腐植酸
腐植痠
부식산
HUMIC ACID
2014年
1期
30-36
,共7页
Gabriela Chilom(著)%Angela S.Bruns(著)%James A.Rice(著)%张志国(译)
Gabriela Chilom(著)%Angela S.Bruns(著)%James A.Rice(著)%張誌國(譯)
Gabriela Chilom(저)%Angela S.Bruns(저)%James A.Rice(저)%장지국(역)
腐植酸%聚集行为%脂类组分%表面活性
腐植痠%聚集行為%脂類組分%錶麵活性
부식산%취집행위%지류조분%표면활성
humic acid%aggregation%lipid components%surface active
用表面张力法研究了脂类物质对几种来源不同的腐植酸在水溶液中的聚集行为。通过碱水和有机溶剂萃取相结合的方式，在每种腐植酸中分离出两种类腐植酸组分(H A1和H A2)和一种类脂类组分。H A1代表原始腐植酸中总有机碳近2/3的组分，此类物质在碱性溶液中表现出弱表面活性，仅仅能稍微降低水的表面张力。H A2代表腐植酸中几乎1/3的组分，该组分能够显著降低水的表面张力。H A2也与脂类组分紧密相关。与原始腐植酸不同的是，H A2在研究范围内都没有表现出类胶束聚集行为。H A1的聚集行为成为一种意外特性被讨论。由于腐植酸组分与起辅助作用的脂类物质之间发生相互作用引起HA2。
用錶麵張力法研究瞭脂類物質對幾種來源不同的腐植痠在水溶液中的聚集行為。通過堿水和有機溶劑萃取相結閤的方式，在每種腐植痠中分離齣兩種類腐植痠組分(H A1和H A2)和一種類脂類組分。H A1代錶原始腐植痠中總有機碳近2/3的組分，此類物質在堿性溶液中錶現齣弱錶麵活性，僅僅能稍微降低水的錶麵張力。H A2代錶腐植痠中幾乎1/3的組分，該組分能夠顯著降低水的錶麵張力。H A2也與脂類組分緊密相關。與原始腐植痠不同的是，H A2在研究範圍內都沒有錶現齣類膠束聚集行為。H A1的聚集行為成為一種意外特性被討論。由于腐植痠組分與起輔助作用的脂類物質之間髮生相互作用引起HA2。
용표면장역법연구료지류물질대궤충래원불동적부식산재수용액중적취집행위。통과감수화유궤용제췌취상결합적방식，재매충부식산중분리출량충류부식산조분(H A1화H A2)화일충류지류조분。H A1대표원시부식산중총유궤탄근2/3적조분，차류물질재감성용액중표현출약표면활성，부부능초미강저수적표면장력。H A2대표부식산중궤호1/3적조분，해조분능구현저강저수적표면장력。H A2야여지류조분긴밀상관。여원시부식산불동적시，H A2재연구범위내도몰유표현출류효속취집행위。H A1적취집행위성위일충의외특성피토론。유우부식산조분여기보조작용적지류물질지간발생상호작용인기HA2。
The role of lipid components in the aggregation of several humic acids isolated from different sources was investigated using surface tensiometry. A combination of aqueous alkaline and organic solvent extractions was used to isolate two humic-like fractions (HA1 and HA2) and one lipid-like fraction from each humic acid. Fraction HA1 repre-sents approximately two-thirds of the total organic carbon of the original humic acid and under alkaline conditions is a weak surfactant that lowers the surface tension of water by only a small amount. The HA2 fraction represents up to one-third of the humic acid and signiifcantly lowers the surface tension of water. It is also intimately associated with the lipid fraction. Unlike the original humic acid samples, HA2 does not show micelle-like aggregation over the concentra-tion range studied. Aggregate formation is discussed as an emergent characteristic that results from the interaction of the humic acid’s components with the lipid components serving a facilitative role.
