Base de dados : MEDLINE
Pesquisa : D02.705.400.625.650 [Categoria DeCS]
Referências encontradas : 116 [refinar]
Mostrando: 1 .. 10   no formato [Detalhado]

página 1 de 12 ir para página                         

  1 / 116 MEDLINE  
              next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28511133
[Au] Autor:Ratn A; Awasthi Y; Kumar M; Singh SK; Tripathi R; Trivedi SP
[Ad] Endereço:Environmental Toxicology & Bioremediation Laboratory, Department of Zoology, University of Lucknow, Lucknow 226007, India.
[Ti] Título:Phorate induced oxidative stress, DNA damage and differential expression of p53, apaf-1 and cat genes in fish, Channa punctatus (Bloch, 1793).
[So] Source:Chemosphere;182:382-391, 2017 Sep.
[Is] ISSN:1879-1298
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The present study was conducted to assess the in-vivo activities of certain molecular biomarkers under the impact of phorate exposure. Fish, Channa punctatus (35 ± 3.0 g; 14.5 ± 1.0 cm; Actinopterygii) were subjected to semi-static conditions having 5% (0.0375 mg/L for T1 group) and 10% of 96 h-LC (0.075 mg/L for T2 group) of phorate exposure for 15 and 30 d. The oxidative stress was assessed in terms of superoxide dismutase (SOD) and catalase (CAT) activities. DNA damage was measured as induction of micronuclei (MN) and consequent differential expression of apoptotic genes-tumor suppressor (p53), apoptotic peptidase activating factor-1 (apaf-1) and catalase (cat) in liver and kidney, two major sites of biotransformation in fish, were quantified. Our findings reveal significant (p < 0.001) augmentations in SOD and CAT activities of liver and kidney tissues. MN frequency in erythrocytes of fish also increases significantly (p < 0.05) in a dose- and time-dependent manner. The mRNA level of p53 increased significantly (p < 0.05) in liver at 10% of 96 h-LC of phorate exposure after 30 d suggesting generation of stress due to accumulation of reactive oxygen species (ROS). Eventually, these findings decipher the dual role of ROS in generating genotoxicity as is evident by micronuclei induction and differential regulation of p53, apaf-1 and cat genes during the phorate induced DNA damage and apoptosis in test fish. The experimental inferences drawn on the basis of activities of aforesaid biomarkers shall be helpful in elucidating the possible causes of apoptosis under stressful conditions. Further, this study finds ample application in biomonitoring of phorate polluted aquatic ecosystem.
[Mh] Termos MeSH primário: Fator Apoptótico 1 Ativador de Proteases/efeitos dos fármacos
Catalase/genética
Dano ao DNA/efeitos dos fármacos
Peixes/metabolismo
Estresse Oxidativo/efeitos dos fármacos
Forato/farmacologia
Proteína Supressora de Tumor p53/efeitos dos fármacos
[Mh] Termos MeSH secundário: Animais
Fator Apoptótico 1 Ativador de Proteases/genética
Catalase/metabolismo
Inibidores da Colinesterase/farmacologia
Perfilação da Expressão Gênica
Rim/metabolismo
Fígado/metabolismo
Perciformes/metabolismo
Superóxido Dismutase/metabolismo
Proteína Supressora de Tumor p53/genética
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Apoptotic Protease-Activating Factor 1); 0 (Cholinesterase Inhibitors); 0 (Tumor Suppressor Protein p53); 3W54X3W9IV (Phorate); EC 1.11.1.6 (Catalase); EC 1.15.1.1 (Superoxide Dismutase)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170922
[Lr] Data última revisão:
170922
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170517
[St] Status:MEDLINE


