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Chang-ho Han,So-young Jung,Bu-Chuhl Choi,Si-Jung Kim,Jae-hoon Cha,In-sook Hwang 한국분석과학회 2021 학술대회논문집 Vol.2021 No.11
The purpose of this study was to analyze the content level of methanol, formaldehyde, fluorescent bleaching agents, methylisothiazolinone, and cloromethylisothiazolinone on 29 commercial wet wipes for food restaurants. Use for personal hygiene items is very emerging due to outbreak of the COVID-19 virus and increase of single person household. Accordingly people pay attention to the safety for personal hygiene items. We analyzed 29 commercial wet wipes for food restaurants. 6 items were purchased from superstore chains, and 23 items were from on-line markets. Detection amount of methanol by head-spaced GC-FID on 29 commercial wet wipes showed ND ~ 9.3 mg/kg. 19 items were ND, and 10 items were detected from 0.6 to 9.3 mg/kg[KFDA criterion of MeOH is less than 20 mg/kg]. Those results of assay to 29 wet wipes about formaldehyde(HPLC), fluorescent bleaching agents, MIT(LC/MS/MS) and CMIT(LC/MS/MS) showed not detected(ND) and estimated safe compare with criteria of KFDA on personal hygiene items.
GC-NPD 동시분석법을 이용한 유니코나졸 잔류실태조사
김은정(Eun-Jeung Kim),최부철(Bu-Chuhl Choi),최수정(Su-Jeong Choi),홍채규(Chae-Kyu Hong),김은희(Eun-Hee Kim),최재만(Chae-Man Choi),서영호(Young-Ho Seo),황영숙,장미라(Mi-Ra Jang),황인숙(In-Sook Hwang),김무상(Moo-Sang Kim),채영주(Young-Zoo 한국식품과학회 2012 한국식품과학회지 Vol.44 No.3
2011년 6월부터 11월까지 농산물 중 GC-NPD 및 GC-MSD를 이용한 동시 다성분 분석법을 이용하여 uniconazole의 잔류실태조사를 실시하였다. 2011년 6월부터 11월까지 서울지역에 유통되고 있는 농산물 121종 총 3,939건에 대하여 잔류실태조사를 실시한 결과 49건에서 uniconazole이 검출되었다. 품목별로는 겨자채가 69.4%로 가장 많이 검출되었다. Uniconazole의 검출양은 0.09 ㎎/㎏에서 17.89 ㎎/㎏로 나타났다. 본 연구에서는 uniconazole에 대하여 GC-NPD 및 GC-MSD를 이용한 동시분석법의 가능성을 검토하였다. GC-NPD의 검출한계와 정량한계는 각각 0.006 ㎎/㎏와 0.018 ㎎/㎏이었다. 겨자채에 표준용액을 0.5, 5 ㎎/㎏ 농도로 하여 회수율을 측정한 결과 83.4%에서 101.4%까지 양호한 결과를 나타내었다. 본 연구를 통하여 동시분석법으로 보다 효율적인 검사가 가능할 것으로 기대된다. The monitoring of the uniconazole residual pesticide for agricultural products was conducted by multiclass pesticide multiresidue methods. Samples were collected from June to November, 2011. Uniconazole pesticide was detected in 49 samples from a total of 3,939 samples. The amount of uniconazole pesticide ranged from 0.09 to 17.89 ㎎/㎏ in 49 samples. This method was described for the simultaneous determination of uniconazole by gas chromatography with a nitrogen phosphorus detector (GC-NPD) and mass spectrometry (MS). The limit of detection and quantification were 0.006 and 0.018 ㎎/㎏ GC-NPD, respectively. For an evaluation of the GC-NPD method, uniconazole spiked into gyeojachae at a level of 0.5, 5 ㎎/㎏ was determined. The recoveries of uniconazole by the GC-NPD method ranged from 83.4 to 101.4%. The results indicate that the method of simultaneous analysis is applicable to uniconazole analysis.
Monitoring and Simultaneous Determination of Uniconazole by Gas Chromatography
Eun-Jeung Kim,Chae-Kyu Hong,Chae-Man Choi,Eun-Hee Kim,Su-Jeong Choi,Young-Sook Hwang,Mi-Ra Jang,Young-Ho Seo,Bu-chuhl Choi,Tae-Rang Kim,In-Sook Hwang,Moo-Sang Kim,Young-Zoo Chae 한국농약과학회 2011 한국농약과학회 학술발표대회 논문집 Vol.2011 No.11