Results The colour of LD 6 band was stronger when ethanol was used instead of lithium lactate in coloured solution. Potassuim cyanide entirely inhibited the activity of LD 6.The bands of LD 6 was getting weaker but still visible when lithium lactate was removed from coloured solution. 结果用乙醇取代显色液中的乳酸锂时,LD6显色明显增强,氰化钾可以完全抑制LD6活性;去除显色液中的乳酸锂时,LD6显色减弱,但仍然可见;