This standard specifies the ultraviolet photometric method and cadmium column reduction method for the determination of nitrate in atmospheric precipitation. This standard applies to the determination of nitrate in atmospheric precipitation samples. This standard is divided into two parts: the first part is UV photometric method, and the second part is cadmium column reduction method. The minimum detectable concentration by ultraviolet photometry is 0.2mg/L, and the determination range is 0.4~10mg/L. The minimum detection concentration of cadmium column reduction method is 0.004mg/L, and the determination range is 0.01-0.2mg/L.
GB/T 13580.8-1992 history
1992GB/T 13580.8-1992 Determination of nitrate in the wet precipitation