LC-MS/MS를 이용한 농산물 중 식물생장조절제 Trinexapac-ethyl과 대사산물 Trinexapac의 동시분석법 개발

BACKGROUND: Trinexapac-ethyl is a plant growth regulator (PGR) that inhibits the biosynthesis of plant growth hormone (gibberellin). It is used for the prevention of lodging, increasing yields of cereals, and reducing mowing of turf. The experiment was conducted to establish a determination method f...

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Veröffentlicht in:Hanguk hwangyeong nonghak hoeji 2015, 34(4), , pp.318-327
Hauptverfasser: 장진, Jin Jang, 김희정, Hee Jung Kim, 고아영, Ah Young Ko, 이은향, Eun Hyang Lee, 주윤지, Yun Ji Ju, 장문익, Moon Ik Chang, 이규식, Gyu Seek Rhee, 서세정, Sae Jung Suh
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Sprache:kor
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Zusammenfassung:BACKGROUND: Trinexapac-ethyl is a plant growth regulator (PGR) that inhibits the biosynthesis of plant growth hormone (gibberellin). It is used for the prevention of lodging, increasing yields of cereals, and reducing mowing of turf. The experiment was conducted to establish a determination method for trinexapac-ethyl and its metabolites trinexapac in agricultural products using LC-MS/MS.METHODS AND RESULTS: Trinexapac-ethyl and trinexapac were extracted from agricultural products with methanol/distilled water and the extract was partitioned with dichloromethane and then detected by LC-MS/MS. Limit of detection(LOD) was 0.003 mg/kg and limit of quantification(LOQ) was 0.01 mg/kg, respectively. Matrix matched calibration curves were linear over the calibration ranges (0.01-1.0 mg/L) for all the analytes into blank extract with r2 > 0.997. For validation purposes, recovery studies were carried out at three different concentration levels (LOQ, 10LOQ, 50LOQ, n=5). Recoveries of trinexapacethyl and trinexapac were within the range of 73.6-106.9%,72.7-99.2%, respectively. The relative standard deviations (RSDs) were less than 9.0%. All values were consistent with the criteria ranges requested in the CODEX guideline(CAC/GL 40, 2003).CONCLUSION: The proposed analytical method was accurate, effective and sensitive for trinexapac-ethyl and trinexapac determination and it can be used to as an official method in Korea.
ISSN:1225-3537
2233-4173
DOI:10.5338/KJEA.2015.34.4.48