摘要
本文用硅胶吸附法对样品进行预处理，比较简便、快速。当调节水样 ｐＨ值为 ２左右通过 １ｃｍ×５ｃｍ的硅胶柱吸附处理，可以消除浊度．色度的影响。在水样浓度为 １．０ｍｇ／Ｌ时，其相对标准偏差为 ３．２％，加标回收率为９４～１０６％。
It is convenient and rapid to pretreat sample with silica gel adsorption.When we regulate PH of the sample to2 and let sample pass through silica gel adsorption pillar it can e-liminate the influence of turbidity and colour of water. when the sample concentration is 1.0mg\ L, its ralative standard error is 3. 2%. The recover rate was found to be 94~ 106 %. This method is suitable for pretreatment of the determination of NH3 - N in water and waste water
出处
《黑龙江环境通报》
2000年第3期65-67,共3页
Heilongjiang Environmental Journal
