| 摘要 |
In a method for determining the concentration of organically bound halogens present in waste water, a pre-specified amount of waste water is withdrawn and converted into a measurement sample. A spectral measurement is subsequently carried out on the measurement sample, and the result of the spectral measurement is compared with reference measurements in order to determine the concentration of organically bound halogens. The organically bound halogens are enriched in the measurement sample by extraction or adsorption. Inorganically bound halogens are removed from the measurement sample. The comparison of the spectral measurement with reference measurements is carried out using chemometric methods. An automatic measuring device 9 has a device 10 for taking an amount of sample from a flow system, a device 11 for conversion of the amount of sample into a measurement sample, a device 12 for carrying out spectral measurements on the measurement sample, and an evaluation device 13 for evaluation of the result of the spectral measurements using reference measurements. The measuring device also has a device for the automatic provision of an amount of sample and a device 11 for the automatic transfer of the measurement sample into the device 12 for carrying out the spectral measurement. The measuring device can also be used for carrying out a determination of the concentration of other spectroscopically active substances, in particular the concentrations of AOX contributors, BTEX contributors, alcohols, peroxides, metals, aldehydes, ketones, polymers, aromatics, functionalised aromatics or polyaromatics. |
