The method was applied to directdetermination of nitrite in collapse lake water, fishpond water, power plant waste water and well water with satisfactory results.
应用该法直接测定煤矿塌陷湖水、鱼塘水、电厂废水和地下水中的亚硝酸根获得满意结果。
2
The proposed method is simple, convenient and highly sensitive, which can be applied to directdetermination of hydrogen peroxide in rainwater with satisfactory results.
该法具有所用仪器简单，操作方便，灵敏度高等特点，应用于雨水中微量过氧化氢的测定，结果满意。
3
Volatile ions are trapped in slightly basic or acidic absorption solutions for subsequent directdetermination by ion chromatography, voltammetry or atomic spectroscopy.