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表5 不同浓度Cr(Ⅵ)溶液对荧光猝灭结果
1号
Cr(Ⅵ)溶液体积/mL
2号
H2O体积/mL
Cr(Ⅵ)溶液浓度/(mg?L?1)猝灭效果
2.502.500.15无
5.005.000.30无
7.507.500.45无
10.0010.000.60无
12.5012.500.75无
15.0015.000.90无
17.5017.501.05无
20.0020.001.20有
22.5022.501.35有
25.0025.001.50有
30.0030.001.80有
35.0035.002.10有
40.0040.002.40有
45.0045.002.70有
47.5047.502.85有