• 농약과학회지
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• 제9권4호
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• pp.311-315
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• 2005

농약 제품의 제조기업에서는 여러 가지 제품을 연속적으로 생산하고 있으므로 품질관리를 위한 동시 또는 연속적인 제품분석의 필요성이 있다. 본 연구는 생산현장에서 신속하고 정확한 제품의 품질관리를 위하여 일정한 분석기기 조건에서 각각의 성분을 혼합하여 한번주입으로 여러 성분을 동시에 분석할 수 있는 다성분 동시분석에 관한 연구를 수행하였다. 대상농약은 iprobenfos 17%GR, isoprothiolane 12%GR, tebufenozide 20%SC를 선정하여 GLC와 HPLC를 이용하여 분석을 실시하였다. GLC를 이용한 분석에서는 iprobenfos와 isoprothiolane 등 2성분이 동시분석 가능하였으나, tebufenozide는 검출이 되지 않아 분석이 불가능하였다. HPLC를 이용한 분석에서는 iprobenfos, isoprothiolane, tebufenozide 등 3성분 모두 동시분석이 가능하였다.

• 한국유기농업학회지
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• 제21권2호
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• pp.139-155
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• 2013

The purpose of this study is to analyze the effects of abolishing the low-pesticide agricultural product certification on environmentally friendly farming. A survey was conducted to quantitatively analyze farming practices and factors that change farming practice. It was found that only 17.0% of low-pesticide fruit farmers said that they will change their farming practice into organic or pesticide-free farming. With regard to the factors of farming practice change, binomial logistic regression model was applied for the analysis. In the analysis, it was found that farmers who grow the low-pesticide agricultural product are more likely to change their farming practice into organic or pesticide-free farming, as their expected price of organic or pesticide-free products is high, their area size is small, price premium of low-pesticide agricultural product is low, the frequency of their training is high. It is necessary to enhance the direct payment system to enlarge organic and nonpesticide acreage, and pest management techniques for fruits should be developed for low-pesticide fruit farmers to change their practice into organic and nonpesticide practice. Dissemination of cultivation manual, introduction of insurance to farmers, improvement of certificate system, and advertising and marketing of environment-friendly agricultural products are useful to develop environment-friendly agriculture.

• Asian Pacific Journal of Cancer Prevention
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• 제15권22호
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• pp.9725-9730
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• 2014

Background: Sister chromatid exchange (SCE) in human peripheral blood lymphocytes is one of the most extensively studied biomarkers employed to evaluate genetic damage subsequent to pesticide exposure. Objective: To estimate the pooled levels of SCE in human peripheral blood lymphocytes among population exposed to pesticide. Materials and Methods: Meta-analysis on the association between SCE frequency and pesticide exposure was performed with STATA 10.0 software package and Review Manager 5.0.24 in this study. Results: The overall means of SCE were 7.88 [95% confidence intervals (95%CI): 6.71-9.04] for exposure group and 6.05 (95%CI: 5.13-6.95) for controls, respectively. There was statistically significant difference in the SCE frequency in human peripheral blood lymphocytes between pesticide-exposed groups and control groups, and the summary estimate of weighted mean difference was 1.69 (95%CI: 1.01-2.38). We also observed that pesticide-exposed population had significantly higher SCE frequency than control groups among smokers, nonsmokers, pesticide applicator, pesticide producer, other exposure population and Asian population in stratified analyses. Conclusions: Data indicate that the SCE frequency in human peripheral blood lymphocytes might be an indicator of early genetic esffects for pesticide-exposed populations.

• 한국동물위생학회지
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• 제28권3호
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• pp.285-294
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• 2005

This study was conducted to investigate the extraction method for the determination of organochlorine, organophosphorus and synthetic pyrethroid pesticide residues in beef fat by gas chromatography-mass selective detector(GC-MSD). Twenty one pesticide residues in fat were determined using a simple and rapid procedure based on solid- phase extraction(SPE) clean-up cartridges with octadecyl $(C_{18})-bonded$ porous silica, florisil, $10\%$ deactivated florisil. a tandem $C_{18}$ and florisil and a tandem $C_{18}$ and $10\%$ deactivated florisil. Solvent-solvent extraction using acetonitrile was not satisfied to eliminate fat interference for pesticide residue analysis by GC-MSD, and the recoveries of the method in fat ranged from 16.2 to $57.3\%$ except DDT$(83.2\%)$. The recoveries of SPE methods using a tandem $C_{18}$ and Florisil was $59.6\~123.8\%$ except fenitrothion $(135.2\%)$. the SPE method was verified the satisfactory performance of pre-treatment for pesticide residues analysis in fat by GC-MSD. The efficiency of florisil deactivated with $10\%$ water has been not proved significantly on recoveries of pesticide residues in fat.

• 한국지역사회생활과학회지
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• 제22권4호
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• pp.615-621
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• 2011

This study was conducted to evaluate of the protection efficiency in each part of developed pesticide-proof clothes by repeated washings. We investigated the effect of repeated laundering on mechanical properties of pesticide-proof clothes (not washed vs 5 times washed). We also examined pesticide infiltration rate into the pesticide-proof clothes by repeated laundering. The patches(TCL paper, surface area 50cm2)were attached to the inside of pesticide-proof clothes(head, chest, right upper-arm, right forearm, left thigh, left calf, back) which subjects had dressed in during pesticide spraying. The patches were detached from working clothes after work. For the extraction of pesticide in pesticide-proof clothes, sonication was applied for 30 min with methanol. The gas chromatography/mass spectrometry (GC/MS) was applied to identify the pesticide component. The results of this study are as follows: The force strength, water-vapour resistance and surface wetting resistance of pesticide-proof clothes decreased 5 times more in washed clothes. The concentration of pesticide was the highest in the head area of pesticide-proof clothes. In seven parts of TLC paper attached to the pesticide proof clothes, the concentration of pesticide was higher in the left thigh. The penetration part and concentration of pesticide increased as washing was repeated. Therefore the conclusion which can be drawn from this study is this: protection efficiency of pesticide-proof clothes decrease by repeated washings.

