Abstract
UV spectrometry was applied to the continuous monitoring of water quality, allowing the direct determination of specific components in natural waters and treated waste waters and the determination of oxidizable material in natural and waste waters. A diode-array UV detector with an auto-cleaning cell and sample line was developed. The processing of the absorption spectrum and the control of the whole system ae performed with a computer. A description and the characteristics and performance of the device are presented. Results are given for an automatic survey of waste-water quality (oxidizable material concentration) of a 300 000 eq. inhab. treatment plant.
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