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蜂皇胎制品中游离赖氨酸用离子交换树脂分离后，先与铜离子络合，再与1-氟-2，4－二硝基苯（FDNB）反应，经后处理，用分光光度法测定。
After the free lysine is separated from the ion exchange resin in the queen bee product, it is first complexed with copper ions, and then reacted with 1-fluoro-2,4-dinitrobenzene (FDNB). After the treatment, spectrophotometry is used. Determination.