8、授权美国发明专利:Method For Detection BPA By Surface Enhanced Raman Spectroscopy
Method For Detection BPA By Surface Enhanced Raman Spectroscopy。授权号:S 13/376 998;授权日期2013.4.30; 专利权人:江南大学;发明人:姚卫蓉、汪仕韬、汪何雅
摘要:A detection method of bisphenol A by the surface-enhanced Raman spectroscopy is disclosed, which includes: soaking and ultrasonically 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, and 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; and 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.