Results 81 to 90 of about 4,456 (184)

The Usefulness of MS³ to Confirm Poisoning on the Example of Dog Poisoning with Strychnine

Molecules, 2019
Strychnine is an alkaloid with strong toxic properties. Poisoning results in muscular contractions and death through asphyxiation. Intentional or accidental poisonings with strychnine occur mainly in small animals, especially dogs and occasionally cats ...
Tomasz Śniegocki, Bartosz Sell, Andrzej Posyniak   +2 more
doaj   +1 more source

Dissipation of methomyl residues in tomato fruits, soil and water using LC-MS/MS

Journal of Plant Protection Research, 2019
Tomato is an economically important vegetable crop which is attacked heavily by insect pests leading to reduction of yield and quality of the fruits. Field experiments were carried out to investigate the dissipation of methomyl (a common insecticide ...
Dalia El-Hefny, Ibrahim Abdallah, Rania Helmy, Hend Mahmoud   +3 more
doaj   +1 more source

Elmalarda Chlorpyrifos’un QuEChERS Analiz Yöntemi ile Metot Validasyonu

Çanakkale Onsekiz Mart Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2018
QuEChERS metodu ile “Golden Delicious” ve “Starking Delicious” elma çeşitlerinde chlorpyrifos etken maddenin kalıntı analizi için 0.05, 0.5 ve 5.0 mg/kg seviyelerinde zenginleştirme yapılarak validasyon gerçekleştirilmiştir. Analizler yapıldıktan sonra LC-MS/MS kullanılarak kromatografik ayrıştırma yapılmıştır.
DURMAZ, Ahmet, TİRYAKİ, Osman
openaire   +3 more sources

Determination of tocopherols and sitosterols in seeds and nuts by QuEChERS-liquid chromatography

Food Chemistry, 2016
In the present work a simple, reliable and affordable sample treatment method for the simultaneous analysis of tocopherols and free phytosterols in nuts was developed. Analyte extraction was carried out using the QuEChERS methodology and analyte separation and detection were accomplished using HPLC-DAD. The use of this methodology for the extraction of
Delgado Zamarreño, María Milagros, Fernández-Prieto, Cristina, Bustamante Rángel, Myriam, Pérez‐Martín, Lara   +3 more
openaire   +3 more sources

QuEChERS and soil analysis. An Overview.

Sample Preparation, 2013
Jose Vera, Luísa Correia-Sá, Paula Paíga, Idalina Bragança, Virgínia C. Fernandes, Valentina F. Domingues, Cristina Delerue-Matos   +6 more
openaire   +1 more source

QuEChERS pesticides extraction using EMR sorbent

, 2016
For the efficient removal of lipids from a wide range of matrices during the QuEChERS extraction and purification the different sorbents can be used. The novel sorbent mixture, which is primarily present as a sorbent for fatty matrices, containing C18 and some special kind of polymers, known as EMR ‒ Lipid (Enhanced Matrix Removal ‒ Lipid) was applied ...
Vuković, Gorica, Bursić, Vojislava, Agarski, Miroslav, Zeremski, Tijana, Đurović-Pejčev, Rada, Marinković, Dušan, Petrović, Miloš   +6 more
openaire   +1 more source

QuEChERS-Based LC-MS/MS and HRMS Methods for PFAS Determination in Food: A Systematic Review. [PDF]

Foods
Galluzzo FG, Cammilleri G, Pantano L, Calabrese V, Buscemi MD, Messina EMD, Alfano C, Bonomo D, Pulvirenti A, Macaluso A, Ferrantelli V, Lo Dico GM.   +11 more
europepmc   +1 more source

[Experimental teaching design of instrument analysis for undergraduate study： detection of bifenthrin pesticide residues in tea by response surface methodology-optimized QuEChERS combined with gas chromatography-mass spectrometry]. [PDF]

Se Pu
Gu CX.
europepmc   +1 more source

Monitoring Ethylene Oxide Residues in Food: A Simplified QuEChERS-Based GC-MS/MS Method for Routine Analysis. [PDF]

Molecules
Mauti T, Delfino D, Nicolini V, Droghei B, Colangelo D, Triolone D, Fiorucci F, Di Giustino P, Mancuso M, Leo M, D'Onofrio F, Ubaldi A, Russo K.   +12 more
europepmc   +1 more source

Comparative Study of Hydrolysis-Based Methods Coupled with QuEChERS Extraction Followed by GC-MS/MS and LC-MS/MS for the Determination of Complex Pesticide Residues in Melons and Dry Beans. [PDF]

Foods
Wenio I, Dawidziak D, Derewiaka D, Majewska E, Bartosiewicz I.   +4 more
europepmc   +1 more source