http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
05 포스터 발표 : 환경 화학 분야(PC) ; PC-07 ; HPLC-UVD를 이용한 근대에서의 아세타미프리드 분석
카빌 ( Humayun Kabir ),무스픽 ( Musfiqur Rahman ),팔하 ( Waziha Farha ),최정희 ( Jeong Heui Choi ),김성우 ( Sung Woo Kim ),임소정 ( So Jeong Im ),정다이 ( Da I Jung ),압두 ( Abd El Aty ),심재한 ( Jae Han Shim ) 한국환경농학회 2014 한국환경농학회 학술대회집 Vol.2014 No.-
An analytical method was developed to investigate dissipation pattern of acetamiprid in chard using high performance liquid chromatography (HPLC) coupled with ultra violet detector (UVD). Samples were extracted with acetonitrile and salt and purified through glass column due to matrix interferences. Calibration curve was linear with determination coefficient, R2> 0.999. Method was validated in triplicate with three different spiked concentration levels. Goodrecoveries was found and ranging from 91.19-97.64% with relative standard deviation, RSD <7. The validated method was applied to the field samples which were randomly collected after 0 to 14 days post application. The rate of disappearance of acetamiprid was described as first. order kinetics with a half-life of 4.07 days.
04 포스터 발표 : 환경 화학 분야(PC) ; PC-16 : GC-μECD를 이용한 상추중 Metrafenone 잔류양상 연구
카빌 ( Md. Humayun Kabir ),임소정 ( So Jeong Im ),무스픽 ( Md. Musfiqur Rahman ),김성우 ( Sung Woo Kim ),최정희 ( Jeong Heui Choi ),압두 ( A. M. Abd El-aty ),팔하 ( Waziha Farha ),정다이 ( Da I Jung ),이영준 ( Young Jun Lee 한국환경농학회 2015 한국환경농학회 학술대회집 Vol.2015 No.-
The dissipation pattern of metrafenone in green leafy vegetables (lettuce) grown under green house condition were investigated using GC-μECD. Residues were extracted using acetone and samples were taken out by liquid-liquid extraction. Matrix component was cleaned by SPE silica cartridge. Calibration curves were linear over the concentration ranges (0.02-5.0 mg/kg) with a determination co-efficient (r2)≥0.999. The limit of detection (LOD) and quantification (LOQ) were 0.006 and 0.02 mg/kg respectively. Recoveries at two fortification level were ranged between 78.5% and 113.3% with relative standard deviation (RSD)<9%. Residues half-life from dissipation pattern of site 1 and 2 double/triple spray was 2.3/2.2 and 4.9/5.0 days respectively. The method was effective and sensitive enough to determine the residue of metrafenone in field-incurred lettuce sample.
05 포스터 발표 : 환경 화학 분야(PC) ; HPLC-UVD를 이용한 근대 중 아족시스트로빈 분석
팔하 ( Waziha Farha ),무스픽 ( Musfiqur Rahman ),카빌 ( Humayun Kabir ),최정희 ( Jeong Heui Choi ),김성우 ( Sung Woo Kim ),임소정 ( So Jeong Im ),정다이 ( Da I Jung ),압두 ( Abd El Aty ),심재한 ( Jae Han Shim ) 한국환경농학회 2014 한국환경농학회 학술대회집 Vol.2014 No.-
A new method was developed for analysis of Azoxystrobin in chard using HPLC-UVD. Samples were extracted using acetonitrile with salting out and purified usingsolid phase extraction (SPE) procedure. Linearity was excellent with determination coefficient (R2) >0.999. Recovery at 3 different spiking levels were ranged between 83.71-109.45% with relative standard deviation <3. The method was successfully applied to the field samples, which were collected randomly at 0 to 14 days’ post application. The rate of dis-appearance of Azoxystrobin on Chard was described as 1st order kinetics with half-life of 4.95 days.
정형석 ( Hyung Suk Chung ),이한솔 ( Han Sol Lee ),무스픽 ( Musfiqur Rahman ),카빌 ( Humayun Kabir ),박병준 ( Byung-jun Park ),김장억 ( Jang-eok Kim ),심재한 ( Jae-han Shim ) 한국환경농학회 2017 한국환경농학회 학술대회집 Vol.2017 No.-
Veterinary antibiotics contaminate plants through manure, irrigation, and atmospheric interaction. The present study was conducted to estimate the half-life of three veterinary antibiotics, chlortetracycline (CTC), enrofloxacin (ENR), and sulfathiazole (STZ), in soil and experimentally explore their uptake from contaminated soil to radish roots and leaves. Samples were extracted using a modified citrate-buffered version of the quick, easy, cheap, effective, rugged, and safe “QuEChERS” method followed by liquid chromatography coupled with tandem mass spectrometric analysis (LC-MS/MS) in positive ion mode. Good linearity was observed for the three tested antibiotics in soil and plants (roots and leaves) with high determination coefficients (R2 34 ≥ 0.9922). The average recovery rates at two spiking levels with three replicates per level ranged between 77.1 and 114.8%, with a relative standard deviation (RSD) ≤ 19.9% for all tested matrices. In a batch incubation experiment (in vitro study), the half-lives of CTC, ENR, and STZ ranged from 2.0- 6.1, 2.2-4.5, and 1.1-2.2 days, respectively. Under greenhouse conditions, the half-lives of the three target antibiotics in soil with and without radishes were 2.5-6.9 and 2.7-7.4; 4.7-16.7 and 10.3-14.6; and 4.4-4.9 and 2.5-2.8 days, respectively. Trace amounts of the target antibiotics (CTC, ENR, and STZ) were taken up from soil via roots and entered leaves of radishes. The concentration of CTC was lower than 2.73%, ENR was 0.08-3.90%, and less than 1.64% STZ was absorbed. In conclusion, the concentrations of the tested antibiotics decreased with time and consequently lower residues were observed in radishes. The rapid degradation of the tested antibiotics in the present study probably might have a little impact on soil microorganisms, fauna, and plants.
