1.In the presence of Tween-80,trace zinc associates with thiocyanate and crystal violet can form a blue-violet ionic complex,can trace zinc be determined by FIA spectrophotometry.

• 在吐温-80存在下,锌与硫氰酸盐、结晶紫生成蓝紫色离子络合物,采用流动注射分光光度法测定海水中的微量锌。