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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2011.10
- 수록면
- 39 - 42 (4page)
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초록· 키워드
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This study was performed to determine the adsorption-desorption characteristics of polyhexamethyleneguanidine phosphate in three different soil types of textural classification. Adsorption and desorption studies is important for prediction their fate and generating essential information on the mobility of chemicals and their distribution in the soil, water and air of our biosphere.
The detection limit of the test substance quantified by a spectroscopic method using Eosin indicator was 0.25 ㎍/mL. The reproducibility of analytical method was confirmed by the preliminary test. The concentrations of polyhexamethyleneguanidine phosphate in aqueous solution were 1.36±0.09, 2.45±0.01, and 4.25±0.05 ㎍/mL by a spectroscopic method using Eosin indicator.
The adsorption percents of polyhexamethylenequanidine phosphate in soil were greater than 95.2% for all three test soils. The desorption percents from the adsorbed soil were less than 4.5, 4.7 and 4.7%. Therefore, the adsorption coefficients (K) were greater than 110, 111 and 116. The adsorption coefficient calculated as a function of the organic carbon content (Koc) of the test soils were greater than 9,181, 11,100, and 8,942, respectively.
Therefore, the test substance, polyhexamethylenequanidine phosphate could be concluded as medium or high adsorption (>25%) and poorly desorption (<75%) in soil media. Therefore, this chemical is likely to be retained in soil media and may not pose a risk in the aquatic environment.
The detection limit of the test substance quantified by a spectroscopic method using Eosin indicator was 0.25 ㎍/mL. The reproducibility of analytical method was confirmed by the preliminary test. The concentrations of polyhexamethyleneguanidine phosphate in aqueous solution were 1.36±0.09, 2.45±0.01, and 4.25±0.05 ㎍/mL by a spectroscopic method using Eosin indicator.
The adsorption percents of polyhexamethylenequanidine phosphate in soil were greater than 95.2% for all three test soils. The desorption percents from the adsorbed soil were less than 4.5, 4.7 and 4.7%. Therefore, the adsorption coefficients (K) were greater than 110, 111 and 116. The adsorption coefficient calculated as a function of the organic carbon content (Koc) of the test soils were greater than 9,181, 11,100, and 8,942, respectively.
Therefore, the test substance, polyhexamethylenequanidine phosphate could be concluded as medium or high adsorption (>25%) and poorly desorption (<75%) in soil media. Therefore, this chemical is likely to be retained in soil media and may not pose a risk in the aquatic environment.
목차
ABSTRACT
INTRODUCTION
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UCI(KEPA) : I410-ECN-0101-2013-539-000831699