油田污水中可溶性硫化物快速检测方法  

作　　者：武伟男 

机构地区：[1]辽宁省固体废物管理中心,辽宁沈阳110161

出　　处：《环境保护与循环经济》2014年第11期61-63,共3页environmental protection and circular economy

摘　　要：采用硫离子选择电极法快速检测油田水中硫化物,优化了操作条件,在溶液p H值大于11.5和中速搅拌(800 r/min左右)条件下,单个样品分析时间少于15 min。空气中的氧对测定结果干扰明显,通过取样时加入硫化物稳定剂方法可消除空气中氧的影响。方法的精密度小于4.0%,与碘量法相比,相对偏差小于15%,方法检测下限为0.35 mg/L。Using the rapid detection of sulfide sulfur ion selective electrode method in oilfield water, the operation con- ditions were optimized. In the solution pH value greater than 11.5 and medium stirring speed （about 800 r/min） under the conditions of single sample analysis time is less than 15 min. The oxygen in the air on determination results of interference significantly, adding sulfide stabilizer method can eliminate the influence of oxygen in the air through the sampling. The precision of the method is less than 4%, the relative deviation compared with iodine quantity method is less than 15%, and the detection limit of the method is 0.35 mg/L.

关 键 词：油田污水 硫化物 硫离子选择电极法 

分 类 号：X832[环境科学与工程—环境工程]