Results 91 to 100 of about 384,770 (213)

VALIDAÇÃO DE MÉTODO PARA DETERMINAÇÃO DE PESTICIDAS DA SOJA EM ÁGUAS SUBTERRÂNEAS POR GC-ECD

Revista Águas Subterrâneas, 2009
Devido ao continuo crescimento da produção de soja no Brasil, aumenta-se a preocupação em relação à possível contaminação de solo e água subterrânea pelo uso de agrotóxicos para combate a pragas do cultivo da soja.
Cristina Gonçalves, Liamara Eliete Gomes, Gabriela Maria Maria Arantes Rodrigues, Lídia Katsuoka, Clarice Yumi Hiramatsu, Patrícia Ferreira Silvério   +5 more
doaj  

A rapid method for the extraction and determination of vitamin E metabolites in human urine

Journal of Lipid Research, 2000
A method for the direct extraction and routine analysis of the vitamin E metabolites γ- and α-carboxyethyl hydroxychroman (γ- and α-CEHC) from human urine has been developed.
John K. Lodge, Maret G. Traber, Angelika Elsner, Regina Brigelius-Flohé   +3 more
doaj   +1 more source

[Determination of triazolam in human urine by GC/ECD].

Fa yi xue za zhi, 2002
A GC/ECD method was established to determine triazolam in human urine qualitatively and quantitatively. The triazolam was extracted from 2 ml urine with 2 x 2 ml chloroform. The retention time of triazolam was 10.74 min. The limit of the determination was 0.5 ng/ml. The recovery of the procedure in 5 ng/ml was 95.98%, CV = 7.85% (n = 5).
openaire   +1 more source

Zeytinyağındaki pestisit kalıntılarının gaz kromatogrofisi/elektron tutucu deketör (GC-ECD) ve gaz kromatografisi/kütle spektrometresi (GC/MS) ile saptanması

, 2004
Bu çalışmada Ege Bölgesiʼnin çeşitli yerlerinden toplanan zeytinyağı örneklerindeki bazı pestisit kalıntıları incelenmiştir. İncelenen pestisitler ; parathionmethyl, malathion, fenithrothion, chlorpyrifosmethyl, azinphos methyl, endosulfan ...
Türköz, Gözde
core  

Application of the QuEChERS method for the determination of organochlorine pesticide residues in Brazilian fruit pulps by GC-ECD

The Quick, Easy, Cheap, Effective, Rugged, and Safe (QuEChERS) method was applied to the extraction of 14 organochlorine pesticides (OCPs) residues from commercial fruit pulps available in supermarkets in Fortaleza, Northeastern Brazil. The analyses were
Domingues, Valentina F., Becker, Helena, Paz, Mário, Vidal, Carla B., Longhinotti, Elisane, Correia-Sá, Luísa, Delerue-Matos, Cristina   +6 more
core   +1 more source

Evaluation of Ozonation Technique for Pesticide Residue Removal in Okra and Green Chili Using GC-ECD and LC-MS/MS. [PDF]

Plants (Basel), 2022
Singh S, Solanki V, Bardhan K, Kansara R, Vyas TK, Gandhi K, Dhakan D, Ali HM, Siddiqui MH.   +8 more
europepmc   +1 more source

Comparison of Detection Limits and Relative Responses for Alternative Fluorocarbons by GC‐ECD, GCAED,and GC‐MS

, 2001
Detection limits for several common alternative fluorocarbons (AFCs) using electron capture detector (ECD), mass spectrometry (MS) and atomic emission detector (AED) gas chromatography (GC) are determined and compared.
Sousa, Sonia R., Bialkowski, Stephen E., Stephen E Bialkowski, Sonia R Sousa   +3 more
core   +1 more source

Multirresidual analysis of pesticides in citrus foods through chromatographic techniques: GC/ECD and GC/MS

, 2020
Atualmente o Brasil vem ganhando espaço no mercado exportador de suco de laranja, sendo responsável por 61% da produção mundial. Tendo em vista a grande produtividade brasileira de laranja, a utilização de pesticidas acompanha este crescimento produtivo.
Manhani, Kelly Cristina
core   +1 more source

Quantification using GC/ECD: challenges and pitfalls

Macedonian Pharmaceutical Bulletin, 2020
Ana Poceva Panovska, Jelena Acevska, Gabriela Petrovska Dimitrievska, Katerina Brezovska, Natalija Nakov, Zoran Kavrakovski   +5 more
openaire   +1 more source

Analysis of organophosphorus pesticides in whole blood by GC-MS-mu ECD with forensic purposes [PDF]

, 2015
In the present work, two multi-residue methods for the determination of ten organophosphorus pesticides (OPs), namely chlorfenvinphos, chlorpyrifos, diazinon, dimethoate, fenthion, malathion, parathion, phosalone, pirimiphos-methyl and quinalphos, in ...
Valente, Nuno I. P., Silvestre, Armando, Tarelho, Sonia, Teixeira, Helena M., Castro, Andre L., Castro, André Lobo, Valente, Nuno I.P.   +6 more
core   +1 more source