Journal of Applied Biological Chemistry

The Korean Society for Applied Biological Chemistry (한국응용생명화학회)
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Establishment of analytical method of methiozolin and dissipation in golf course's green

Methiozolin의 분석법 개발 및 골프장 그린에서의 잔류소실특성

  • Jo, Hyeong-Wook (Department of plant life and environment sciences, Hankyong National University) ;
  • Hwang, Kyu-won (Department of plant life and environment sciences, Hankyong National University) ;
  • Hwang, Ki-Hwan (Moghu Research Center Ltd.) ;
  • Moon, Joon-Kwan (Department of plant life and environment sciences, Hankyong National University)
  • Received : 2016.08.29
  • Accepted : 2016.08.31
  • Published : 2016.12.31
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Abstract

Analytical methods for methiozolin in soil, water and turfgrass were established and dissipation patterns of methiozolin in soil and turfgrass were elucidated. Analysis was done using a high performance liquid chromatography with an ultra violet detector at the wavelength of 280 nm after extraction with acetone, liquid-liquid partition with dichloromethane, and a solid phase extraction purification. Limit of determination and Limit of quantitation were 1.0, 0.5, 1.0 ng, and 0.001, 0.1, 0.01 mg/kg for water, turfgrass, and soil, respectively. Recovery rates of methiozolin from soil, water, and turfgrass were ranged 87.5~111.3, 92.8~97.4, and 78.2~98.5 %, respectively. The turfgrass and soil samples were collected at 0, 1, 4, 7, 14, 30, 45, and 60 after spray on green area in golf course. Residues of methiozlolin were not translocated to lower soil layer but detected only in turfgrasses and root area of turfgrass. Half-lives of methiozolin in turfgrass were 10.7 days and 8.8 days in soil from root area.

Methiozolin의 토양, 유출수, 잔디 중 잔류 분석법 확립 및 토양과 그린잔디에서 잔류량 감소현상을 연구하였다. 잔류량은 acetone으로 추출 후, dichloromethane으로 분배하고, SPE를 이용하여 정제하여 자외선 검출기가 부착된 HPLC로 280 nm에서 검출하였다. 최소검출량과 정량한계는 유출수, 잔디, 토양에서 각각 1.0, 0.5, 1.0 ng과 0.001, 0.1, 0.01 mg/kg이었다. 분석법의 회수율은 유출수, 잔디, 토양에서 각각 87.5~111.3, 92.8~97.4, 78.2~98.5 %로 methiozolin 잔류분석에 적합하였다. 골프 코스 그린에 약제 처리 후 0, 1, 4, 7, 14, 30, 45, 60일차에 토양과 잔디시료를 채취하여 분석한 결과, methiozolin 잔류량은 하부 토양으로 이동현상이 관찰되지 않았고, 잔디와 잔디 근권토양에 존재하였다. 잔디와 토양 중 반감기는 각각 10.7일과 8.8일로 확인되었다.

Keywords

References

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