FIA-Sub methyl bule spectrophotometry was adopted in the paper.When temperature and reagent proportion was determined,the influence of peristaltic pump rate,the length of reaction tube and injection volume were studie...FIA-Sub methyl bule spectrophotometry was adopted in the paper.When temperature and reagent proportion was determined,the influence of peristaltic pump rate,the length of reaction tube and injection volume were studied to optimize the analytical conditions.The result showed that the linear range,the limit of and detection the accuracy were 1～25mg/L,1mg/L,and 3.56%(RSD),respectively.The method was successfully applied to the measurement of sulfide in leather wastewater.展开更多
In the presence of CTMAB,the reaction of pheylflurone with Ge(Ⅳ) to form a red complex is studied by FIA Spectrophotometry.The method was applied to the determination of germanium in green tea and satisfactory result...In the presence of CTMAB,the reaction of pheylflurone with Ge(Ⅳ) to form a red complex is studied by FIA Spectrophotometry.The method was applied to the determination of germanium in green tea and satisfactory results were obtained.The wavelength of maximum absorbance of this complex was at 333nm,detection limit was 0.1 μg/ml and Beer’s law was obeyed in the concentration range of 0μg/ml～10μg/ml.The mean recovery is 94.02% and relative standard deviation is less than 0.54%.展开更多
文摘FIA-Sub methyl bule spectrophotometry was adopted in the paper.When temperature and reagent proportion was determined,the influence of peristaltic pump rate,the length of reaction tube and injection volume were studied to optimize the analytical conditions.The result showed that the linear range,the limit of and detection the accuracy were 1～25mg/L,1mg/L,and 3.56%(RSD),respectively.The method was successfully applied to the measurement of sulfide in leather wastewater.
文摘In the presence of CTMAB,the reaction of pheylflurone with Ge(Ⅳ) to form a red complex is studied by FIA Spectrophotometry.The method was applied to the determination of germanium in green tea and satisfactory results were obtained.The wavelength of maximum absorbance of this complex was at 333nm,detection limit was 0.1 μg/ml and Beer’s law was obeyed in the concentration range of 0μg/ml～10μg/ml.The mean recovery is 94.02% and relative standard deviation is less than 0.54%.
