【作者】 王云龙；

【导师】 王乃岩； 宋东明；

【作者基本信息】 南京理工大学 ， 环境工程， 2004， 硕士

【摘要】 研究了偏最小二乘法（PLS）在FTIR光谱定量方面的原理和特点。采用PLSplus／IQ定量软件和FTIR光谱仪研究了测定燃烧产物中烟雾组分的条件，相关技术及PLSplus／IQ定量软件的应用特点。研究结果表明，可以借助大气总悬浮颗粒物采样技术进行燃烧产物中烟雾组分的采集，优选的最佳采样条件可行，大大简化了样品的预处理过程，实现了烟雾组分的快速测定。建立了利用PLSplus／IQ定量软件对谱峰严重重迭的多组分体系KClO₃、KClO₄和K₂SO₄进行定量测定的方法和步骤，对建立模型的分析条件进行了优选，并对燃烧产物中的己二酸组分进行了定量测定，测定结果符合微量分析的误差要求。更多还原

【Abstract】 The principle and characteristicness of PLS (Partial Least Square) were studied in the application of FTIR for quantitative analysis. By using FTIR and the PLSplus/IQ quantitative software, the condition of determining the aerosol in combustion products, relative technology and the features of the PLSplus/IQ quantitative software were discussed. The results showed that the Total Suspended Particles collecting technology can also be used in collecting the aerosol in the combustion products, and the selected conditions were feasible, the preprocess of samples was greatly simplified, thus realized the purpose of fast menstruating of the aerosol. The mixture of three components KClO3, KClO4 and K2SO4 with strongly overlapped absorption bands were used to build models with the PLSplus/IQ quantitative software, thus the quantitative method and procedure were established, and the determinative qualifications were opted. The Apidic acid in the combustion products was quantified, the outcomes conformed to the error demand of microanalysis.更多还原