【名词&注释】
有机物(organic compounds)、工业废水(industrial wastewater)、硝酸盐氮(nitrate nitrogen)、紫外分光光度法测定(determined by ultraviolet spectrophotom ...)
[判断题]紫外分光光度法测定(determined by ultraviolet spectrophotom)水中硝酸盐氮时,需在200nm和300nm波长处测定吸光度以校正硝酸盐氮值。