Bromosuccinimide--Fluorescein for Sulphur cmpds.
Soln A: 0.035% soln. of N-bromosuccinimide in 1,1,1-trichloroethane
Soln B: prepare 3 mL of a 0.33% soln of fluorescein in 0.1N NaOH; make up to 100 mL with EtOH.
Spray with A; dry at room temp; spray with B
No indication of colour/fluorescence to be expected
See: J.W. Cook, J. Assoc. Off. Agr Chemists 37, 983 (1954)
NOTE !! There is a similar spray (in gl. AcOH) for lipids; see A. Popov, V. Gadeva, J. Chromatog. 16, 256 (1964) and J. Micev, A. Popov, L. Nedelceva, J. Chromatog. 24, 432 (1966)
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