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    • 2. 发明授权
    • Method for detecting BPA by surface enhanced Raman spectroscopy
    • 通过表面增强拉曼光谱法检测BPA的方法
    • US08432544B2
    • 2013-04-30
    • US13376998
    • 2011-02-15
    • Weirong YaoShitao WangHeya Wang
    • Weirong YaoShitao WangHeya Wang
    • G01J3/44C07C37/68
    • G01N21/658
    • A detection method of bisphenol A by the surface-enhanced Raman spectroscopy includes: soaking and extracting bisphenol A present in a sample with an organic solvent to form an extraction solution, adding methanol to the extraction solution to cause a polymer to precipitate from the extraction solution and leaving a filtrate behind, filtering and concentrating the filtrate, diluting the concentrated filtrate to volume with methanol, filtering the diluted filtrate through a filter with a pore size of 0.45 μm to obtain a pretreated sample; detecting bisphenol A present in the sample by Raman spectroscopy under an incident laser power of 100 to 300 mW, and a scan time of 2 to 20 seconds; mixing the pretreated sample with the colloidal gold in an appropriate ratio, followed by adjusting pH value, and then carrying out the detection of bisphenol A present in the sample by Raman spectroscopy.
    • 通过表面增强拉曼光谱法检测双酚A的方法包括:用有机溶剂浸泡提取样品中的双酚A以形成提取溶液,向提取溶液中加入甲醇使聚合物从萃取溶液中沉淀出来 滤出滤液,过滤并浓缩滤液,用甲醇稀释浓缩的滤液至体积,通过孔径为0.45μm的过滤器过滤稀释的滤液,得到预处理样品; 通过拉曼光谱法以100〜300mW的入射激光功率检测样品中存在的双酚A,扫描时间为2〜20秒; 将预处理的样品与胶体金以适当的比例混合,然后调节pH值,然后通过拉曼光谱法进行样品中存在的双酚A的检测。
    • 3. 发明申请
    • METHOD FOR DETECTING BPA BY SURFACE ENHANCED RAMAN SPECTROSCOPY
    • 通过表面增强拉曼光谱法检测双酚A的方法
    • US20120236300A1
    • 2012-09-20
    • US13376998
    • 2011-02-15
    • Weirong YaoShitao WangHeya Wang
    • Weirong YaoShitao WangHeya Wang
    • G01J3/44
    • G01N21/658
    • A detection method of bisphenol A by the surface-enhanced Raman spectroscopy includes: soaking and extracting bisphenol A present in a sample with an organic solvent to form an extraction solution, adding methanol to the extraction solution to cause a polymer to precipitate from the extraction solution and leaving a filtrate behind, filtering and concentrating the filtrate, diluting the concentrated filtrate to volume with methanol, filtering the diluted filtrate through a filter with a pore size of 0.45 μm to obtain a pretreated sample; detecting bisphenol A present in the sample by Raman spectroscopy under an incident laser power of 100 to 300 mW, and a scan time of 2 to 20 seconds; mixing the pretreated sample with the colloidal gold in an appropriate ratio, followed by adjusting pH value, and then carrying out the detection of bisphenol A present in the sample by Raman spectroscopy.
    • 通过表面增强拉曼光谱法检测双酚A的方法包括:用有机溶剂浸泡提取样品中的双酚A以形成提取溶液,向提取溶液中加入甲醇使聚合物从萃取溶液中沉淀出来 滤液滤液,过滤浓缩滤液,用甲醇稀释浓缩滤液至体积,用孔径0.45μm的过滤器过滤稀释的滤液,得到预处理样品; 通过拉曼光谱法以100〜300mW的入射激光功率检测样品中存在的双酚A,扫描时间为2〜20秒; 将预处理的样品与胶体金以适当的比例混合,然后调节pH值,然后通过拉曼光谱法进行样品中存在的双酚A的检测。