All Stories

  1. Development and validation of a method for the analysis of pyrethroid residues in fish using GC–MS
  2. Simultaneous determination of the quaternary ammonium pesticides paraquat, diquat, chlormequat, and mepiquat in barley and wheat using a modified quick polar pesticides method, diluted standard addition calibration and hydrophilic interaction liquid ch...
  3. Organophosphate pesticide trichlorfon induced neurotoxic effects in freshwater silver catfish Rhamdia quelen via disruption of blood-brain barrier: Implications on oxidative status, cell viability and brain neurotransmitters
  4. Disturbance of energetic homeostasis and oxidative damage provoked by trichlorfon as relevant toxicological mechanisms using silver catfish as experimental model
  5. A multiclass method for the determination of pharmaceuticals in drinking water by solid phase extraction and ultra-high performance liquid chromatography-tandem mass spectrometry
  6. Purinergic signalling as a potential pathway for trichlorfon induced-inflammation and impairment of the immune response using freshwater silver catfish
  7. Prenatal Androgenization of Ewes as a Model of Hirsutism in Polycystic Ovary Syndrome
  8. Determination of organochlorine pesticides (OCPs) in breast milk from Rio Grande do Sul, Brazil, using a modified QuEChERS method and gas chromatography-negative chemical ionisation-mass spectrometry
  9. Gill bioenergetics dysfunction and oxidative damage induced by thiamethoxam exposure as relevant toxicological mechanisms in freshwater silver catfish Rhamdia quelen
  10. Bioaccumulation and oxidative stress caused by pesticides in Cyprinus carpio reared in a rice-fish system
  11. Thiamethoxam induced hepatic energy changes in silver catfish via impairment of the phosphoryl transfer network pathway: Toxicological effects on energetics homeostasis
  12. Optimization of sample preparation by central composite design for multi-class determination of veterinary drugs in bovine muscle, kidney and liver by ultra-high-performance liquid chromatographic-tandem mass spectrometry
  13. Integrated biomarkers response confirm the antioxidant role of diphenyl diselenide against atrazine
  14. Purinergic signaling as potential target of thiamethoxam-induced neurotoxicity using silver catfish (Rhamdia quelen) as experimental model
  15. Biochemical Responses in Freshwater Fish Exposed to Insecticide Propoxur
  16. Presence of Anthropogenic Markers in Water: A Case Study of the Guaporé River Watershed, Brazil
  17. Protective effect of quercetin against oxidative stress induced by oxytetracycline in muscle of silver catfish
  18. Seasonal implications on toxicity biomarkers of Loricariichthys anus (Valenciennes, 1835) from a subtropical reservoir
  19. Bar adsorptive microextraction (BAμE) with a polymeric sorbent for the determination of emerging contaminants in water samples by ultra-high performance liquid chromatography with tandem mass spectrometry
  20. Multiresidue determination of pesticides in crop plants by the quick, easy, cheap, effective, rugged, and safe method and ultra-high-performance liquid chromatography tandem mass spectrometry using a calibration based on a single level standard additio...
