{"title":"漫反射红外光谱相对误差的浓度依赖性","authors":"Z. Krivácsy, J. Hlavay","doi":"10.1016/0584-8539(93)E0031-Q","DOIUrl":null,"url":null,"abstract":"<div><p>A mathematical model between the relative error in the Kubelka—Munk (K—M) function and the sample concentration has been determined if the K—M function is linear with the sample concentration, <em>c</em>≤ w/w%. The theoretical model has been investigated by measuring 3–5 parallels at different sample concentrations and calculating the RSD for the selected absorption bands. Quartz (<em>d</em><sub>ave</sub> = 1.3 μm) and calcite (<em>d</em><sub>ave</sub> = 3.3 μm) as analytes and KBr (<em>d</em><sub>ave</sub> = 9.9 μm) as embedding material were used. The result of the model and the experiments were in a good agreement. It has been shown that the RSD for absorption bands with small sensitivity can increase up to ±20–60%. The precision of the quantitative analysis in diffuse reflectance infrared Fourier transform spectrometry (DRIFTS) can be improved by applying more sensitive absorption bands and parallel measurements at one standard concentration</p></div>","PeriodicalId":82782,"journal":{"name":"Spectrochimica acta. Part A: Molecular spectroscopy","volume":"50 13","pages":"Pages 2197-2202"},"PeriodicalIF":0.0000,"publicationDate":"1994-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0584-8539(93)E0031-Q","citationCount":"1","resultStr":"{\"title\":\"Concentration dependence of the relative error in diffuse reflectance infrared spectrometry\",\"authors\":\"Z. Krivácsy, J. Hlavay\",\"doi\":\"10.1016/0584-8539(93)E0031-Q\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>A mathematical model between the relative error in the Kubelka—Munk (K—M) function and the sample concentration has been determined if the K—M function is linear with the sample concentration, <em>c</em>≤ w/w%. The theoretical model has been investigated by measuring 3–5 parallels at different sample concentrations and calculating the RSD for the selected absorption bands. Quartz (<em>d</em><sub>ave</sub> = 1.3 μm) and calcite (<em>d</em><sub>ave</sub> = 3.3 μm) as analytes and KBr (<em>d</em><sub>ave</sub> = 9.9 μm) as embedding material were used. The result of the model and the experiments were in a good agreement. It has been shown that the RSD for absorption bands with small sensitivity can increase up to ±20–60%. The precision of the quantitative analysis in diffuse reflectance infrared Fourier transform spectrometry (DRIFTS) can be improved by applying more sensitive absorption bands and parallel measurements at one standard concentration</p></div>\",\"PeriodicalId\":82782,\"journal\":{\"name\":\"Spectrochimica acta. Part A: Molecular spectroscopy\",\"volume\":\"50 13\",\"pages\":\"Pages 2197-2202\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1994-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0584-8539(93)E0031-Q\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Spectrochimica acta. Part A: Molecular spectroscopy\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/0584853993E0031Q\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Spectrochimica acta. Part A: Molecular spectroscopy","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0584853993E0031Q","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Concentration dependence of the relative error in diffuse reflectance infrared spectrometry
A mathematical model between the relative error in the Kubelka—Munk (K—M) function and the sample concentration has been determined if the K—M function is linear with the sample concentration, c≤ w/w%. The theoretical model has been investigated by measuring 3–5 parallels at different sample concentrations and calculating the RSD for the selected absorption bands. Quartz (dave = 1.3 μm) and calcite (dave = 3.3 μm) as analytes and KBr (dave = 9.9 μm) as embedding material were used. The result of the model and the experiments were in a good agreement. It has been shown that the RSD for absorption bands with small sensitivity can increase up to ±20–60%. The precision of the quantitative analysis in diffuse reflectance infrared Fourier transform spectrometry (DRIFTS) can be improved by applying more sensitive absorption bands and parallel measurements at one standard concentration
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
