Affinity Water, a leader in water quality management, announces a breakthrough in water analysis with the development of a segmented flow system for the precise measurement of Total Cyanide in drinking water and natural waters. The innovative system utilizes an on-line UV digestion module and amperometric detection by Systea® for accurate and reliable results.
The World Health Organization emphasizes the importance of stringent cyanide monitoring due to its acute toxicity. Under The Water Supply (Water Quality) Regulations, the prescribed limit for total cyanide in drinking water stands at 50 ug/L, considerably lower than the WHO's short-term exposure health-based value.
To address this regulatory requirement, Affinity Water labs selected the Systea® analyser, employing the ASTM D7511-09E2 method. This approach involves UV digestion, breaking down complex cyanides into CN- ions, followed by amperometric detection for precise measurement.
A critical aspect of the method's success is the use of thiosulphate as a dechlorinating agent, ensuring accurate results even in waters disinfected using chloramination. This method boasts a working range of 0-20 ug/L and a low limit of quantification of 2.8 ug/L.
Affinity Water is committed to maintaining water quality standards and is in the process of accrediting this method under ISO 17025-DWTS, demonstrating its dedication to providing safe and high-quality drinking water to consumers.
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International Environmental Technology 33.5 :: 18 (yudu.com)