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First, 100 ml of 1  mmol/LBi(NO3)3•5H2O  and 100 ml 1.5  mmol/L
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First, 100 ml of 1 mmol/L Bi(NO3)3•5H2O and 100 ml of 1.5  mmol/L Na2S2O3•5H2O aqueous solutions were prepared.
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First,1 mmol/L Bi(NO3)3•5H2O( 100 ml  ) and 1.5  mmol/L Na2S2O3•5H2O (100 ml )  aqueous solutions were prepared respectively.
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First, 100 ml of a 1 mmol/L  aqueous solution of Bi(NO3)3•5H2O and 100 ml of a 1.5 mmol/L aqueous solution of Na2S2O3•5H2O were prepared, respectively.
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5Â¥2013-04-10 00:24:39
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