determination on humic acid for compound fertilizer by potassium bichromate titrimetric method, it is convenient to application and popularity, test results are satisfaction.
采用重铬酸钾容量法测定复混肥料中腐植酸含量,试验结果满意,便于推广应用。
the method, now known as golgi staining or golgi impregnation, involves hardening of tissue in potassium bichromate and ammonia, followed by immersion in a silver nitrate solution.
the results show that the potassium bichromate plus nitric acid or glacial acetic acid has the best anti-corrosion effect.
采用硫化铵溶液进行防腐试验。结果表明, 重铬酸钾加硝酸或冰醋酸的处理方法有很好的抗腐蚀效果。
this paper discussed the optimal conditions for the determination of residual alcohol in the fermented mash for chinese highly-flavored liquor, using potassium bichromate colorimetry.