CAJ | 학술논문

通过重铬酸钾法(经典法)与快速消解分光光度法(改进后的快速法)两种试验方法对不同水样化学需氧量的对比分析,确定两种方法对不同水样比对结果,最大差值7mg/L,加标回收率为93.5%～105%。改进后的快速法标准样品验证试验分析实验结果准确度与精密度在方法控制范围内。证明改进后的快速法操作简便,方法稳定,精密度与准确度较高,与经典法比对可比性好。
통과중락산갑법(경전법)여쾌속소해분광광도법(개진후적쾌속법)량충시험방법대불동수양화학수양량적대비분석,학정량충방법대불동수양비대결과,최대차치7mg/L,가표회수솔위93.5%～105%。개진후적쾌속법표준양품험증시험분석실험결과준학도여정밀도재방법공제범위내。증명개진후적쾌속법조작간편,방법은정,정밀도여준학도교고,여경전법비대가비성호。
Chemical oxygen demand (cod) in water by potassium dichromate method (classic method) with fast digestion spectrophotometry (improved rapid method) two test methods for dif erent water samples contrastive analysis of the chemical oxygen demand (cod), Determine two kinds of methods in different water samples than as a result, the biggest difference between 7 mg/L, standard addition recovery is 93.5%~105%.The improved fast method of standard sample validation test analysis results accuracy and precision in the range of control methods.Rapid prove that the improved method of simple operation, stable method, precision and accuracy is higher, with the classical method than comparable good.