The concentrations of L-serine in zymotic broth have been determined with paper chromatography and spectrophotometer.The determination conditions of L-serine have been established.

• 摘要利用“纸层析-分光光度法”对发酵液中的L-丝氨酸进行了定量测定，确定了L-丝氨酸定量测定条件。