  2 / 116 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28152053
[Au] Autor:Kassouf N; Syed S; Larner J; Amlôt R; Chilcott RP
[Ad] Endereço:Research Centre for Topical Drug Delivery and Toxicology, School of Pharmacy, University of Hertfordshire, Hatfield, United Kingdom.
[Ti] Título:Evaluation of absorbent materials for use as ad hoc dry decontaminants during mass casualty incidents as part of the UK's Initial Operational Response (IOR).
[So] Source:PLoS One;12(2):e0170966, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The UK's Initial Operational Response (IOR) is a revised process for the medical management of mass casualties potentially contaminated with hazardous materials. A critical element of the IOR is the introduction of immediate, on-scene disrobing and decontamination of casualties to limit the adverse health effects of exposure. Ad hoc cleansing of the skin with dry absorbent materials has previously been identified as a potential means of facilitating emergency decontamination. The purpose of this study was to evaluate the in vitro oil and water absorbency of a range of materials commonly found in the domestic and clinical environments and to determine the effectiveness of a small, but representative selection of such materials in skin decontamination, using an established ex vivo model. Five contaminants were used in the study: methyl salicylate, parathion, diethyl malonate, phorate and potassium cyanide. In vitro measurements of water and oil absorbency did not correlate with ex vivo measurements of skin decontamination. When measured ex vivo, dry decontamination was consistently more effective than a standard wet decontamination method ("rinse-wipe-rinse") for removing liquid contaminants. However, dry decontamination was ineffective against particulate contamination. Collectively, these data confirm that absorbent materials such as wound dressings and tissue paper provide an effective, generic capability for emergency removal of liquid contaminants from the skin surface, but that wet decontamination should be used for non-liquid contaminants.
[Mh] Termos MeSH primário: Descontaminação/métodos
Incidentes com Feridos em Massa
Absorção Cutânea/efeitos dos fármacos
[Mh] Termos MeSH secundário: Animais
Feminino
Malonatos/toxicidade
Paration/toxicidade
Forato/toxicidade
Cianeto de Potássio/toxicidade
Salicilatos/toxicidade
Suínos
Reino Unido
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Malonates); 0 (Salicylates); 3W54X3W9IV (Phorate); 53A58PA183 (diethyl malonate); 61G466064D (Parathion); LAV5U5022Y (methyl salicylate); MQD255M2ZO (Potassium Cyanide)
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170814
[Lr] Data última revisão:
170814
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170203
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0170966


  3 / 116 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:27643926
[Au] Autor:Busi R; Gaines TA; Powles S
[Ad] Endereço:Australian Herbicide Resistance Initiative, School of Plant Biology, University of Western Australia, Perth, WA, Australia.
[Ti] Título:Phorate can reverse P450 metabolism-based herbicide resistance in Lolium rigidum.
[So] Source:Pest Manag Sci;73(2):410-417, 2017 Feb.
[Is] ISSN:1526-4998
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Organophosphate insecticides can inhibit specific cytochrome P450 enzymes involved in metabolic herbicide resistance mechanisms, leading to synergistic interactions between the insecticide and the herbicide. In this study we report synergistic versus antagonistic interactions between the organophosphate insecticide phorate and five different herbicides observed in a population of multiple herbicide-resistant Lolium rigidum. RESULTS: Phorate synergised with three different herbicide modes of action, enhancing the activity of the ALS inhibitor chlorsulfuron (60% LD reduction), the VLCFAE inhibitor pyroxasulfone (45% LD reduction) and the mitosis inhibitor trifluralin (70% LD reduction). Conversely, phorate antagonised the two thiocarbamate herbicides prosulfocarb and triallate with a 12-fold LD increase. CONCLUSION: We report the selective reversal of P450-mediated metabolic multiple resistance to chlorsulfuron and trifluralin in the grass weed L. rigidum by synergistic interaction with the insecticide phorate, and discuss the putative mechanistic basis. This research should encourage diversity in herbicide use patterns for weed control as part of a long-term integrated management effort to reduce the risk of selection of metabolism-based multiple herbicide resistance in L. rigidum. © 2016 Society of Chemical Industry.
[Mh] Termos MeSH primário: Resistência a Herbicidas
Herbicidas/farmacologia
Lolium/efeitos dos fármacos
Forato/farmacologia
[Mh] Termos MeSH secundário: Inibidores da Colinesterase/farmacologia
Sistema Enzimático do Citocromo P-450/metabolismo
Inseticidas/farmacologia
Lolium/metabolismo
Sinergistas de Praguicidas
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Cholinesterase Inhibitors); 0 (Herbicides); 0 (Insecticides); 0 (Pesticide Synergists); 3W54X3W9IV (Phorate); 9035-51-2 (Cytochrome P-450 Enzyme System)
[Em] Mês de entrada:1707
[Cu] Atualização por classe:170713
[Lr] Data última revisão:
170713
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160920
[St] Status:MEDLINE
[do] DOI:10.1002/ps.4441


