摘要
在环保化工行业中,由于废水多为高含盐废水,如果按照地表水、地下水的测试方法对其重金属指标进行测试,其测试结果和真实值之间存在较大的偏差。本文采用等离子发射光谱-内标法测定含高盐废水体中的镍含量,相对偏差小于0.5%;并用火焰原子吸收氘灯扣除背景法以及阳极溶出伏安法进行比较和验证,重现性良好,能够满足分析测试的要求,故等离子发射光谱-内标法适合于该类废水中镍的分析,方便、准确、可行。
Waste water from chemical industry contains high salt mostly.When heavy metals are tested in these waste water samples by the test method of surface water of groundwater,the test results possess great difference from the real values.In this paper,a plasma emission spectroscopy-internal standard method was used to determinate nickel content in waste water containing high salt.And a fl ame atomic absorption-deuterium background subtraction method and an anodic stripping voltammetry were carried out as comparison.The plasma emission spectroscopy – internal standard method has good reproducibility,the relative deviation is less than 0.5%;and the method is convenient,accurate and feasible,and it can meet the requirements of analysis.So it is suitable for the analysis of nickel in such wastewater.
出处
《现代科学仪器》
2014年第4期140-143,共4页
Modern Scientific Instruments
关键词
电感耦合等离子发射光谱法
内标
镍
高盐废水
Inductively coupled plasma emission spectrometry
Internal standard
Nickel
High salt wastewater
