摘要
根据异烟酸－吡唑啉酮和吡啶－巴比妥酸光度法测定水中氰化物的基本原理，将二者重新组合成异烟酸－巴比妥酸体系，采用主次波长光度法测定。该法具有室温显色，显色所需时间较短，有色溶液稳定，对环境污染小，灵敏度高等优点，其最低检测限为０００１ｍｇ／Ｌ。特别适合于饮用水、生活污水、工业废水中微量氰化物的测定。通过对实际样品分析，与原方法进行比较，结果令人满意。
According to the principle of determination of cyanide in water by isonicotinic acid-pyrazolone and pyridine-barbituric acid,a new isonicotinic acid-barbituric acid system has been found and was applied to the determination by primary-secondary wavelengthes spectrophotometry.The proposed method has advantages of colour developing at room temperature and in a short time,stable colour of solution,smaller pollution,high sensitivity,etc.The detection limit of the method is 0 001 mg/L.It is suitable for analysis of drinking water,domestic sewage and industrial waste water.The method has been applied to the determination of practical samples with satisfactory results.
出处
《分析测试学报》
CAS
CSCD
1998年第6期69-71,共3页
Journal of Instrumental Analysis
关键词
异烟酸
巴比妥酸
水样
氰化物
光度法
水质监测
Primary-secondary wavelength,Isonicotinic acid,Barbituric acid,Water,Cyanide,Spectrophotometry
