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 20×20 cm.;
(f)an ultra-violet lamp (254 nm.), the intensity of which should be such that a spot of 5 μg. of biphenyl is visible;
(g)equipment for pulversing reagents;
(h)an oven.