天津科技大学学报
天津科技大學學報
천진과기대학학보
JOURNAL OF TIANJIN UNIVERSITY OF SCIENCE & TECHNOLOGY
2014年
2期
71-74
,共4页
邓启良%陈洋%王阳%张志俊%苏日娜%李燕丽%王硕
鄧啟良%陳洋%王暘%張誌俊%囌日娜%李燕麗%王碩
산계량%진양%왕양%장지준%소일나%리연려%왕석
间氨基苯硼酸%果糖检测%荧光传感器
間氨基苯硼痠%果糖檢測%熒光傳感器
간안기분붕산%과당검측%형광전감기
aminophenylboronic acid%detection of fructose%fluorescent sensor
以间氨基苯硼酸和间苯二胺为功能单体,过硫酸铵为引发剂,在水溶液中通过自由基聚合反应得到(间氨基苯硼酸-间苯二胺)聚合物.通过荧光光度计检测该聚合物激发波长为297,nm,发射波长为375,nm.实验证明糖类可以淬灭聚合物的荧光,其荧光猝灭程度具有果糖>甘露糖>葡萄糖>蔗糖的规律.在pH 10.0条件下,聚合物的相对荧光强度随果糖浓度的增加而降低,线性范围为10-7~10-2,mol/L,最低检测限为10-8,mol/L,可用于饮料中果糖含量的测定,具有一定的应用价值.
以間氨基苯硼痠和間苯二胺為功能單體,過硫痠銨為引髮劑,在水溶液中通過自由基聚閤反應得到(間氨基苯硼痠-間苯二胺)聚閤物.通過熒光光度計檢測該聚閤物激髮波長為297,nm,髮射波長為375,nm.實驗證明糖類可以淬滅聚閤物的熒光,其熒光猝滅程度具有果糖>甘露糖>葡萄糖>蔗糖的規律.在pH 10.0條件下,聚閤物的相對熒光彊度隨果糖濃度的增加而降低,線性範圍為10-7~10-2,mol/L,最低檢測限為10-8,mol/L,可用于飲料中果糖含量的測定,具有一定的應用價值.
이간안기분붕산화간분이알위공능단체,과류산안위인발제,재수용액중통과자유기취합반응득도(간안기분붕산-간분이알)취합물.통과형광광도계검측해취합물격발파장위297,nm,발사파장위375,nm.실험증명당류가이쉬멸취합물적형광,기형광졸멸정도구유과당>감로당>포도당>자당적규률.재pH 10.0조건하,취합물적상대형광강도수과당농도적증가이강저,선성범위위10-7~10-2,mol/L,최저검측한위10-8,mol/L,가용우음료중과당함량적측정,구유일정적응용개치.
Using aminophenylboronic acid and m-phenylenediamine as functional monomers,ammonium persulfate as initiator,aminophenylboronic acid-m-phenylenediamine polymer was synthesized through free radical polymerization reac-tion in aqueous solution. The excitation wavelength and emission wavelength are 297 nm and 375 nm,respectively. Experi-ments proved that fluorescence of the polymer can be quenched by saccharides whose efficiency is in the following order:fructose> mannose> glucose> sucrose. Under pH 10.0,the fluorescence intensity of the polymer decreased linearly with the increase of the concentration of fructose in the range of 10-7-10-2 mol/L and the detection limit was 10-8 mol/L. The feasibility of the resulted material for the detection of fructose has also been demonstrated with samples.