Comparison of QuEChERS with Traditional Sample Preparation Methods in the Determination of Multiclass Pesticides in Soil
Само за регистроване кориснике
2019
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Background: The increased use of pesticides leads to permanent pollution of soil, and there is a need for continuous monitoring of these agrochemicals in soil. Objective: Three methods for the simultaneous determination of 12 pesticides belonging to eight chemical groups in soil samples were tested and compared based on analytical parameters. Methods: The quick, easy, cheap, effective, rugged, and safe (QuEChERS); traditional solid-liquid extraction (SLE); and Soxhlet extraction were used for soil sample preparation, while detection and quantification of pesticides were performed using gas chromatography-mass spectrometry (GC-MS). Results: The tested methods featured good sensitivity, and with the exception for carbofuran (Soxhlet method, LOD = 29 mu g/kg), for the rest of the pesticides, the studied LODs were less than 12 mu g/kg. Except for simazine and carbofuran, LODs obtained by Soxhlet extraction were lower than values obtained by other two methods, whereas QuEChERS gave lower LO...Ds than the traditional SLE method for all compounds except atrazine and acetochlor. The recoveries obtained applying QuEChERS, traditional SLE, and Soxhlet methods for multiple analyses of soil samples fortified at 10,75, and 200 mu g/kg of each pesticide were in the ranges 54-103,40-91, and 12-92%, respectively. Except for chlorothalonil, the highest recoveries were obtained by the QuEChERS method. Soxhlet was better than traditional SLE method for chlorothalonil, heptachlor, and aldrin; organophosphorus pesticides (fenitrothion and diazinon) and trifluralin, gave similar recoveries for both methods. All three methods were proven to be repeatable, with RSDs lower than 19%. Conclusions: Although all tested methods showed as satisfactory regarding most analytical parameters, QuEChERS method showed much better results in terms of confidence, indicating that traditional SLE and Soxhlet extraction still need improvements for determination of multiclass pesticides in soil samples.
Кључне речи:
pesticides / soil / pollution / methodsИзвор:
Journal of AOAC International, 2019, 102, 1, 46-51Издавач:
- AOAC Int, Gaithersburg
Финансирање / пројекти:
- Проучавање биљних патогена, артропода, корова и пестицида у циљу развоја метода биорационалне заштите биља и производње безбедне хране (RS-MESTD-Technological Development (TD or TR)-31043)
- Унапређење ремедијационих технологија и развој метода за процену ризика загађених локалитета (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-43005)
DOI: 10.5740/jaoacint.18-0296
ISSN: 1060-3271
PubMed: 30322427
WoS: 000456639600006
Scopus: 2-s2.0-85059552409
Колекције
Институција/група
FiVeRTY - JOUR AU - Đurović-Pejčev, Rada AU - Bursić, Vojislava AU - Zeremski, Tijana PY - 2019 UR - http://fiver.ifvcns.rs/handle/123456789/1932 AB - Background: The increased use of pesticides leads to permanent pollution of soil, and there is a need for continuous monitoring of these agrochemicals in soil. Objective: Three methods for the simultaneous determination of 12 pesticides belonging to eight chemical groups in soil samples were tested and compared based on analytical parameters. Methods: The quick, easy, cheap, effective, rugged, and safe (QuEChERS); traditional solid-liquid extraction (SLE); and Soxhlet extraction were used for soil sample preparation, while detection and quantification of pesticides were performed using gas chromatography-mass spectrometry (GC-MS). Results: The tested methods featured good sensitivity, and with the exception for carbofuran (Soxhlet method, LOD = 29 mu g/kg), for the rest of the pesticides, the studied LODs were less than 12 mu g/kg. Except for simazine and carbofuran, LODs obtained by Soxhlet extraction were lower than values obtained by other two methods, whereas QuEChERS gave lower LODs than the traditional SLE method for all compounds except atrazine and acetochlor. The recoveries obtained applying QuEChERS, traditional SLE, and Soxhlet methods for multiple analyses of soil samples fortified at 10,75, and 200 