Khuanjit Benyatian. (1998) Determination of trace metals by slurry-sampling electrothermal atomic absorption spectrometry after preconcentration on activated carbon. Mahidol University,:ม.ป.ท.Khuanjit Benyatian. 1998. Determination of trace metals by slurry-sampling electrothermal atomic absorption spectrometry after preconcentration on activated carbon. ม.ป.ท.:Mahidol University,;Khuanjit Benyatian. Determination of trace metals by slurry-sampling electrothermal atomic absorption spectrometry after preconcentration on activated carbon. ม.ป.ท.:Mahidol University, 1998. Print.