摘要
Abstract
The paper studied the method of determining volatile organic compounds(VOC)in interior wall coatings by gas chromatography technology.By optimizing the instrument parameters of gas chromatograph,the stability,sensitivity and separation effect of the chromatograph were in the best analysis state.Using Rtx-VGC column,24 kinds of organic compounds and internal standards were effectively separated by temperature program.Their qualitative identification and relative correction factors were calculated,the concentration of various compounds was accurately determined by internal standard quantitative method,and the detection results were labeled and recovered to verify that the method was reliable,accurate and applicable.The paper also studied the volatile organic compound content of 12 kinds of interior wall coatings sold in the market,which were tested by the above gas chromatography method,and concluded mainly from the aspects of sample preparation and pre-treatment,data processing and understanding of calculation formula.关键词
内墙涂料/气相色谱仪/内标法/挥发性有机化合物Key words
interior wall coating/gas chromatograph/internal standard method/volatile organic compound
