2015 1(16)

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   Short abstract

 

Pages:

115 - 118

Language:

RU

Ref.:

4


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2015_1(16)_21.pdf

 

 

SPECTRAL DEFINITION OF CONTENT OF DISSOLVED COPPER IONS BY ELECTRIC DISCHARGE IN CAPILLARY

Medvedev R.N.1, Sodnomay A.B.2

1 Lavrentyev Institute of Hydrodynamics SB RAS, Novosibirsk, Russia
2 Novosibirsk State University, Novosibirsk, Russia


Citation:

Medvedev, R.N. and Sodnomay, A.B., (2015) Spectral definition of content of dissolved copper ions by electric discharge in capillary, Modern Science: Researches, Ideas, Results, Technologies, Iss. #1(16), PP. 115 - 118.


Keywords:

spectral analysis; capillary discharge in liquid


Abstracts:

In this work the possibility of qualitative definition of copper ions content in water is shown by spectral analysis of discharge glow during high-voltage discharge in capillary. The discharge between two liquid electrodes and between liquid electrode and tungsten wire with diameter 0,5 mm was investigated. Inner diameter of capillary was 0,5 – 0,7 mm, length was ≈ 20 mm. As analyzed liquid the solution of copper sulfate with concentration 0,00005 – 1% and fixed concentration of sodium chloride 0,02% was used. As solvent the distilled water and 40% solution of sulphuric acid were used. The temperature of discharge plasma was defined to be equal approximately 2200 K for the case of distilled water solvent and 3200 K for the case of 40% sulphuric acid solvent. It was shown that at discharge between two liquid electrodes in solution of sulphuric acid and at discharge between liquid electrode and wire’s end in distilled water the minimal limit of detection of copper ions approximately the same and equal ~ 10 mg/L. At discharge between liquid electrodes in distilled water the lower limit of detection of copper ions ~ 200 mg/L under voltages up to 10 kV.


References:

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  2. Jian Wu, Jing Yu, Jun Li, Jianping Wang, Yibin Ying. Detection of metal ions by atomic emission spectroscopy from liquid-electrode discharge plasma // Spectrochimica Acta Part B, 2007. Vol. 62, pp. 1269 - 1272.

  3. T. Cserfalvi, P. Mezeit, P. Apai. Emission studies on a glow discharge in atmospheric pressure air using water as a cathode // J. Phys. D: Appl. Phys. 1993. Vol. 26, pp. 2184-2188.

  4. Magunov A.N. Spectral pyrometry of objects with a nonuniform temperature // Technical Physics. 2010, Vol. 55, No. 7. pp. 991-995.

 

 
     

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