  4 / 116 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:26462920
[Au] Autor:Bala R; Sharma RK; Wangoo N
[Ad] Endereço:Department of Chemistry and Centre for Advanced Studies in Chemistry, Panjab University, Sector-14, Chandigarh, 160014, India.
[Ti] Título:Development of gold nanoparticles-based aptasensor for the colorimetric detection of organophosphorus pesticide phorate.
[So] Source:Anal Bioanal Chem;408(1):333-8, 2016 Jan.
[Is] ISSN:1618-2650
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:The present study reports a highly simple and rapid method for the detection of a widely used and extremely toxic organophosphorus pesticide, phorate. The detection employs a pesticide-specific aptamer as the recognition element and gold nanoparticles as the optical sensors. The aptamer, owing to its random coil structure, provides stability to the gold nanoparticles upon linking, thereby keeping the nanoparticles well dispersed. However, on the addition of the target pesticide, the aptamer acquires a rigid conformation resulting in the aggregation of the gold nanoparticles. Consequently, the color of the solution changes from red to blue and is easily observable with the naked eye. The proposed method was linear in the concentration range of 0.01 nM to 1.3 µm with the limit of detection as low as 0.01 nM. Moreover, the proposed assay selectively recognized phorate in the presence of other interfering substances and, thus, can be applied to real samples for the rapid and efficient screening of phorate.
[Mh] Termos MeSH primário: Colorimetria/métodos
Praguicidas/análise
Forato/análise
[Mh] Termos MeSH secundário: Aptâmeros de Nucleotídeos/análise
Ouro/química
[Pt] Tipo de publicação:EVALUATION STUDIES; JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Aptamers, Nucleotide); 0 (Pesticides); 3W54X3W9IV (Phorate); 7440-57-5 (Gold)
[Em] Mês de entrada:1610
[Cu] Atualização por classe:161230
[Lr] Data última revisão:
161230
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:151015
[St] Status:MEDLINE
[do] DOI:10.1007/s00216-015-9085-4


  5 / 116 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
[PMID]:26832717
[Au] Autor:Zhang B; Yan T; Li F; Li X; Jian X
[Ti] Título:[A case of severe phorate poisoning treatment].
[So] Source:Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi;33(9):710-1, 2015 Sep.
[Is] ISSN:1001-9391
[Cp] País de publicação:China
[La] Idioma:chi
[Mh] Termos MeSH primário: Inseticidas/envenenamento
Intoxicação por Organofosfatos/diagnóstico
Forato/toxicidade
[Mh] Termos MeSH secundário: Seres Humanos
[Pt] Tipo de publicação:CASE REPORTS; JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Insecticides); 3W54X3W9IV (Phorate)
[Em] Mês de entrada:1607
[Cu] Atualização por classe:160202
[Lr] Data última revisão:
160202
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160203
[St] Status:MEDLINE


  6 / 116 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:26210825
[Au] Autor:Bavili Tabrizi A; Abdollahi A
[Ad] Endereço:Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran. a.bavili@tbzmed.ac.ir.
[Ti] Título:Determination of Organothiophosphate Insecticides in Environmental Water Samples by a Very Simple and Sensitive Spectrofluorimetric Method.
[So] Source:Bull Environ Contam Toxicol;95(4):536-41, 2015 Oct.
[Is] ISSN:1432-0800
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:A simple, rapid and sensitive spectrofluorimetric method was developed for the determination of di-syston, ethion and phorate in environmental water samples. The procedure is based on the oxidation of these pesticides with cerium (IV) to produce cerium (III), and its fluorescence was monitored at 368 ± 3 nm after excitation at 257 ± 3 nm. The variables effecting oxidation of each pesticide were studied and optimized. Under the experimental conditions used, the calibration graphs were linear over the range 0.2-15, 0.1-13, 0.1-13 ng mL(-1) for di-syston, ethion and phorate, respectively. The limit of detection and quantification were in the range 0.034-0.096 and 0.112-0.316 ng mL(-1), respectively. Intra- and inter-day assay precisions, expressed as the relative standard deviation (RSD), were lower than 5.2 % and 6.7 %, respectively. Good recoveries in the range 86 %-108 % were obtained for spiked water samples. The proposed method was applied to the determination of studied pesticides in environmental water samples.
[Mh] Termos MeSH primário: Monitoramento Ambiental/métodos
Inseticidas/análise
Qualidade da Água
[Mh] Termos MeSH secundário: Dissulfóton/análise
Dissulfóton/química
Inseticidas/química
Compostos Organotiofosforados/análise
Compostos Organotiofosforados/química
Forato/análise
Forato/química
Espectrometria de Fluorescência/métodos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Insecticides); 0 (Organothiophosphorus Compounds); 2TI07NO12Y (ethion); 3CY5EKL6MT (Disulfoton); 3W54X3W9IV (Phorate)
[Em] Mês de entrada:1605
[Cu] Atualização por classe:150919
[Lr] Data última revisão:
150919
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:150727
[St] Status:MEDLINE
[do] DOI:10.1007/s00128-015-1612-7


