When the concentration of nitrote is conxerned and add the different concentration of Fructus Hippophae ethyl acid solu-tion.

• 亚硝酸盐浓度一定,而加入沙棘醋浓度不同,随时间延长,亚硝酸盐浓度逐渐降低,分解程度有明显区别。