Journal of Analytical Chemistry

, Volume 65, Issue 3, pp 244–248 | Cite as

Spectrophotometric determination of total inorganic arsenic with hexamethylene ammonium-hexamethylenedithiocarbamate in nonionic triton X-100 micellar media

  • Seda Karayünlü
  • Ümit Ay


We have developed a cost-effective and sensitive spectrophotometric method for the determination of arsenic at trace level using a new reagent, hexamethylene ammonium-hexamethylenedithiocarbamate (HMA-HMDTC). Here we show that arsenic reacts with HMA-HMDTC in acidic conditions to yield the As(HMDTC)3 complex. We studied the Beer’s law at 256 nm, which showed linearity over the concentration range 0.2–1.0 µg/mL of arsenic. We have shown that molar absorptivity, Sandell’s sensitivity and the detection limit of the method are 6.06 × 104 L/mol cm, 0.0012 μg/cm2 and 0.060 μg/mL, respectively. We have applied this new method to the determination of arsenic in drinking water.


Arsenic Critical Micelle Concentration Flame Atomic Absorption Spec Trometry Atomic Fluo Rescence Spectrometry Micellar Medium 
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Copyright information

© Pleiades Publishing, Ltd. 2010

Authors and Affiliations

  • Seda Karayünlü
    • 1
  • Ümit Ay
    • 1
  1. 1.Department of ChemistryKocaeli University, Faculty of ScienceUmuttepe-Izmit/KocaeliTurkey

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