一种基于射频辉光放电光谱仪的防污漆中铜元素含量的快速检测方法OACSTPCD

Using radio-frequency glow discharge spectrometer to measure the content of copper in antifouling paint,the result can be accurately determined within 1 hour.At the same time,analyzing the thickness of exudate layer,the antifouling effect of antifouling paint can be quickly determined.Compared with the traditional measurement methods using inductively coupled plasma atomic emission(ICP-OES)or atomic absorption spectrometers,the proposed method has the following advantages:no complicated and lengthy pre-treatment process is required,the test time is short,no waste liquid such as waste acid is generated,and the thickness of the seepage layer can be analyzed.It is found that the copper content of antifouling paint surface is 41.0％after the simulation experiment.With the increase of depth,the copper content decreases rapidly at first,then increases slowly and finally becomes stable.When the surface denudation reaches 5 μm depth,the copper content decreases to the lowest value of 40.5％.This depth is the thickness of the"exudate layer".The copper content increases to 40.9％and becomes stable at 23.0 μm with increasing depth.