中国科技核心期刊
美国化学文摘社(CAS)数据库
美国EBSCO学术数据库
日本科学技术振兴机构数据库(JST)
The study sets up the method to determine thiocyanate in wastewater by ferric salt colorimetric method.The influencing factors such as color-developing agent types and dosage,color-developing agent dilution solvent,acidity,stabilizer types and dosage,chromogenic reaction illumination,and time are optimized in condition tests,successfully solving the poor stability of the ferric salt colorimetric method.The precision of the method is all below 1.50 % and the recovery rate of reference materials is 98.00 %-102.83 %.