摘要
建立了一种基于CdSe／ZnS量子点的快速、高效的检测丝裂霉素的荧光方法。pH-7．4，反应10min，CdSe／ZnS量子点的荧光随丝裂霉素浓度增加而猝灭，量子点的荧光强度与丝裂霉素的浓度呈良好的线性关系，适用于丝裂霉素浓度1．8～60μmol／L，且相关系数为0．996，丝裂霉素的检测限为0．11μmol／L，该方法相对无共存物质的干扰，并证明完全适用于丝裂霉素注射液与尿液中丝裂霉素的测定。
In this study, we developed a simple and readily implemented fluorescent method for detection of mitomycin based on the effects of CdSe/ZnS quantum dots. At pH 7. 4 and reaction time of 10 min, the fluorescence of the CdSe/ZnS quantum dots was quenched by increased concentrations of mitomycin. We used these observations to establish a linear relationship between the quenched fluorescence signal and the mitomycin concentration in the range of 1. 8 -60 μmol/L, with a detection limit of 0. 11 μmol/L, and an correlation coefficient of 0. 996. The proposed method is relatively free of interference from coexisting substances, and was shown here to be fully applicable to the detection of mitomycin in mitomycin injection and urine samples.
出处
《影像科学与光化学》
CAS
CSCD
北大核心
2016年第4期346-354,共9页
Imaging Science and Photochemistry
基金
山西省化学优势重点建设学科建设项目(912019)
教育部博士点联合基金项目(20111404110002)资助
