usingmicrospectrophotometryJFSCA1986,31(4):1330-1340.Analysisofblue-blackinkbyhighperformanceliquidchromatographyXiao-FanShHai-PengZhangYun-JianXu(ChinaCriminalPoliceUniversity,110035,Shenyang)Abstract:Identificationofblue-blackinkaddedsuspiciouslyandtheinkformationtimeinwritingfileshasbeenaproblemthatalwaystroubledcourtscientists.Inthispaper,positionfromblue-blackinkeffectively,thenanidentificationmethodofblue-blackinkmarkaddedandtheinkformationtimewasdeveloped,theinfluenceoflight,temperatureandotherfactorsonidentificationofthetheinkformationtimewerealsoinvestigated.Themethodwithgoodreproducibility,accurateidentificationconclusions,andlessexaminationmaterialcanbeusedintheidentificationofblue-blackinkinactualcases.Keywords:peninkblue-blackinkformationtimehighperformanceliquidchromatography
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