磷的光化学分析新方法研究

Studies on the Photochemical Analysis Method of Phosphorus

中文关键词:  磷  杂多酸光化学  光化学分析

英文关键词:phosphorous  photochemistry of heteropoly acid  photochemical analysis

中文摘要:

      在0.2mol/LH₂SO₄-10%乙醇介质中及紫外光照射条件下磷钼杂多酸光还原为磷钼蓝(λ_max=780nm).据此建立了一个测定0.05～2.0μg/mL磷的光化学分析新方法,并用于试样分析.探讨了光化学反应机理.

英文摘要:

      Under the conditions of 0.2mol/L sulphuric acid -10% ethanol medium and irradiation of UV-light, molybdophosphate heteropoly acid is reduced to its heteropoly blue (λ_max=780nm) On those grounds,a new photochemical spectrophotometric method for 0.05～2.0μg/mL phosphorous has described, and applied to determining phosphorous in real samples The photochemical mechanism is also discussed.