镇安盆地泥炭、软褐煤中的氯仿沥青“A”及其族组分的荧光特征

FLUORESCENCE FEATURES OF CHLOROFORM BITUMEN A AND ITS FRACTTONS OF ZHENAN BASIN'S PEAT AND SOFT BROWN COAL IN WESTERN YUNNAN

对滇西镇安盆地泥炭、软褐煤中的稳定组成进行荧光分析测试并未获得满意参数,又对其中抽提物—氯仿沥青“A”及其族组分进行荧光光度机测定,得到一些新的认识.

The author has studied chloroform bitumen A and its fractions of Zhenan basin's peat and soft brown coal by means of fluor(?)nce photomtry. The max and Q(650/500) of bituminous coal's chloroform bitumen A are grcater than those of peat and soft brown coal's. this shows that the 位_(max) and Q(650/ 500) gradually became greater in calification processes, but this was not cvident when pcat developed into soft brown coal. Tt has been discovered that the first peak of fluorcscence spect rum of peat and soft brown coal's chloroform bitumen A is fortned by aramatic hydrocarbon and non-hydrocarbon; neverthless, the second and the third peaks are formed by bitumen. When stimulated with blue light, the aramatic hydrocarbon gives out green light, and the color of fluorescence changes rapidly to yellow soon after being stimulated, then yellowish orange. The fluorescence alteration in intensity at 546nm is negative and comes to zero after being stimulated for about S minutes.