Apparatus
4. The following apparatus shall be used—
(a)a mixer;
(b)a 250 ml flask with ground glass joint and with a reflux condenser;
(c)a reduced pressure evaporator;
(d)micropipettes;
(e)a thin layer chromatographic apparatus with plates measuring 20x20 cm;
(f)an ultra-violet lamp (254 nm), the intensity of which should be such that a spot of 5 mg of biphenyl is visible;
(g)equipment for pulverising reagents;
(h)an oven.