The LB films of two amphiphilic complexes, DODA/PW 9Mo 3O 40 and DODA/PW 6Mo 6O 40 , were prepared from 12 tungstomolybdophosphheteropolyacid with dimethyldioctadecylammonium and their properties and the structure wer...The LB films of two amphiphilic complexes, DODA/PW 9Mo 3O 40 and DODA/PW 6Mo 6O 40 , were prepared from 12 tungstomolybdophosphheteropolyacid with dimethyldioctadecylammonium and their properties and the structure were characterized by UV Vis absorption spectra, fluorescence spectra, low angle X ray diffraction(LAXD) and π A isotherms curves. The results showed that the molecular areas for each comlex are 0.56 nm 2, and all of them could form an idealized structure with a stability of the Langmuir Blodgetl films.展开更多
In alkaline conditions,Sodium doecyl sulfate and Bromide hexadecyltrimethyl-ammonium(CTMAB)-Trypan blue(TB) occur faded response to form blue ion compounds.The maximum faded wavelength at 564nm.The apparent molar abso...In alkaline conditions,Sodium doecyl sulfate and Bromide hexadecyltrimethyl-ammonium(CTMAB)-Trypan blue(TB) occur faded response to form blue ion compounds.The maximum faded wavelength at 564nm.The apparent molar absorptivities(ε) is 2.73×104 L·mol-1·cm-1.The linear ranges is 0～7.21mg/L.The concentration of Sodium doecyl sulfate in definite range obeys Beer’s law.A new spectrophotometric method for the determination of Sodium doecyl sulfate has been developed.The method was applied to determine the content of the anion surface active agent Sodium doecyl sulfate in landfill leachate with satisfactory results.展开更多
文摘The LB films of two amphiphilic complexes, DODA/PW 9Mo 3O 40 and DODA/PW 6Mo 6O 40 , were prepared from 12 tungstomolybdophosphheteropolyacid with dimethyldioctadecylammonium and their properties and the structure were characterized by UV Vis absorption spectra, fluorescence spectra, low angle X ray diffraction(LAXD) and π A isotherms curves. The results showed that the molecular areas for each comlex are 0.56 nm 2, and all of them could form an idealized structure with a stability of the Langmuir Blodgetl films.
文摘In alkaline conditions,Sodium doecyl sulfate and Bromide hexadecyltrimethyl-ammonium(CTMAB)-Trypan blue(TB) occur faded response to form blue ion compounds.The maximum faded wavelength at 564nm.The apparent molar absorptivities(ε) is 2.73×104 L·mol-1·cm-1.The linear ranges is 0～7.21mg/L.The concentration of Sodium doecyl sulfate in definite range obeys Beer’s law.A new spectrophotometric method for the determination of Sodium doecyl sulfate has been developed.The method was applied to determine the content of the anion surface active agent Sodium doecyl sulfate in landfill leachate with satisfactory results.