  21. Evaluation of an alternative fluorinated sorbent for dispersive solid-phase extraction clean-up of the quick, easy, cheap, effective, rugged, and safe method for pesticide residues analysis
  22. Comprehensive Method Validation for the Determination of 170 Pesticide Residues in Pear Employing Modified QuEChERS Without Clean-Up and Ultra-High Performance Liquid Chromatography Coupled to Tandem Mass Spectrometry
  23. Evaluation of the rotating disk sorptive extraction (RDSE) technique with polymeric sorbent for multiresidue determination of pesticides in water by ultra-high-performance liquid chromatography–tandem mass spectrometry
  24. Dissipation of Clomazone, Imazapyr, and Imazapic Herbicides in Paddy Water under Two Rice Flood Management Regimes
  25. Richness and density of aquatic benthic macroinvertebrates after exposure to fungicides and insecticides in rice paddy fields
  26. The impact of postnatal leuprolide acetate treatment on reproductive characteristics in a rodent model of polycystic ovary syndrome
  27. Fungicide and insecticide residues in rice grains
  28. Advanced Sample Preparation Techniques for Pesticide Residues Determination by HRMS Analysis
  29. Método rápido para a determinação de ácido fólico em farinha de trigo empregando cromatografia líquida de alta eficiência com detecção por arranjo de diodos
  30. Determination of Six Synthetic Dyes in Sports Drinks by Dispersive Solid-Phase Extraction and HPLC-UV-Vis
  31. An effective method for pesticide residues determination in tobacco by GC-MS/MS and UHPLC-MS/MS employing acetonitrile extraction with low-temperature precipitation and d-SPE clean-up
  32. Determination of pesticides in coconut ( Cocos nucifera Linn.) water and pulp using modified QuEChERS and LC–MS/MS
  33. Quantitative Multiclass Pesticide Residue Analysis in Apple, Pear, and Grape by Modified QuEChERS and Liquid Chromatography Coupled to High-Resolution Mass Spectrometry
  34. A Simple and Fast Method for the Determination of 20 Veterinary Drug Residues in Bovine Kidney and Liver by Ultra-High-Performance Liquid Chromatography Tandem Mass Spectrometry
  35. Dilution standard addition calibration: A practical calibration strategy for multiresidue organic compounds determination
  36. Determination of Pesticide Residues in Soy-Based Beverages Using a QuEChERS Method (with Clean-Up Optimized by Central Composite Design) and Ultra-High-Performance Liquid Chromatography-Tandem Mass Spectrometry
  37. Liquid chromatography with high resolution mass spectrometry for identification of organic contaminants in fish fillet: screening and quantification assessment using two scan modes for data acquisition
  38. Determination of Pesticide Residues in Golden Berry (Physalis peruviana L.) by Modified QuEChERS Method and Ultra-High Performance Liquid Chromatography-Tandem Quadrupole Mass Spectrometry
  39. Imazapyr+imazapic herbicide determines acute toxicity in silver catfish Rhamdia quelen
  40. Evaluation of alternative sorbents for dispersive solid-phase extraction clean-up in the QuEChERS method for the determination of pesticide residues in rice by liquid chromatography with tandem mass spectrometry
  41. Effect of diphenyl diselenide diet supplementation on oxidative stress biomarkers in two species of freshwater fish exposed to the insecticide fipronil
  42. Optimization of a QuEChERS based method by means of central composite design for pesticide multiresidue determination in orange juice by UHPLC–MS/MS
  43. Use of Factorial Design in the Development of Multiresidue Method for Determination of Pesticide Residues in Wheat by Liquid Chromatography-Tandem Mass Spectrometry
  44. Acute exposure to the biopesticide azadirachtin affects parameters in the gills of common carp (Cyprinus carpio)
  45. Evaluation of QuEChERS Sample Preparation and Gas Chromatography Coupled to Mass Spectrometry for the Determination of Pesticide Residues in Grapes
  46. Fast Sample Preparation Method Using Ultra-High Performance Liquid Chromatography Coupled to Tandem Mass Spectrometry for Natamycin Determination in Wine Samples
  47. Evaluation of QuEChERS Sample Preparation for Determination of Avermectins Residues in Ovine Muscle by HPLC-FD and UHPLC-MS/MS
  48. Simultaneous Determination of Multiclass Pesticides and Antibiotics in Honey Samples Based on Ultra-High Performance Liquid Chromatography-Tandem Mass Spectrometry
  49. A simple and efficient method for imidazolinone herbicides determination in soil by ultra-high performance liquid chromatography–tandem mass spectrometry
  50. Spatial and temporal biomarkers responses of Astyanax jacuhiensis (Cope, 1894)(Characiformes: Characidae) from the middle rio Uruguai, Brazil
  51. Quantitative Analysis and Method Validation
  52. Imazethapyr and imazapic, bispyribac-sodium and penoxsulam: Zooplankton and dissipation in subtropical rice paddy water
  53. Steroidogenic enzymes mRNA expression profile and steroids production in bovine theca cells cultured in vitro and stimulated with angiotensin II
  54. Integrated Assessment of Biomarker Response in Carp (Cyprinus carpio) and Silver Catfish (Rhamdia quelen) Exposed to Clomazone