구두발표(OC)-농업화학 및 생태,식품분야 : OC-02 ; 조리가 고추와 고춧잎 중 pyridaben의 잔류양상 변화에 미치는 영향
김성우 ( Sung Woo Kim ),최정희 ( Jeong Heui Choi ),카빌 ( Humayun Kabir ),팔하 ( Waziha Farha ),무스픽 ( Musfiqur Rahman ),압두 ( Abd El Aty ),심재한 ( Jae Han Shim ) 한국환경농학회 2014 한국환경농학회 학술대회집 Vol.2014 No.-
Peppers are very beneficial crops which include high levels of antioxidants and sufficient in polyphenol, flavonoids, and capsaicinoids. In Republic Korea, peppers have been commonly used as the seasoning for the spicy of korea foods. Pesticides are very important to protect agricultural crops from insect and led to an increase of crop productivity and improvement of crop qualities. However, they may have negative health effects on consumers because of residue properties of them in crops. so it is very essential to control pesticide residues in raw and processed food to protect consumers from health problem resulted from detected pesticide residues. Analysis of pyridaben in samples was carried out using modified original QuEChERS method and LC-MS/MS. The recovery in processed and unprocessed samples ranged from 79.9 .105.1% with relative standard deviations ≤15%. Among different processing methods, blanching after washing (74.4% at single and 82.2% at double dose) was the most effective method to reduce the residual levels of pyridaben in peppers. So, It is recommended to blanch pepper fruits and leaves after washing before eating them for assuring safety of consumers from them.
04 포스터 발표 : 환경 화학 분야(PC) ; PC-15 : GC-μECD를 이용한 상추중 Metrafenone과 Boscalid분석을 위한 QuEChERS방법 비교
임소정 ( So Jeong Im ),무스픽 ( Md. Musfiqur Rahman ),김성우 ( Sung Woo Kim ),압두 ( A. M. Abd El-aty ),최정희 ( Jeong Heui Choi ),카빌 ( Md. Humayun Kabir ),팔하 ( Waziha Farha ),정다이 ( Da I Jung ),이영준 ( Young Jun Lee 한국환경농학회 2015 한국환경농학회 학술대회집 Vol.2015 No.-
Three versions of the QuEChERS method (quick,easy, cheap, effective, rugged and safe) . the original (unbuffered), modified acetate-buffered, and citrate-buffered versions were compared for thedetermination of metrafenone and boscalid residues in lettuce via gas chromatography-micro electron capture detector (GC-μECD). Onlymodified acetate-buffered version provided acceptable and more consistent recoveries for both of the target analytes than the other versions. Matrix matched calibration curves prepared for the analytes provided good linearity over the calibration ranges with the co-efficient of determination (r2) ≥ 0.998. Limit of detection (LOD) and quantification (LOQ) were 0.003 and 0.01 mg/kg for both of the analytes. Method was validated in triplicate at two fortification level and recovery of modified acetate buffered version was ranges between 77.0 and 88.1% with relative standard deviation (RSD) < 5 for the quantified analytes. The developed method was applied to the field incurred lettuce sample where half-life of metrafenone and boscalid were found 2.6 and 2.9 days respectively for double doses and 3.4 and 3.6 days respectively for triple doses.
04 포스터 발표 : 환경 화학 분야(PC) ; PC-14 : LC-MS/MS를 이용한 돼지, 닭고기, 계란중 Phorate와 대사체의 분석법 개발
무스픽 ( Md. Musfiqur Rahman ),김성우 ( Sung Woo Kim ),최정희 ( Jeong Heui Choi ),이영준 ( Young Jun Lee ),압두 ( A. M. Abd El-aty ),팔하 ( Waziha Farha ),정다이 ( Da I Jung ),카빌 ( Md. Humayun Kabir ),임소정 ( So Jeong Im 한국환경농학회 2015 한국환경농학회 학술대회집 Vol.2015 No.-
An analytical method was validated for phorate and its five metabolites (phoratesulfone, phoratesulfoxide, phorateoxon, phorateoxonsulfone, and phorateoxonsulfoxide) in pork, chicken, and egg using LC-MS/MS. The method was validated following MFDS (ministry of food and drug safety, Republic of Korea) official method developed for beef and milk. Extraction was carried out following QuEChERS using acidified acetonitrile and salt and purification was conducted via dSPE using primary secondary amine (PSA) and C18 sorbent. Calibration curve in matrix was linear with determination coefficient (r2) ≥ 0.995 for all of the analyte in three target matrices. Limit of detection (LOD) and quantification (LOQ) were 0.001 and 0.004 mg/kg for all of the matrices. Recovery was performed at three fortification level resulted acceptable values ranging from 74.22 and 119.89% with relative standard deviation (RSD)<6%. The developed method can be applied for routine analysis of phorate and its metabolites in different animal origin.