mu g/kg of each pesticide were in the ranges 54-103,40-91, and 12-92%, respectively. Except for chlorothalonil, the highest recoveries were obtained by the QuEChERS method. Soxhlet was better than traditional SLE method for chlorothalonil, heptachlor, and aldrin; organophosphorus pesticides (fenitrothion and diazinon) and trifluralin, gave similar recoveries for both methods. All three methods were proven to be repeatable, with RSDs lower than 19%. Conclusions: Although all tested methods showed as satisfactory regarding most analytical parameters, QuEChERS method showed much better results in terms of confidence, indicating that traditional SLE and Soxhlet extraction still need improvements for determination of multiclass pesticides in soil samples. PB - AOAC Int, Gaithersburg T2 - Journal of AOAC International T1 - Comparison of QuEChERS with Traditional Sample Preparation Methods in the Determination of Multiclass Pesticides in Soil EP - 51 IS - 1 SP - 46 VL - 102 DO - 10.5740/jaoacint.18-0296 ER -
@article{ author = "Đurović-Pejčev, Rada and Bursić, Vojislava and Zeremski, Tijana", year = "2019", abstract = "Background: The increased use of pesticides leads to permanent pollution of soil, and there is a need for continuous monitoring of these agrochemicals in soil. Objective: Three methods for the simultaneous determination of 12 pesticides belonging to eight chemical groups in soil samples were tested and compared based on analytical parameters. Methods: The quick, easy, cheap, effective, rugged, and safe (QuEChERS); traditional solid-liquid extraction (SLE); and Soxhlet extraction were used for soil sample preparation, while detection and quantification of pesticides were performed using gas chromatography-mass spectrometry (GC-MS). Results: The tested methods featured good sensitivity, and with the exception for carbofuran (Soxhlet method, LOD = 29 mu g/kg), for the rest of the pesticides, the studied LODs were less than 12 mu g/kg. Except for simazine and carbofuran, LODs obtained by Soxhlet extraction were lower than values obtained by other two methods, whereas QuEChERS gave lower LODs than the traditional SLE method for all compounds except atrazine and acetochlor. The recoveries obtained applying QuEChERS, traditional SLE, and Soxhlet methods for multiple analyses of soil samples fortified at 10,75, and 200 mu g/kg of each pesticide were in the ranges 54-103,40-91, and 12-92%, respectively. Except for chlorothalonil, the highest recoveries were obtained by the QuEChERS method. Soxhlet was better than traditional SLE method for chlorothalonil, heptachlor, and aldrin; organophosphorus pesticides (fenitrothion and diazinon) and trifluralin, gave similar recoveries for both methods. All three methods were proven to be repeatable, with RSDs lower than 19%. Conclusions: Although all tested methods showed as satisfactory regarding most analytical parameters, QuEChERS method showed much better results in terms of confidence, indicating that traditional SLE and Soxhlet extraction still need improvements for determination of multiclass pesticides in soil samples.", publisher = "AOAC Int, Gaithersburg", journal = "Journal of AOAC International", title = "Comparison of QuEChERS with Traditional Sample Preparation Methods in the Determination of Multiclass Pesticides in Soil", pages = "51-46", number = "1", volume = "102", doi = "10.5740/jaoacint.18-0296" }
Đurović-Pejčev, R., Bursić, V.,& Zeremski, T.. (2019). Comparison of QuEChERS with Traditional Sample Preparation Methods in the Determination of Multiclass Pesticides in Soil. in Journal of AOAC International AOAC Int, Gaithersburg., 102(1), 46-51. https://doi.org/10.5740/jaoacint.18-0296
Đurović-Pejčev R, Bursić V, Zeremski T. Comparison of QuEChERS with Traditional Sample Preparation Methods in the Determination of Multiclass Pesticides in Soil. in Journal of AOAC International. 2019;102(1):46-51. doi:10.5740/jaoacint.18-0296 .
Đurović-Pejčev, Rada, Bursić, Vojislava, Zeremski, Tijana, "Comparison of QuEChERS with Traditional Sample Preparation Methods in the Determination of Multiclass Pesticides in Soil" in Journal of AOAC International, 102, no. 1 (2019):46-51, https://doi.org/10.5740/jaoacint.18-0296 . .