc. HCl Yellow Green Green
Powder + 10% K 2Cr 2O7 Yellow Fluorescent green Brown
Powder + 1 M NaOH Red brown Deep green Fluorescent green
Powder + AgNO3 Light yellow Yellow Yellow
Powder + conc. HNO3 Orange yellow Black Fluorescent green
Powder + conc. H2SO4 Dark brown Greenish black Black
Powder + Br2 water Light brown Fluorescent green Fluorescent green
Powder + Methanol Light brown Fluorescent green Fluorescent green
Powder + CH3COOH Light brown Yellow Yellow
Powder + NH3 Yellow Fluorescent green Yellow
Powder + I2 Light purple No colour No colour