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公开(公告)号:US20170067826A1
公开(公告)日:2017-03-09
申请号:US15123258
申请日:2015-02-18
Applicant: BioNavis Oy
Inventor: Janusz SADOWSKI , Niko GRANQVIST , Jussi TUPPURAINEN , Annika JOKINEN
IPC: G01N21/552 , G01N33/543 , G01N21/77
CPC classification number: G01N21/553 , G01N21/43 , G01N21/77 , G01N33/54373 , G01N2021/7773 , G01N2201/1217 , G01N2201/126
Abstract: A method for monitoring surface phenomena includes measuring a first surface plasmon resonance angle value (φSPR,REF) of a sample region (REG1), measuring a first critical angle value (φTIR,REF) of the sample region (REG1), causing a change of surface concentration (cM1,SRF) of an analyte (M1) at the sample region (REG1), changing the bulk composition at the sample region (REG1), measuring a second surface plasmon resonance angle value (φSPR(t)) of the sample region (REG1), measuring a second critical angle value (φTIR(t)) of the sample region (REG1), and determining an indicator value (φAUX(t)) indicative of the change of the surface concentration (cM1,SRF), wherein the indicator value (φAUX(t)) is determined from the second surface plasmon resonance angle value (φSPR(t)) by compensating an effect of the bulk composition, and wherein the magnitude (φCOMP) of said effect is determined by using the second critical angle value (φTIR(t)).
Abstract translation: 一种用于监测表面现象的方法包括: - 测量样品区域(REG1)的第一表面等离子体共振角值(φSPR,REF), - 测量样品区域(REG1)的第一临界角度值(φTIR,REF) - 引起样品区域(REG1)处的分析物(M1)的表面浓度(cM1,SRF)的变化, - 改变样品区域(REG1)处的体积组分, - 测量第二表面等离子体共振角值(φSPR (t)), - 测量样本区域(REG1)的第二临界角度值(φTIR(t)),以及 - 确定指示变化的指标值(φAUX(t)) 通过补偿本体组合物的影响,从第二表面等离子体共振角度值(φSPR(t))确定指标值(φAUX(t))的表面浓度(cM1,SRF),其中大小(φCOMP )通过使用第二临界角度值(φTIR(t))来确定。