• RecordNumber
    198
  • Doc. No.
    207A
  • Call. No.
    207A
  • Author

    Ensafi, A. A.,Naghizadeh, M

  • Title of Article

    Spectrophotometric reaction rate method for the determination of nitrite by catalytic action on nile blue a bromate reaction

  • Title Of Periodical
    JOURNAL OF SCIENCES ISLAMIC REPUBLIC OF IRAN
  • VolumNumber
    V.6, No.4
  • Date
    (1995)
  • Page
    P.215-220
  • Descriptors
    Catalytic,Nitrite,Spectrophotometric,Water
  • Abstract
    Kinetic method developed for the determination of ultra-trace amounts of nitrite based on its catalytic effect on the reaction between potassium bromate and Nile blue A in strongly acidic media is reported. The reaction was monitored spectrophotometrically by measuring the decrease in absorbance of Nil blue A at 645 nm by the fixed-time method. The decrease in absorbance during the first 0.5-3.0 min of the reaction is related to the concentration of nitrite in the of 0.002-0.500 MG.ml**-1. The deetection limit of 0.001 Mg.ml**-1 was achieved for the nitrite ion. The relative standard deviation for 0.0100 Mg.ml**-1 nitrite is 1.0,.Most common anions and cations did not interfere in the measurement. The procedure was successfully applied for the determination of nitrite in natural water and salt.
  • Indexer
    1376/12
  • IndexDate
    Shahsvary
  • اطلاعات ثبت
    GN112625
    • Link To Document
    https://library.iut.ac.ir/dl/search/default.aspx?Term=198&Field=0&DTC=104