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采用初均速法考察维生素B2水溶液稳定性,求得t20℃0.9为6.94h,与经典恒温法文献值6.59h[1]相接近。而本法操作省时简便,重现性好,便于在实际工作中采用。
The stability of vitamin B2 aqueous solution was investigated by means of the average initial velocity method. The value of t20 ℃ 0.9 was 6.94h, close to that of classical thermostat method 6.59h [1]. The method of saving time and simple, reproducible, easy to use in the actual work.