论文部分内容阅读
用反相柱色谱检测发现,经过不同时间的动物扰动堆肥堆制所获得的腐植酸是由亲水组分和疏水组分组成的,其中疏水组分大体上含有较低的带电基团,这些带电基团很可能是羧酸。在差示扫描量热法测定腐植酸的稀溶液做出的热容-温度图中发现了在约58℃时有一个转折,这表明疏水基团水合作用的增加。我们还发现了在86~90℃的温度区间内有一个热容的突增,这可能是由于“胶束”内部的疏水基团的水合作用,因为类似胶束结构的疏水核有“脱玻作用”。这表明了随着堆肥时间的增加,腐植酸疏水组分的相对含量和热转变的协同性也增加,它以热容突增的形式表现出来,这很可能是因为“胶束”大小的增加。
It was found by reversed-phase column chromatography that the humic acid obtained from composting of animal-disturbed composites at different times consisted of a hydrophilic component and a hydrophobic component, wherein the hydrophobic component generally contained lower charged groups, and these Charged groups are most likely carboxylic acids. A thermotolerance-temperature plot made with a dilute solution of humic acid by differential scanning calorimetry showed a transition at about 58 ° C, indicating an increase in hydration of hydrophobic groups. We also found that there is a sudden increase of heat capacity in the temperature range of 86-90 ℃, which may be due to the hydration of the hydrophobic groups in the “micelles” because the hydrophobic core resembling the micellar structure has “Off the glass effect ”. This indicates that as the composting time increases, the relative content of humic acid hydrophobic components and the synergism of thermal transitions also increase, which manifests as a sudden increase in heat capacity, most likely due to the “micelle” size Increase.