• 한국결정성장학회지
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• 제8권1호
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• pp.36-41
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• 1998

유기화합물인 alkyl sulfonate를 층상이중수산화물에 삽입시킨 화합물을 합성하였다. X-선 회절 데이터와 alkyl sulfonate의 분자의 크기를 비교하여 층간 삽입된 alkyl sulfonate의 공간배열을 확입하였다. 층간 삽입된 alkyl sulfonate의 분자 사슬이 이중수산화물의 층에 수직되며 서로 반대 방향으로 배열되어 있음을 확인하였다.

• 한국결정성장학회지
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• 제8권3호
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• pp.431-434
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• 1998

층상구조를 가진 염기성 초산구리, $Cu(OH)(CH_3COO){cdot}H_2O$를 합성하였다. 또한 음이온 치환반응을 통해서 alkyl sulfonate를 염기성 초산구리에 삽입시켰다. X-선 회절 데이터와 alkyl sulfonate의 분자의 크기를 비교하여 층간 삽입된 초산구리의 공간배열을 확인하였다.

• Journal of Pharmaceutical Investigation
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• 제8권3호
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• pp.11-15
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• 1978

The contamination concentrations of the alkyl benzene sulfonate (ABS) pollution in the Han river were investigated at 3 sites from July through september, 1977. The samples were taken on the upper, the middle, and the lower Han river and 5points of each part, respectively. The contamination concentrations of ABS pollution in the river were 0.012 p.p.m of the upper site, 0.206 p.p.m of the middle site, and 0.486 p.p.m of the lower site in average, respectively. Consequently, the contamination concentrations of ABS pollution in the Han river were the highest at the lower site, where is between second Han river bridge and Nan Ji island.

• Bulletin of the Korean Chemical Society
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• 제29권12호
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• pp.2491-2495
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• 2008

• Environmental Analysis Health and Toxicology
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• 제15권1_2호
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• pp.39-43
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• 2000

Linear alkyl sulfonates (LAS) constitute a large fraction of the surfactants used in cleaning processes in households, trade and industry Despite the industrial significance and the possible environmental impact of these compounds, the fast and inexpensive determination of LAS concentrations is still a difficult task. In this study, near infrared (NIR) spectroscopy which is a rapid spectroscopic analysis method compared with a traditional analytical method for the measurement of LAS concentration such as HPLC, GC and standard wet chemistry method. NIR spectra of LAS between 0.313 and 25.0% (w/v) in water were utilized to develop a calibration model. The best results (R ＝ 0.998, SEP ＝ 0.244% (w/v)) obtained by using partial least-squares regression with spectral data treatment and 2nd derivatization were comparable to the results (SEC ＝ 0.186% (w/v), SEP ＝ 0.206% (w/v)) obtained by using multiple linear least-squares regression (MLR). However, models based on derivative spectra have no significant advantage with MLR.

• 미생물학회지
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• 제40권2호
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• pp.139-146
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• 2004

일반 토양과 부엽토, 퇴비로부터 alkaline cellulase 생성이 우수한 균주를 분리한 후 형태적, 배양학적 및 생화학적 동정을 실시한 결과 호알칼리성 Bacillus sp. HSH-810 균주인 것으로 판명되었다. 분리균 Bacillus sp. HSH-810의 생육과 효소 활성은 $30^{\circ}C$와 pH 10.0에서 가장 높은 것으로 나타났다. 본 균주는 배지 중에 탄소원과 질소원, 무기염으로 1.0%의 CMC와 0.5%의 peptone, 0.02%의 $CaC1_2$, $CoC1_2$를 사용하였을 경우 최대의 alkaline cellulase생산성을 나타내었다. 효소의 최적 활성 pH와 온도는 각각 10.5와 $50^{\circ}C$였다. 이 효소는 pH 6.0-13.0과 $50^{\circ}C$의 온도에서 매우 안정하였다. 효소액에 계면활성제를 첨가하여 효소 활성을 측정한 결과, 효소액은 sodium-$\alpha$-olefin sulfonate (AOS)와 sodium dodecyl sulfonate (SDS), Tween 20, Tween 80에 대하여 안정성 이 높은 특징을 보였으나 0.1%의 linear alkyl-benzene sulfonate (LAS)를 첨가한 경우에는 효소 활성이 심하게 저해되었다.

