The method was applied to direct determination of nitrite in collapselake 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。
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Formed by the collapse of the Mount Mazama volcanoes approximately 6, 850 years ago, this caldera (crater) lake is located in Oregon.