  55. Clinicopathological and toxicological aspects of poisoning by the clomazone herbicide in sheep
  56. Influence of extraction method on antibacterial activity of ethanolic extracts of Ocimum gratissimum L.
  57. Optimization and validation of a multiresidue method for pesticide determination in maize using gas chromatography coupled to tandem mass spectrometry
  58. Determination of pesticide residues in coconut tree trunks by modified QuEChERS method and ultra-high-performance liquid chromatography coupled to triple quadrupole tandem mass spectrometry
  59. Residues of Fungicides and Insecticides in Rice Field
  60. A comparison of adsorption equilibrium, kinetics and thermodynamics of aqueous phase clomazone between faujasite X and a natural zeolite from Kenya
  61. Development of a Multiresidue Method for Pesticide Analysis in Drinking Water by Solid Phase Extraction and Determination by Gas and Liquid Chromatography with Triple Quadrupole Tandem Mass Spectrometry
  62. Determinação de compostos organoalogenados em adubo orgânico empregando extração com auxílio de ultrassom e cromatografia gasosa com detecção por captura de elétrons
  63. Efeito do processamento industrial e doméstico de alimentos nos níveis de resíduos de agrotóxicos
  64. Optimization by Central Composite Design of a Modified QuEChERS Method for Extraction of Pesticide Multiresidue in Sweet Pepper and Analysis by Ultra-High-Performance Liquid Chromatography–Tandem Mass Spectrometry
  65. Evaluation of the QuEChERS method for the extraction of pharmaceuticals and personal care products from drinking-water treatment sludge with determination by UPLC-ESI-MS/MS
  66. Pesticide Multiresidue Determination in Rice Paddy Water by Gas Chromatography Coupled with Triple Quadrupole Mass Spectrometry
  67. AGROTÓXICOS E MEIO AMBIENTE: INSERÇÃO DO TEMA NA ESCOLA ATRAVÉS DE UMA ABORDAGEM INTERDISCIPLINAR
  68. Simultaneous LC-MS/MS Determination of Imidazolinone Herbicides Together with Other Multiclass Pesticide Residues in Soil
  69. Carbofuran promotes biochemical changes in carp exposed to rice field and laboratory conditions
  70. Determination of pesticides and related compounds in water by dispersive liquid–liquid microextraction and gas chromatography-triple quadrupole mass spectrometry
  71. Multiresidue Determination of Pesticide Residues in Honey by Modified QuEChERS Method and Gas Chromatography with Electron Capture Detection
  72. DETERMINATION OF PESTICIDE RESIDUES IN BOVINE MILK USING A MODIFIED QuEChERS METHOD AND GC-MS/MS
  73. Zooplankton community responses to the mixture of imazethapyr with imazapic and bispyribac-sodium herbicides under rice paddy water conditions
  74. Development of a multiresidue method for the determination of endocrine disrupters in fish fillet using gas chromatography–triple quadrupole tandem mass spectrometry
  75. Biodegradação dos herbicidas imazetapir e imazapique em solo rizosférico de seis espécies vegetais
  76. Determination of pesticide residues and related compounds in water and industrial effluent by solid-phase extraction and gas chromatography coupled to triple quadrupole mass spectrometry
  77. Imazethapyr and imazapic runoff under continuous and intermittent irrigation of paddy rice
  78. Oxidative stress in carp exposed to quinclorac herbicide under rice field condition
  79. Development of a Fast Method for the Determination of the Insecticide Fipronil and its Metabolites in Environmental Waters by SPE and GC-ECD
  80. O estado da arte na determinação de resíduos de medicamentos veterinários em alimentos de origem animal empregando técnicas cromatográficas acopladas à espectrometria de massas
  81. Determinação de resíduos de herbicidas em águas de lavoura de ­arroz irrigado empregando Extração em Fase Sólida e ­Cromatografia Líquida de Alta Eficiência com detecção por Arranjo de Diodos
  82. Transporte de agrotóxicos em lavoura de arroz irrigado sob três manejos de irrigação
  83. Erratum: Biodegradation of Herbicide Propanil and Its Subproduct 3,4-Dichloroaniline in Water
  84. Biodegradation of Herbicide Propanil and Its Subproduct 3,4-Dichloroaniline in Water
  85. An Overview About Recent Advances in Sample Preparation Techniques for Pesticide Residues Analysis in Cereals and Feedstuffs
