Study the Effect of Some Factors on the Determination of Mercury by Cold Vapor Technique (CV-AAS)

Authors

  • Osama Abdo Tishreen University
  • Abd Al-Aziz Asaad Tishreen University
  • Giaath Abbass Tishreen University

Abstract

In this research, the optimal conditions for some factors affecting the determination of mercury concentrations by Cold Vapor Atomic Absorption Spectrometry method were studied. These factors included: delay time, in addition to both: Reductant concentration and Linearity of Calibration Curve. The delay time was studied within the range (30 - 60 S), while the concentrations of the reductant were studied within the range (1 – 12 % w/v), As for the linearity of the calibration curve, the atomic absorbance was measured within the range of mercury concentrations (5 - 100 µg/L). The results related to the delay time showed that the highest atomic absorbance obtained for mercury was at a time of (60 S), while the highest atomic absorbance was recorded for the reductant was at the concentration (5 % w/v). On the other hand, with regard to linearity of calibration curve, the results showed the existence of a very strong linear relationship between the concentration of mercury and the atomic absorbance within the studied range, where the value of the correlation coefficient reached the value of (R2 = 0.997). As for the detection limit under the previous optimal conditions, it recorded a value of (0.012 µg/l), which is the minimum concentration of mercury that can be measured by the atomic absorption method using the cold steam technique.

 

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Published

2024-11-02

How to Cite

1.
عبدو ا, عبد العزيز اسعد, غياث عباس. Study the Effect of Some Factors on the Determination of Mercury by Cold Vapor Technique (CV-AAS). TUJ-BA [Internet]. 2024Nov.2 [cited 2024Dec.21];46(3):133-42. Available from: https://journal.tishreen.edu.sy/index.php/bassnc/article/view/17277

Issue

Vol. 46 No. 3 (2024): Tishreen University Journal of Research and Scientific Studies - Basic Sciences Series

Section

Articles

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