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
In the condition of pH 2.5～4.7,ethyl eosin reacts with sildenafil to form red ion association complexes.The maximum absorption wavelengths and the maximum fading wavelengths were 550 nm and 520 nm,respectively.The ap...In the condition of pH 2.5～4.7,ethyl eosin reacts with sildenafil to form red ion association complexes.The maximum absorption wavelengths and the maximum fading wavelengths were 550 nm and 520 nm,respectively.The apparent molar absorptivities（ε）were 2.09×104 and 2.44×104L·mol-1·cm-1,respectively.When the dual-wavelength overlapping absorption spectrometry was used to determine the sidenafi,their apparent molar absorptivity ε was increased to 4.57×104 L·mol-1·cm-1.The method was applied to the determination of the content of the agora sell and in human urine sildenafils with satisfactory results.展开更多
In the acid condition of pH 4.5～6.8,congo red(CR) reacts with sisomicin(SISO) to form red ion association complexes and bring to the red solution fading of gongo red.The maximum fading wavelengths were located 504nm,...In the acid condition of pH 4.5～6.8,congo red(CR) reacts with sisomicin(SISO) to form red ion association complexes and bring to the red solution fading of gongo red.The maximum fading wavelengths were located 504nm,the apparent molar absorptivities(ε) was 2.31×104 L·mol-1·cm-1.The concentration of sisomicin obeys Lombard Beer’s law in 0.10mg/L～6.72mg/L.A new spectrophotometric method for the determination of sisomicin(SISO) has been developed.The optimum reaction conditions and the chief properties of analytical chemistry were studied.The method may was applied to determine the content of the city sell sisomicin and sisomicin in Human urine liquid and Human serum.展开更多
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.
文摘In the condition of pH 2.5～4.7,ethyl eosin reacts with sildenafil to form red ion association complexes.The maximum absorption wavelengths and the maximum fading wavelengths were 550 nm and 520 nm,respectively.The apparent molar absorptivities（ε）were 2.09×104 and 2.44×104L·mol-1·cm-1,respectively.When the dual-wavelength overlapping absorption spectrometry was used to determine the sidenafi,their apparent molar absorptivity ε was increased to 4.57×104 L·mol-1·cm-1.The method was applied to the determination of the content of the agora sell and in human urine sildenafils with satisfactory results.
文摘In the acid condition of pH 4.5～6.8,congo red(CR) reacts with sisomicin(SISO) to form red ion association complexes and bring to the red solution fading of gongo red.The maximum fading wavelengths were located 504nm,the apparent molar absorptivities(ε) was 2.31×104 L·mol-1·cm-1.The concentration of sisomicin obeys Lombard Beer’s law in 0.10mg/L～6.72mg/L.A new spectrophotometric method for the determination of sisomicin(SISO) has been developed.The optimum reaction conditions and the chief properties of analytical chemistry were studied.The method may was applied to determine the content of the city sell sisomicin and sisomicin in Human urine liquid and Human serum.
