| 摘要: |
| 以绘画纸、白卡纸和坐标纸为衬底，采用丝网印刷银油墨，制备了高效的表面增强拉曼散射（SERS）基底，结果表明：银薄膜/绘画纸的SERS活性最佳，其次是银薄膜/白卡纸和银薄膜/坐标纸，对结晶紫的最低检测限分别为10-8，10-7和10-7 mol·L-1.此外，在同一银薄膜/绘画纸表面随机选取10个不同位置，在特征峰913，1 179和1 620 cm-1处，强度的相对标准偏差值分别为13.2%，12.5%和10.6%，增强因子达到2.87×105，表明该基底具有较好的均匀性. |
| 关键词: 表面增强拉曼散射（SERS） 丝网印刷 银薄膜 纸 结晶紫 |
| DOI：10.3969/J.ISSN.1000-5137.2021.04.002 |
| 分类号:O647 |
| 基金项目:上海市自然科学基金（19ZR1437700）；上海师范大学一般项目（SK202138） |
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| Preparation of paper-based SERS substrates by screen printing and property research |
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WANG Kun, YU Jiawen, YAN Jia, YANG Xinjie, XIAO Guina
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College of Mathematics and Sciences, Shanghai Normal University, Shanghai 200234, China
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| Abstract: |
| An efficient surface enhanced Raman scattering(SERS)substrate was prepared by screen printing silver ink on drawing paper, white card paper and coordinate paper. The results showed that silver film/drawing paper represented the best SERS activity, followed by silver film/white card paper and silver film/coordinate paper. The minimum detection limits for crystal violet were 10-8, 10-7 and 10-7 mol·L-1, respectively. In addition, ten different positions were randomly selected on the same silver film/drawing paper surface, and the relative standard deviation values of the peak intensitiesat 913, 1 179 and 1 620 cm-1 were 13.2%, 12.5% and 10.6%, respectively, which indicated outstanding uniformity. |
| Key words: surface enhanced Raman scattering(SERS) screen printing silver film paper crystal violet |
