采用饱和试验法,对50名苯作业工人维生素B_1、B_2、C需要量进行了探讨.经7天预饱和期后,四个试验组和一个对照组连续36天分别给予不同剂量V_(B1)、V_(B2)、V_c.结果表明:当每人每日补充Vc200mg、V_(B2)1.5mg、V_(B1)1.0mg,其负荷尿排出量分别为试验剂量的10.8%,44.9%和29.4%,血清Vc含量为0.52mg/100ml,均比对照组产生明显跃增,经t检验,P值均<0.01.因此,加上膳食中各维生素的摄取量,苯作业工人平均每人每日V_(B1)、V_(B2)、V_c的需要量分别为2.3mg、2.1 mg、 Saturation test was used to investigate the requirements of vitamin B 1, B 2 and C in 50 benzene workers.After 7 days pre-saturation period, the four test groups and one control group were given different doses of V B1, , V B2 and Vc respectively.The results showed that urinary excretion of urinary excretion were 10.8%, 44.9% and 29.4% of the test dose when the daily doses of Vc200mg, V_ (B2) 1.5mg and V_ (B1) %, Serum Vc content of 0.52mg / 100ml, compared with the control group were significantly increased by t-test, P values ​​were <0.01, therefore, combined with dietary intake of various vitamins, benzene workers average daily per person The requirements of V_ (B1), V_ (B2) and V_c were 2.3mg, 2.1mg,