巩县风化煤黄腐酸及其配合物的傅里叶变换红外光谱研究

FT-IR SPECTROSCOPIC STUDIES OF FULVIC ACID FROM WEATHERED COAL AND ITS COMPLEXES

根据红外光谱的二阶导数谱理论，测定了巩县风化煤黄腐酸的傅里叶变换红外光谱，提高了表观分辨率；测定了在不同ｐＨ值下制备的黄腐酸与Ｃａ￣（２＋）、Ｂａ￣（２＋）、Ｃｕ￣（２＋）、Ｐｂ￣（２＋）和等配合物的红外光谱；讨论了腐殖酸与某些金属的成键性质。

FT-IR spectrum of hlvic acid from wheathered coal of Gong-Xian is determined usingsecond derivative spectroscopy and the spectroscopic resolution is enhanced.Moreover,FT-IRspectra of the complexes of fulvic acid with Ca￣(2+)、Ba￣(2+)、Cu￣(2+)、Pb￣(2+) and under different pHare determined and the nature of the coordination of these complexes is discussed.