机构地区: 华南理工大学轻工与食品学院制浆造纸工程国家重点实验室
出 处: 《华南理工大学学报(自然科学版)》 2009年第10期150-154,共5页
摘 要: 针对传统化学需氧量(COD)检测方法较为繁琐的问题,文中提出了导数光谱-化学计量学方法来快速测定制浆废水COD.该方法是通过化学计量学软件,根据一组已知COD制浆废水的多波长导数光谱和所对应的COD之间的数学关系,建立校正模型;然后将未知水样的导数光谱信息输入校正模型中即可预测其COD值.该方法无需使用化学试剂,快速、准确、便捷,为制浆废水COD检测提供了一个新方法. In order to simplify the determination of chemical oxygen demand (COD) of pulping effluent using the conventional methods, a high-speed derivative spectrophotometry-chemometrics method is proposed. In this method, based on the mathematical relationship between the multi-wavelength derivative spectral signals and the known COD values of a set of pulping effluent samples, a calibration model is established using a chemometrics software. With this model, the COD value of a certain pulping effluent can be easily predicted according to the multi-wavelength derivative spectral signals. The proposed method provides a new and convenient approach to the high-accuracy COD determination of pulping effluent without using any chemical reagents.
领 域: [环境科学与工程]