- P-ISSN 1225-0163
- E-ISSN 2288-8985
수용액 중의 carbaryl을 형광분광법을 이용하여 정량하기 위한 분석방법에 대하여 연구하였다. 분석의 최적 조건을 구하기 위해서 들뜸 파장, 계면활성제의 농도, 보조계면활성제인 ethanol의 농도 및 방출 파장의 방출 세기에 대한 영향을 조사하였다. Carbaryl 용액에 계면활성제인 sodium dodecyl sulfate (SDS)을 첨가하였을 때 방출세기가 조금 증가하였으며 보조계면활성제인 ethanol을 첨가하였을 때 방출 세기가 현저히 증가함을 관찰하였다. 최적 분석 조건의 들뜸 파장, 계면활성제의 농도, 보조계면활성제인 ethanol의 농도 및 방출 파장은 각각 281 ㎚, 1.0×10<SUP>−2</SUP> ㏖/L, 20% (v/v), 349 ㎚ 이었다. 최적 분석조건에서 carbaryl의 검정곡선의 감응범위와 검출한계(3σ)는 각각 5×10<SUP>−7</SUP>에서 1.0×10<SUP>−4</SUP> ㏖/L 및 1.1×10<SUP>−8</SUP> ㏖/L이었다. 검정곡선에서 직선성이 성립하는 농도 범위에서 상관계수(S/N=3)는 0.9996이었다
A spectrofluorimetric methods has been developed for the determination of carbaryl in an aqueous solution. The effects of excitation wavelength, concentration of surfactant, concentration of ethanol as cosurfactant and emission wavelength on the fluorescence intensity were investigated to find the optimum experimental conditions to determine carbaryl. The emission intensity of the carbayl was increased with addition of sodium dodecyl sulfate (SDS) as a surfactant. The emission intensity of the carbaryl was further increased with addition of ethanol as a co-surfactant. The optimum conditions were 281 ㎚ for excitation wavelength, 1.0×10<SUP>−2</SUP> ㏖/L SDS, 20% (v/v) ethanol and 349 ㎚ for emission wavelength. Under the optimum conditions, the emission intensity increased with the carbaryl concentration in the range of 5×10<SUP>−7</SUP> to 1.0×10<SUP>−4</SUP> ㏖/L with a detection limit (3σ) of 1.1×10<SUP>−8</SUP> ㏖/L. The resulting correlation coefficient of the working curve was 0.9996.
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