Chem. J. Chinese Universities ›› 1999, Vol. 20 ›› Issue (S1): 358.
• Molecular Spectroscopy • Previous Articles Next Articles
WAN Yi-Qun, GUO Lan, SHEN Ling-Xia
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Abstract:
A procedure is described for the spectrophotometric determination of Mn(Ⅱ) after extraction with molten paraffin. The complex of Mn(Ⅱ) with l-(2-pyridylazo)-2-naphthol can be extracted quantitatively into paraffin in the range of PH=8.5~10.0. After solidified paraffin is dissolved in CHC13, the absorbance is determined at 570nm. Beer's law is obeyed in the range of 0 to lOug Mn/lOml. The linear regression equation is A=0.0032+0.0486C, the relative coefficient r=0.9997.
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WAN Yi-Qun, GUO Lan, SHEN Ling-Xia. Determination of Mn(Ⅱ) Using l-(2-pyridylazo)-2-naphthol Solid Liquid Extraction Spectrophotometry[J]. Chem. J. Chinese Universities, 1999, 20(S1): 358.
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