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02월 19일 10시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능
제121회 대한화학회 학술발표회, 총회 및 기기전시회 안내
Analysis of Famphur in Honey by Solid-Phase Extraction and GC-MS
2018년 2월 6일 17시 09분 48초
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금 09시 : 15분
Analytical Chemistry -
Oral Presentation of Young Analytical Chemists II
, Seung Woon Myung
Department of Natural Science Chemistry, Kyonggi University, Korea
Department of Chemistry, Kyonggi University, Korea
Famphur is one of the pesticides used in bee-farming. This is a highly hazardous pesticide classified by WHO and some countries are regulating this pesticides. In this study, a method for the selective determination of famphur in four kinds of honey using solid-phase extraction (SPE) and gas chromatography-mass spectrometry (GC-MS) was established. 5 g of honey was dissolved in 10 mL of water and transferred to a C
cartridge preconditioned with ethyl acetate and water. After washing with 2 mL of purified water, and then famphur was eluted with 6 mL of ethyl acetate and determined by gas chromatograph with mass spectrometer (GC-MS). Optimization of solid-phase extraction (SPE) parameters was evaluated by the pH of the sample, the type and volume of the elution solvent. Chromatographic separation was achieved on DB-35MS column(30 m × 0.20 mm × 0.33 μm), and oven temperature was raised from 120 ℃ to 310 ℃ at a rate of 25 ℃/min, and then maintained for 2 minutes. The injection mode was the split mode (10:1), and m/z 218.0 was used as the quantitative ions in SIM mode. From the established extraction and GC-MS conditions, the limit of detection (LOD) and limit of quantitation (LOQ) in the spiked sample were 2 ng/g and 5 ng/g, respectively. Recovery studies were performed at 5 ng/g, 10 ng/g, 20 ng/g of fortification levels, and accuracy and precision in working range were 63.7-118.4 % and 1.0-27.7 RSD %, respectively. The calibration curves for the quantitative analysis were obtained the concentration range of 5~50 ng/g with correlation coefficients (R
) from 0.9883 to 0.9958. The proposed method was applied to the analysis of famphur in domestic honey samples.
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