恒稳磁场效应对多元胶束配合物体系显色反应的影响

Effect of constant magnetic field on the color reaction of polycomponent coordination compound micelle systems

研究了恒稳磁场效应对Fe(Ⅲ ) -KSCN -RhB一阿拉伯树胶体系显色反应的影响 ,发现在一定范围内 ,恒稳磁场能显著地提高该多元配合物体系显色反应的灵敏度 .在c(H2 SO4)为 0 .0 2 0mol L ,c(KSCN)为 0 .0 96mol L ,c(RhB)为4.4× 10 - 5 mol L ,阿拉伯树胶的质量分数为 0 .0 5 %和室温条件下 ,磁感应强度为 75mT的恒稳磁场能将最大吸收波长 5 90nm处的显色灵敏度提高 46.7% ,而在波长为 610nm附近的显色灵敏度则提高 10 0 %以上 .探讨了恒稳磁场影响胶束配合物显色灵敏度的机理 .

We report the effect of magnetic field on the colorreaction of Fe(Ⅲ)-KSCN-Rhodamine B-arabic gum Polycomponent coordination compound micelle system. It is indicated that under the optimized conditions of 0.020 mol/L H 2SO 4, 0.096 mol/L KSCN, 4.4×10 -5 mol/L RhB and 0.05% arabic gum, the sensitivity of this system at maxium wavelength would increase by 46.7% after magnetization by 75 mT magnetic field, and that of other wavlengths would increase more than 100%. The mechanism of the effect of magnetic field on the color reaction was discussed.