• Food Science and Biotechnology
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• 제17권3호
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• pp.547-552
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• 2008

The detection of carbamate (carbofuran, carbaryl, benfracarb, thiodicarb, and methomil) and organophosphate (diazinon, cadusafos, ethoprofos, parathion-methyl, and chlorpyrifos) pesticide residues with very low detection limits was carried out using surface plasmon resonance (SPR) based equipment. The capacity to develop a portable SPR biosensor for food safety was also investigated. The applied ligand for the immunoassays was polyclonal goat anti-rabbit immunoglobulin (IgG) peroxidase conjugate. Concentration tests using direct binding assays showed the possibility of quantitative analysis. For ligand fishing to find a proper antibody to respond to each pesticide, acetylcholinesterase (AChE), and glutathione-S-transferase (GST) were tested. The reproducibility and precision of SPR measurements were evaluated. With this approach, the limit of detection for pesticide residues was 1 ng/mL and analysis took less than 11 min. Thus, it was demonstrated that detecting multi-class pesticide residues using SPR and IgG antibodies provides enough sensitivity and speed for use in portable SPR biosensors.

• Environmental Engineering Research
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• 제13권3호
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• pp.107-111
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• 2008

Water quality contamination issues are of critical concern to human health, whilst pesticide release generated from irrigated land should be considered for protecting natural habitats and human health. This paper suggests new method for evaluation and analysis using the GIS technique based on integrated spatial modeling framework. The pesticide use on irrigated land is a subset of the larger spectrum of industrial chemicals used in modern society. The behavior of a pesticide is affected by the natural affinity of the chemical for one of four environmental compartments; solid matter, liquid, gaseous form, and biota. However, the major movements are a physical transport over the ground surface by rainfall-runoff and irrigation-runoff. The irrigated water carries out with the transporting sediments and makes contaminated water by pesticide. This paper focuses on risk impact identification and assessment using GIS technique. Also, generated data on pesticide residues on farmland and surface water through GIS simulation will be reflected to environmental research programs. Finally, this study indicates that GIS application is a beneficial tool for spatial pesticide impact analysis as well as environmental risk assessment.

• 한국환경보건학회지
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• 제19권1호
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• pp.90-93
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• 1993

Increasing Public Concern : Pesticide residue is probably one of the fastest growing problems in regard to environmental contamination. Pesticide use in agriculture in this century has produced certain benefits, including a decrease in crop waste and an increase in crop yields and food quality. However, pesticide use also creates problems of having effects on the environment and remaining in food chain. The presence of pesticide residue in food, water, and soil has aroused public concern over potential health hazards. Despite information provided by national and private level agencies suggesting that food is safe, consumer groups worldwide are demanding assurance as to the safely of agricultural products.

• 분석과학
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• 제34권1호
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• pp.1-8
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• 2021

An analytical method was developed and optimized for the quantification of a plant growth regulator, 2,6-diisopropylnaphthalene (2,6-DIPN), in agricultural products using gas chromatography-tandem mass spectrometry. The samples were extracted, partitioned, and were purified using a Florisil® cartridge. To validate the analytical method, its specificity, linearity, limit of detection (LOD) and limit of quantification (LOQ) of the instrument, LOQ of the analytical method (MLOQ), accuracy, and repeatability were considered. The method displayed excellent results during validation, and is suitable for the determination and quantification of the low residual levels of the analyte in the agricultural samples. All of the results with the optimized method were satisfactory and within the criteria ranges requested in the Codex Alimentarius Commission guidelines and the Ministry of Food and Drug Safety guidelines for pesticide residue analysis. The developed method is simple and accurate and can be used as a basis for safety management of 2,6-DIPN.

• 한국식품과학회지
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• 제32권4호
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• pp.763-771
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• 2000

1999년도 2월부터 9월까지 광주 시내 백화점 및 마트 등지에서 유통되고 있는 과채류 12종, 총 289건에 대한 88종 농약의 잔류량을 분석하였다. 289건의 과채류중 21.1%에서 잔류농약이 검출되었고, 5.2%가 잔류 농약 허용기준치를 초과하였으며, 부적합율이 높았던 과채류는 깻잎, 상추, 시금치, 치커리 등의 순으로 나타났다. 과채류에 사용빈도가 높았던 농약은 프로시미돈, 엔도설판, 빈클로졸린, 클로로피리포스, 싸이퍼메쓰린, 피리미포스메칠, 펜발러레이트, 페나리몰, 모노크로토포스 등의 순으로 나타난 반면, 허용기준을 초과한 농약성분은 프로시미돈, 빈클로졸린, 엔도설판, 피리미포스메칠, 페나리몰, 모노크로토포스 등의 순으로 나타났다. 또한 깻잎, 상추, 시금치, 딸기 및 방울토마토 등과 같은 과채류에서 안전성에 문제가 되는 프로시미돈 및 빈클로졸린 농약 등의 제거 효과를 측정하기 위해 8가지 세정 방법을 사용하였다. 이들 세정 방법을 비교한 결과 초음파 세정법이 프로시미돈 및 빈클로졸린 농약의 제거에 가장 효과적 이었다.