  7 / 116 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:26205232
[Au] Autor:Jariyal M; Gupta VK; Mandal K; Jindal V
[Ad] Endereço:Department of Microbiology, Punjab Agricultural University, Ludhiana, Punjab, 141004, India. jariyal_monu@yahoo.com.
[Ti] Título:Brevibacterium frigoritolerans as a Novel Organism for the Bioremediation of Phorate.
[So] Source:Bull Environ Contam Toxicol;95(5):680-6, 2015 Nov.
[Is] ISSN:1432-0800
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Phorate, an organophosphorus insecticide, has been found effective for the control of various insect pests. However, it is an extremely hazardous insecticide and causes a potential threat to ecosystem. Bioremediation is a promising approach to degrade the pesticide from the soil. The screening of soil from sugarcane fields resulted in identification of Brevibacterium frigoritolerans, a microorganism with potential for phorate bioremediation was determined. B. frigoritolerans strain Imbl 2.1 resulted in the active metabolization of phorate by between 89.81% and 92.32% from soils amended with phorate at different levels (100, 200, 300 mg kg(-1) soil). But in case of control soil, 33.76%-40.92% degradation were observed. Among metabolites, sulfone was found as the main metabolite followed by sulfoxide. Total phorate residues were not found to follow the first order kinetics. This demonstrated that B. frigoritolerans has potential for bioremediation of phorate both in liquid cultures and agricultural soils.
[Mh] Termos MeSH primário: Brevibacterium/crescimento & desenvolvimento
Inseticidas/análise
Forato/análise
Microbiologia do Solo
Poluentes do Solo/análise
[Mh] Termos MeSH secundário: Agricultura
Bacillus/metabolismo
Biodegradação Ambiental
Brevibacterium/metabolismo
Inseticidas/metabolismo
Cinética
Forato/metabolismo
Solo/química
Poluentes do Solo/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Insecticides); 0 (Soil); 0 (Soil Pollutants); 3W54X3W9IV (Phorate)
[Em] Mês de entrada:1605
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:150725
[St] Status:MEDLINE
[do] DOI:10.1007/s00128-015-1617-2


  8 / 116 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:26186726
[Au] Autor:Jariyal M; Gupta VK; Jindal V; Mandal K
[Ad] Endereço:Department of Microbiology, Punjab Agricultural University, Ludhiana 141004, Punjab, India. Electronic address: jariyal_monu@yahoo.com.
[Ti] Título:Isolation and evaluation of potent Pseudomonas species for bioremediation of phorate in amended soil.
[So] Source:Ecotoxicol Environ Saf;122:24-30, 2015 Dec.
[Is] ISSN:1090-2414
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Use of phorate as a broad spectrum pesticide in agricultural crops is finding disfavor due to persistence of both the principal compound as well as its toxic residues in soil. Three phorate utilizing bacterial species (Pseudomonas sp. strain Imbl 4.3, Pseudomonas sp. strain Imbl 5.1, Pseudomonas sp. strain Imbl 5.2) were isolated from field soils. Comparative phorate degradation analysis of these species in liquid cultures identified Pseudomonas sp. strain Imbl 5.1 to cause complete metabolization of phorate during seven days as compared to the other two species in 13 days. In soils amended with phorate at different levels (100, 200, 300 mg kg(-1) soil), Pseudomonas sp. strain Imbl 5.1 resulted in active metabolization of phorate by between 94.66% and 95.62% establishing the same to be a potent bacterium for significantly relieving soil from phorate residues. Metabolization of phorate to these phorate residues did not follow the first order kinetics. This study proves that Pseudomonas sp. strain Imbl 5.1 has huge potential for active bioremediation of phorate both in liquid cultures and agricultural soils.
[Mh] Termos MeSH primário: Forato/análise
Pseudomonas/crescimento & desenvolvimento
Microbiologia do Solo
Poluentes do Solo/análise
Solo/química
[Mh] Termos MeSH secundário: Agricultura
Biodegradação Ambiental
Pseudomonas/isolamento & purificação
Solo/normas
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Soil); 0 (Soil Pollutants); 3W54X3W9IV (Phorate)
[Em] Mês de entrada:1606
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:150718
[St] Status:MEDLINE


