塞曼原子吸收光谱法测定固定污染源废气中的汞  

Determination of Mercury in Stationary Source Emission by Zeeman Atomic Absorption Technique

作　　者：宋祖华[1] 高蓓蕾[2] 张迪生[1] 马光军[1] 谢馨[1] 武中林[1] 欧阳夏骏[1] 

机构地区：[1]南京市环境监测中心站,江苏南京210013 [2]江苏省环境监测中心,江苏南京210036

出　　处：《环境监测管理与技术》2017年第1期47-49,共3页The Administration and Technique of Environmental Monitoring

基　　金：江苏省环保科研"江苏省钢铁行业汞排放水平及总量研究"基金资助项目(2014022)

摘　　要：用PMS 30B型汞采样器采集固定污染源废气,再用塞曼原子吸收汞分析仪测定样品中的汞,高、低浓度汞标准样品测定结果均在标准范围内,相对误差分别为0和4.3%。汞吸收管对高、低浓度含汞废气的穿透效率表明,当废气汞质量浓度达到mg/m3级别时,穿透率仅为1.3%。用该方法测定稳定工况固定污染源废气中的汞,6次测定结果的RSD为5.9%,方法检出限为1.04 ng,当采样体积为20 L时,检出限为0.05μg/m3。实际监测表明,钢铁企业、燃煤电厂、垃圾焚烧厂废气中汞为0.07μg/m3~1 031μg/m3。Mercury in stationary source emission was collected by PMS 30B sampler and determined by Zee-man atomic absorption mercury analyzer. The determination results of mercury standard samples with high and low concentrations were both within the scopes of the standard values, the relative error was 0 and 4.3% respec-tively. The penetration efficiency test on mercury absorption tube showed that when the mercury concentration reached mg/m^3 level, the penetration rate was only 1.3%. Mercury in exhaust gas of stationary source was de-termined by this method, and the RSD was 5.9% in 6 results. When the sampling volume was 20 L, the detec-tion limit was about 0. 05 μg/m^3. Mercury emission load from steel company, coal-fired power plant and waste incineration plant ranged from 0. 07 μg/m^3 -1 031 μg/m^3 according to practical determination.

关 键 词：汞 原子吸收法 固定污染源 废气 

分 类 号：O657.31[理学—分析化学]