  86. The effects of diphenyl diselenide on oxidative stress biomarkers in Cyprinus carpio exposed to herbicide quinclorac (Facet®)
  87. Effects of the commercial formulation containing fipronil on the non-target organism Cyprinus carpio: Implications for rice−fish cultivation
  88. Comparison of matrix solid-phase dispersion and modified QuEChERS methods for extraction of pesticide residues from onion
  89. Microextração Líquido-Líquido Dispersiva (DLLME): Fundamentos e aplicações 
  90. Extração em Fase Sólida Dispersiva na determinação de resíduos e contaminantes em alimentos
  91. Herbicides Persistence in Rice Paddy Water in Southern Brazil
  92. Repeated malathion exposure induces behavioral impairment and AChE activity inhibition in brains of rat pups
  93. Principais técnicas de preparo de amostra para a determinação de resíduos de agrotóxicos em água por cromatografia líquida com detecção por arranjo de diodos e por espectrometria de massas
  94. Oxidative stress and anxiety-like symptoms related to withdrawal of passive cigarette smoke in mice: Beneficial effects of pecan nut shells extract, a by-product of the nut industry
  95. Tissue Biochemical Alterations of Cyprinus carpio Exposed to Commercial Herbicide Containing Clomazone Under Rice-Field Conditions
  96. Development of a fast multiresidue method for the determination of pesticides in dry samples (wheat grains, flour and bran) using QuEChERS based method and GC–MS
  97. Commercial formulation containing quinclorac and metsulfuron-methyl herbicides inhibit acetylcholinesterase and induce biochemical alterations in tissues of Leporinus obtusidens
  98. Toxicological responses of Cyprinus carpio after exposure to a commercial herbicide containing imazethapyr and imazapic
  99. QuEChERS: possibilidades e tendências no preparo de amostra para determinação multirresíduo de pesticidas em alimentos
  100. Otimização e validação de método empregando quechers modificado e lc-esi-ms/ms para determinação de agrotóxicos em cebola
  101. Aumento da resposta analítica por meio da otimização do sistema de injeção sem divisão de fluxo em cromatografia gasosa empregando a lei dos gases ideais
  102. Exposure to tebuconazol in rice field and laboratory conditions induces oxidative stress in carp (Cyprinus carpio)
  103. Toxicological responses of Cyprinus carpio exposed to the herbicide penoxsulam in rice field conditions
  104. Oxidative stress biomarkers in Cyprinus carpio exposed to commercial herbicide bispyribac-sodium
  105. Resíduos de agrotóxicos na água de rios da Depressão Central do Estado do Rio Grande do Sul, Brasil
  106. A new gas chromatography/mass spectrometry (GC-MS) method for the multiresidue analysis of pesticides in bread
  107. Monitoramento de agrotóxicos em águas superficiais de regiões orizícolas no sul do Brasil
  108. Qualidade de água dos rios Vacacaí e Vacacaí-Mirim no Estado do Rio Grande do Sul, Brasil
  109. Lixiviação do imazethapyr em solo de várzea sob dois sistemas de manejo
  110. Determination of Flavonoids and Resveratrol in Wine by Turbulent-Flow Chromatography-LC-MS
  111. Design of a compressed air modulator to be used in comprehensive multidimensional gas chromatography and its application in the determination of pesticide residues in grapes
  112. Rapid and accurate hplc-dad method for the determination of the herbicide bispyribac-sodium in surface water, and its validation
  113. Multiresidue determination of pesticides in drinking water by gas chromatography-mass spectrometry after solid-phase extraction
  114. QuEChERS: um método moderno de preparo de amostra para determinação multirresíduo de pesticidas em alimentos por métodos cromatográficos acoplados à espectrometria de massas
  115. Rapid and accurate simultaneous determination of abamectin and ivermectin in bovine milk by high performance liquid chromatography with fluorescence detection
  116. Monitoramento de agrotóxicos em dois mananciais hídricos no sul do Brasil
  117. High Resolution Gel Permeation Chromatography Followed by GC–ECD for the Determination of Pesticide Residues in Soybeans
  118. Tribute to Ayrton Figueiredo Martins, Universidade Federal de Santa Maria