• 한국염색가공학회지
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• 제26권4호
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• pp.339-346
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• 2014

To give a positive effect on dispersion behavior of high performance fibers $Vectran^{(R)}$ in water with reference to wet-laid nonwoven technology, 9 kinds of sulfonate type anionic surfactants were chosen to study. After dispersion experiment, the number and the area occupied by fibers in each sample were counted and figured to calculate the index of dispersion in conjunction with quadrat analysis. Similar tendency was observed in the results of two experiments. The sample without addition of any surfactant resulted in the most aggregated dispersion behavior. As the length of alkyl group attached to sulfonate increases, the sample shows more dispersed behavior. The sample with the surfactant having the aryl group and the longer alkyl group shows the most dispersed behavior and it can be seen with the naked eye as well.

• 한국미생물·생명공학회지
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• 제4권3호
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• pp.117-121
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• 1976

음이온계 합성세제인 ABS (alkyl benzene sulfonate)의 분해능이 우수한 균주를 자연계에서 분리하여 Pseudomonas caryophylli로 동정하였다. ABS 10 ppm을 함유한 인공폐수에서 분리균주를 배양시 ABS는 40％ 이상, BOD는 89％, COD는 71％ 감소되었으며 ABS분해능은 자연미생물군에 의한 혼합배양시의 2배 이상이었다. 분리균주에 의한 시판 합성세제의 분해율은 Hiti 46.2％, Kleenup 37.5％, No.1 29％, OK 27.8％이었다.

• KSBB Journal
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• 제8권4호
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• pp.364-369
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• 1993

The biodegradability of some anionic surfactants were investigated using biological oxygen consumption measurement at different temperatures. As test surfactants, soap, alkyl sulfate (AS), alpha olefin sulfonate (AOS), alkyl polyoxyethylene sulfate (AES), linear alkylbezene sulfonate(LAS), microbial surfactants such as sophorose lipid (sopholipid) and spiculisporic acid (S-acid), were used. The test solution were incubated at $5^{\circ}C$, $18^{\circ}C$ and $32^{\circ}C$, respectively. The comparative rates of biodegradation were in accordance with the results obtained from the surface tension measurement and methylene blue method. The results of comparative blodegradabilities of the surfactants were as follows; soap, AS>AES>AOS>LAS at $18^{\circ}C$ and $32^{\circ}C$. However, at$ 5^{\circ}C$, the biodegradation rate of soap was better than other surfactants. Considering the actual environment of the river, it was concluded that the biological oxygen consumption rate method at lower temperature was more practical than the current method such as methylene blue assay with adapted shaking flask culture at $25^{\circ}C$

• 공업화학
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• 제5권5호
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• pp.795-800
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• 1994

새로운 기능성을 갖는 sodium monoglycerol ${\alpha}$-sulfonated alkanonate류에서 소수성 부분의 알킬기의 탄소수에 따른 세정력을 비교한 결과 $C_{16}$>$C_{18}$>$C_{14}$>$C_{12}$의 순으로 나타났고, 이들 중 세정력이 가장 우수한 sodium monoglycerol ${\alpha}$-sulfonated hexadecanonate는 무공해 세정제로서 기대성이 있는바 현재 공업적으로 대량 사용하고 있는 sodium ${\alpha}$-sulfonated alkanoic acid methyl ester와 sodium alkyl benzene sulfonate를 상대 비교한 결과, 보다 우수한 세정력을 나타내며 공업적 응용성에 기대성이 크다.