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Analysis of the Anionic Surfactants by Capillary Electrophoresis
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1994, v.7 no.4, pp.435-440
Jeong,
H., Kim,
S. S., Lee,
B. M., Kang,
H., Lee,
W., &
Kim,
H.
(1994). Analysis of the Anionic Surfactants by Capillary Electrophoresis. Analytical Science and Technology, 7(4), 435-440.
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Abstract
Qualitative and quantitative analysis for the anionic surfactants used in the metal washing fluid (brand names are BFA and BCA) was performed by the capillary electrophoresis. Acetonitrile and sodium benzoate were mixed with the buffer solution which controlled at pH 10. Under the 18kV applied voltage, the electropherograms have shown the theoretical plates more than <TEX>$10^4$</TEX>. Determined as the concentration at the S/N~3, the typical detection limit was ~5 ppm and the calibration curves have shown the correlation coefficients higher than ~0.99. Based on these results, it was concluded that each components were octanoate, decanoate, dodecanoate, tetradecanoate, hexadecanoate and the relative ratio was 1.0 : 1.0 : 6.5 : 2.1 : 0.8 for the BFA.
- keywords
- Capillary Electrophoresis, Surfactant
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