Study on Adsorption of Vitamin M on Silver Colloid with SERS surface enhancement Raman spectroscopy 利用SERS表面增强拉曼光谱技术对维生素M在银胶颗粒表面吸附行为的研究
Taking Dong Jujube as experimental material, the weight loss rate, the decomposing rate, the containment change of vitamin C of fruit are studied under high voltage static electric field ( HVEF) with 20kV/ m, 60kV/ m, and 100kV/ m. 以冬枣为材料,研究了20kV/m,60kV/m和100kV/m高压静电场处理对果实质量损失率、腐烂率及果实维生素C含量变化的影响。
The experimental results show that three-dimensional heat and mass transfer exist in the process of convective drying, the surface temperature of Vitamin E soft capsule needs about 10 min to reach heat balance at 2 m/ s air velocity and 27 ℃. 实验结果表明,在使用热风对流干燥软胶囊的过程中,热质传递存在着三维的分布与变化,在风速为2m/s、温度为27℃的热风中整个维E软胶囊表面温度达到平衡约需10min。