  119. The 2,4-D herbicide effects on acetylcholinesterase activity and metabolic parameters of piava freshwater fish (Leporinus obtusidens)
  120. Persistência na água e influência de herbicidas utilizados na lavoura arrozeira sobre a comunidade zooplanctônica de Cladocera, Copepoda e Rotifera
  121. Study of the degradation of the herbicide clomazone in distilled and in irrigated rice field waters using HPLC-DAD and GC-MS
  122. A gas chromatographic method for the determination of the fungicide chlorothalonil in tomatoes and cucumbers and its application to dissipation studies in experimental greenhouses
  123. Acetylcholinesterase enzyme activity in carp brain and muscle after acute exposure to diafuran
  124. EFEITOS DO CARBOFURANO, METSULFUROM-METÍLICO E AZINSULFUROM NA SOBREVIVÊNCIA DE CARPAS E PRODUÇÃO DE ARROZ E PEIXES EM RIZIPISCICULTURA
  125. Effect of clomazone herbicide on biochemical and histological aspects of silver catfish (Rhamdia quelen) and recovery pattern
  126. Desenvolvimento e validação de um método analítico para a determinação de histamina em vinhos utilizando cromatografia líquida de alta eficiência com detecção por fluorescência
  127. Method validation for the analysis of 169 pesticides in soya grain, without clean up, by liquid chromatography–tandem mass spectrometry using positive and negative electrospray ionization
  128. Risk assessment of surface water contamination by herbicide residues: monitoring of propanil degradation in irrigated rice field waters using HPLC-UV and confirmation by GC-MS
  129. Investigation of the occurrence of pesticide residues in rural wells and surface water following application to tobacco
  130. Rice herbicide monitoring in two Brazilian rivers during the rice growing season
  131. Contaminação de águas superficiais por agrotóxicos em função do uso do solo numa microbacia hidrográfica de Agudo, RS
  132. Determinação de bromato em melhoradores de farinha por cromatografia de troca iônica com detecção espectrofotométrica
  133. Poluição das águas por herbicidas utilizados no cultivo do arroz irrigado na região central do estado do Rio Grande do Sul, Brasil: predição teórica e monitoramento
  134. Development and validation of methodology for the determination of residues of organophosphorus pesticides in tomatoes
  135. Development and validation of a high-performance liquid chromatographic procedure for the determination of herbicide residues in surface and agriculture waters
  136. Determination of Residues of the Fungicide Metalaxyl in Water by Solid-Phase Extraction with Gas Chromatography and Nitrogen–Phosphorus Detection
  137. Determination of total arsenic by batch hydride generation atomic absorption spectrometry in injectable drugs containing high levels of Sb(V) as N-methylglucamine antimonate
  138. FLOW INJECTION SPECTROPHOTOMETRIC DETERMINATION OF PROPOXUR WITH DIAZOTIZED 4-AMINOBENZOIC ACID
  139. Determination of antimony(iii) and total antimony by hydride generation atomic absorption spectrometry in samples of injectable drugs used for leishmaniasis treatment
  140. Monitoring of the herbicide clomazone in environmental water samples by solid-phase extraction and high-performance liquid chromatography with ultraviolet detection
  141. Minimization of volatile nitrogen oxides interference in the determination of arsenic by hydride generation atomic absorption spectrometry
  142. Determination of chloride and sulfate in pore solutions of concrete by ion chromatography
  143. Determination of chloride and sulfate in pore solutions of concrete by ion chromatography
  144. Development and validation of a high-performance liquid chromatographic method for the determination of clomazone residues in surface water
  145. Determination of carbofuran in pesticide formulations by flow injection spectrophotometry
  146. Suppressed Ion Chromatographic Determination of Chloride in Concrete
  147. Determination of Amitraz in Cattle Dipping Baths by High-Performance Liquid Chromatography
  148. Determination of acrylic acid in air by using diffusion denuder tubes combined with HPLC technique
  149. Flow Injection Spectrophotometric Determination of Carbofuran in Commercial Pesticides Formulations
  150. Determination of Deltamethrin in Cattle Dipping Baths by High-Performance Liquid Chromatography