直鎖アルキルベンゼンスルホン酸ナトリウム(LAS)に関する研究(第1報)相模川河口域底質中のLASについて

概要

論文の詳細を見る
The distribution of contents of sodium n-alkylbenzenesulfonate (LAS) was investigated in the sediments of the Sagami River Estuary and its adjacent sea areas to discuss the relationship between the null points of sediment and the points where LAS was detected. Further the compositions of homologous series of LAS, sodium n-decylbenzenesulfonate (C_<10>-LAS), sodium n-undecylbenzenesulfonate (C_<11>-LAS), sodium n-dodecylbenzenesulfonate (C_<12>-LAS) and sodium n-tridecylbenzenesulfonate (C_<18>-LAS), in the sediments and in the river waters were compared. The contents of LAS were determined by combined methylene blue colorimetry and infrared spectrometry, and then homologous series of LAS were determined by high-performance liquid chromatography. LAS was contained over the range of dry weight 5.5 to 17μg/g at 3 points among 10 points in the estuary, but not detected in the sea areas. The null points of sediment which were presumed from particle size distribution and from ignition loss in the estuary nearly agreed with the points where LAS was detected. In the sediments C_<12>-LAS was the most abundant among homologous series of LAS and its average percentage was 59,and C_<10>-LAS was absent. On the other hand, in the river waters C_<11>-LAS was 50% and C_<13>-LAS was not detected. These facts were considerably different from the percentage of compositions of LAS in the commercial detergent.
社団法人日本薬学会の論文
1980-08-31