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axian1гæ (ÖøÃûдÊÖ)
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Griess_reagent_ÅäÖÆ ÒÑÓÐ1È˲ÎÓë
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Griess reagent ÅäÖÆ 1) 0.1 M NaNO2 (MW 69) in H2O 100 mL¡Á 0.1 mol/L ¡Á 69 g/mol = 0.069 g 2) NED 0.1% N-1-napthylethylenediamine dihydrochloride in H2O 0.1 g in 100 mL H2O 3) 1% sulfanilamide in 5% H3PO4 1 g in 100 mL 85% H3PO4 ¡ú 5% H3PO4 85% ¡Á () = 5% ¡Á 100 mL () = 5.88 mL, add H2O 94.12mL ¡ú 100 mL 5% H3PO4 |
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