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Kinetic Spectrophotometric Determination of Trace Amounts of Sulfide

  • Barzegar, Mohsen (Department of Food Science and Technology, Tarbiat Modarres University) ;
  • Jabbari, Ali (Department of Chemistry, K. N. Toosi University) ;
  • Esmaeili, Majid (Department of Chemistry, Razi University)
  • 발행 : 2003.09.20

초록

A method for the determination of trace amount of sulfide based on the addition reaction of sulfide with methyl green at pH 7.5 and $25{\circ}C$ is described. The reaction is monitored spectrophotometrically by measuring the decrease in absorbance of the dyestuff at 637 nm by the initial rate and fixed time method. The calibration graph is linear in the range 30-1200 ppb. The theoretical limit of detection was 0.014 ppm. Seven replicate analysis of a sample solution containing 0.70 ppm sulfide gave a relative standard deviation of 1.5%. The interfering effects of various ions on sulfide determination have been reported and procedures for removal of interference have been described. The proposed method was applied successfully to the determination of sulfide in tap and wastewater samples.

키워드

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피인용 문헌

  1. A comparison between determination of trace amounts of sulfide in the presence and absence of micelle particles in natural waters (Qazvin, Iran): a kinetic spectrophotometric approach vol.187, pp.5, 2015, https://doi.org/10.1007/s10661-015-4478-6
  2. A durable solid contact sulfide sensor based on a ceric acrylohydrazide ionophore attached to polyacrylamide with a nanomolar detection limit vol.7, pp.3, 2015, https://doi.org/10.1039/C4AY02093F
  3. Simultaneous Kinetic Spectrophotometric Determination of Sulfite and Sulfide Using Partial Least Squares (PLS) Regression vol.27, pp.6, 2003, https://doi.org/10.5012/bkcs.2006.27.6.863