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Study of Feasibility Test: FT-NIR Spectrometer for Discrimination Analysis of Agrochemical Products

농약 제품의 동일성 판별을 위한 FT-NIR 분석 사례 연구

  • Jin, Jung-Hwa (Department of Agro-food Safety, National Academy of Agriculture Science, Rural Development Administration) ;
  • Baek, Oh-Hyen (Department of Agro-food Safety, National Academy of Agriculture Science, Rural Development Administration) ;
  • Shin, Jae-Yeon (Department of Agro-food Safety, National Academy of Agriculture Science, Rural Development Administration) ;
  • Ha, Huen-Young (Department of Agro-food Safety, National Academy of Agriculture Science, Rural Development Administration) ;
  • Choi, Dal-Soon (Rural Development Administration) ;
  • Park, Sung-Eun (Department of Agro-food Safety, National Academy of Agriculture Science, Rural Development Administration) ;
  • lhm, Yangbin (Department of Agro-food Safety, National Academy of Agriculture Science, Rural Development Administration) ;
  • Hong, Jin-Whan (Department of Agro-food Safety, National Academy of Agriculture Science, Rural Development Administration)
  • 진정화 (농촌진흥청 농산물안전성부) ;
  • 백오현 (농촌진흥청 농산물안전성부) ;
  • 신재연 (농촌진흥청 농산물안전성부) ;
  • 하헌영 (농촌진흥청 농산물안전성부) ;
  • 최달순 (농촌진흥청 기획조정관실) ;
  • 박성은 (농촌진흥청 농산물안전성부) ;
  • 임양빈 (농촌진흥청 농산물안전성부) ;
  • 홍진환 (농촌진흥청 농산물안전성부)
  • Received : 2015.08.31
  • Accepted : 2015.09.18
  • Published : 2015.09.30

Abstract

This study has been conducted to verify the applicability of FT-NIR (Fourier Transform Near Infrared) to prove coidentity between market agrochemical products and registered prescriptions. The spectrum correlations were investigated on 83 registered samples and there market products, 23 products which had same formulation and active ingredients and 68 products which had different active ingredients. In 83 samples/products, the primary differentiated spectrum correlation values were 95.86~100%, which mean that all samples qualified over 95% threshold. In 23 products which had same active ingredients and formulations, correlation values were 29.09~99.83%. 3 products over 99.0% were proved to have same active/inert ingredients and formulations although they're from different manufacturers. The rest products except the 3 items were under 95%. In 68 products had different active ingredients, correlation values varied from 2.00% to 93.70%. Higher correlation is supposed to come from similarity of inert ingredients despite different active ingredients. They can be decided to unqualify under 95% threshold. So applicability of FT-NIR has been verified on qualitative distinction of coidentity between registered market agrochemicals.

본 연구는 농약 제조수입회사에서 등록한 제조처방에 따라 농약을 유통판매하고 있는지의 동일성을 확인함에 있어서 FT-NIR의 적용 가능성을 알아보고자 하였다. 농약 등록용으로 제출된 시료와 유통 중인 농약 83점의 스펙트럼 간 상관관계를 조사하였다. 그리고 유효성분과 제형이 동일한 유통농약 23점의 스펙트럼 간 상관관계를 조사하였다. 또한, 유효성분이 다른 유통농약 68점의 스펙트럼 간 상관관계도 조사하였다. 등록용으로 제출된 시료와 유통 중인 농약 83점의 1차 미분 스펙트럼 간 상관관계 값은 95.86~100%로 나타났다. 상관관계 값 한계치를 Standard Deviation of Population에서 주로 적용하는 95%에는 모두 적합으로 판정될 수 있을 것이다. 한편, 농약의 유효성분과 제형은 동일한 유통농약 23점의 1차 미분 스펙트럼 간 상관관계 값은 29.09~99.83%로 나타났다. 99.0%이상 높이 나온 3점은 제조사는 다르지만 유효성분과 제형 및 사용된 부자재까지 같은 농약임을 확인할 수 있었다. 3점을 제외한 나머지는 95% 미만으로 나타났다. 농약의 유효성분이 다른 68점의 스펙트럼 간 상관관계 값이 2.00~93.70%까지 다양하게 나왔다. 상관관계 값이 93.70%처럼 높게 나타난 것은 농약의 유효성분은 다르지만 사용된 부자재의 유사성에 기인한 것으로 추정된다. 동일성 판별 상관관계 값의 한계치 95%를 적용하면 모두 부적합으로 판정될 수 있을 것이다. 따라서 본 결과를 토대로 등록 농약과 유통 중인 농약의 동일성을 정성적으로 판별하는데 있어서 FT-NIR의 활용 가능성이 확인되었다.

Keywords

References

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  1. Study of Coidentity Verification of Pesticide Products and Active Ingredients through FT-NIR and FT-IR vol.22, pp.4, 2018, https://doi.org/10.7585/kjps.2018.22.4.337