摘要
利用气相分子吸收光谱原理，在原子吸收光谱仪上，用Ｚｎ灯的２０２．６ｎｍ及２１３．９ｎｍ波长测定水和废水中硫化物。采用沉淀分离法，用滤速快、易洗涤和吸附极少的混合纤维素酯滤膜快速过滤、洗涤，消除干扰离子和对紫外光产生吸收的挥发性有机物。测定结果准确、重现性好，用普通的原子吸收光谱仪进行测定，检出限可达到０．００１ｍｇ／Ｌ。此方法可快速测定水和废水中痕量直至高含量的硫化物。
Sulfides were determined by gas phase molecular absorption spectrometry with AAS,using Zn HCL at wavelength of 202.6nm or 213.9nm.The interfering ion and other volatile organics which will cause the ultraviolet light loss were depleted by filtration with mixed cellulose.The experimental results showed that the method had good precision and repeatability,and its detection limit is 0.001mg/L with general AAS.The method can be widely applied to both trace and high levels of sulfides in the samples.
出处
《宝钢技术》
CAS
1997年第4期33-36,17,共5页
Baosteel Technology
关键词
硫化物
水
废水
光谱分析
Gas phase molecular absorption spectrometry Sulfide Water Waste water Determination