  9 / 116 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:25977034
[Au] Autor:He J; Song L; Chen S; Li Y; Wei H; Zhao D; Gu K; Zhang S
[Ad] Endereço:School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, China. Electronic address: juanhe@haut.edu.cn.
[Ti] Título:Novel restricted access materials combined to molecularly imprinted polymers for selective solid-phase extraction of organophosphorus pesticides from honey.
[So] Source:Food Chem;187:331-7, 2015 Nov 15.
[Is] ISSN:0308-8146
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:A novel restricted access materials (RAM) combined to molecularly imprinted polymers (MIPs), using malathion as template molecule and glycidilmethacrylate (GMA) as pro-hydrophilic co-monomer, were prepared for the first time. RAM-MIPs with hydrophilic external layer were characterized by scanning electron microscopy and recognition and selectivity properties were compared with the restricted access materials-non-molecularly imprinted polymers (RAM-NIPs) and unmodified MIPs. RAM-MIPs were used as the adsorbent enclosed in solid phase extraction column and several important extraction parameters were comprehensively optimized to evaluate the extraction performance. Under the optimum extraction conditions, RAM-MIPs exhibited comparable or even higher selectivity with greater extraction capacity toward six kinds of organophosphorus pesticides (including malathion, ethoprophos, phorate, terbufos, dimethoate, and fenamiphos) compared with the MIPs and commercial solid phase extraction columns. The RAM-MIPs solid phase extraction coupled with gas chromatography was successfully applied to simultaneously determine six kinds of organophosphorus pesticides from honey sample. The new established method showed good linearity in the range of 0.01-1.0 µg mL(-1), low limits of detection (0.0005-0.0019 µg mL(-1)), acceptable reproducibility (RSD, 2.26-4.81%, n = 6), and satisfactory relative recoveries (90.9-97.6%). It was demonstrated that RAM-MIPs solid phase extraction with excellent selectivity and restricted access function was a simple, rapid, selective, and effective sample pretreatment method.
[Mh] Termos MeSH primário: Mel/análise
Impressão Molecular/métodos
Compostos Organofosforados/análise
Praguicidas/análise
Polímeros/química
Extração em Fase Sólida/métodos
[Mh] Termos MeSH secundário: Dimetoato/análise
Malation/análise
Microscopia Eletrônica de Varredura
Compostos Organotiofosforados/análise
Forato/análise
Reprodutibilidade dos Testes
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Organophosphorus Compounds); 0 (Organothiophosphorus Compounds); 0 (Pesticides); 0 (Polymers); 3W54X3W9IV (Phorate); 765Y5683OQ (ethoprophos); H4NO3L2HBE (fenamiphos); M83BN0F8R9 (terbufos); U5N7SU872W (Malathion); W6U08B045O (Dimethoate)
[Em] Mês de entrada:1601
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:150516
[St] Status:MEDLINE


  10 / 116 MEDLINE  
              first record previous record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:24694705
[Au] Autor:Li X; Zhang S; Yu Z; Yang T
[Ad] Endereço:School of Science, Shenyang Ligong University, Liaoning Shenyang 110159, P.R. China.
[Ti] Título:Surface-enhanced Raman spectroscopic analysis of phorate and fenthion pesticide in apple skin using silver nanoparticles.
[So] Source:Appl Spectrosc;68(4):483-7, 2014.
[Is] ISSN:1943-3530
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Traditional pesticide residue detection methods are usually complicated, time consuming, and expensive. Rapid, portable, online, and real-time detection kits are the developing direction of pesticide testing. In this paper, we used a surface-enhanced Raman spectroscopy (SERS) technique to detect the organophosphate pesticide residue of phorate and fenthion in apple skin, for the purpose of finding a fast, simple, and convenient detection method for pesticide detection. The results showed that the characteristic wavenumbers of the two organophosphorus pesticides are more easily identified using SERS. We selected the Raman peaks at 728 cm(-1) of phorate and 1215 cm(-1) of fenthion as the target peaks for quantitative analysis, and utilized internal standards to establish linear regression models for phorate and fenthion. The detection limit was 0.05 mg/L for phorate and 0.4 mg/L for fenthion. This method can be used as a quantitative analytical reference for the detection of phorate and fenthion.
[Mh] Termos MeSH primário: Fention/análise
Malus/química
Nanopartículas Metálicas/química
Forato/análise
Análise Espectral Raman/métodos
[Mh] Termos MeSH secundário: Modelos Lineares
Resíduos de Praguicidas/análise
Prata/química
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Pesticide Residues); 3M4G523W1G (Silver); 3W54X3W9IV (Phorate); BL0L45OVKT (Fenthion)
[Em] Mês de entrada:1412
[Cu] Atualização por classe:150522
[Lr] Data última revisão:
150522
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:140404
[St] Status:MEDLINE
[do] DOI:10.1366/13-07080



página 1 de 12 ir para página                         
   


Refinar a pesquisa
  Base de dados : MEDLINE Formulário avançado   

    Pesquisar no campo  
1  
2
3
 
           



Search engine: iAH v2.6 powered by WWWISIS

BIREME/OPAS/OMS - Centro Latino-Americano e do Caribe de Informação em Ciências da Saúde