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pesticides

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Palabra clave:'pesticides'

Mostrando 1-30 of 170 resultados para "pesticides" en el plazo de Contenido de la página

Fluorinated Building Blocks

With a vast offering of fluorinated building blocks, such as, trifluoromethyl, difluoromethyl, triflate, and pentafluorosulfanyl substituents for your toolkit, we make it even easier to discover your target compounds.

Neonicotinoids Pesticides and Metabolites

Sigma-Aldrich.com presents an article concerning Neonicotinoids Pesticides and Metabolites.

Pesticides and Mycotoxins in Cannabis/Hemp

Stringent quality testing for cannabis products includes analysis for residual pesticides and mycotoxins using LC-MS/MS and GC-MS/MS.

GC Analysis of Agricultural Pesticides (Standard) on SLB®-5ms

EU and US Legislation on Pesticides - World Standards Day 2021

To ensure the safety of food and the environment, regulations are tightening worldwide regarding application of pesticides/plant protection products. This webinar will give an overview about the current ways pesticides are being regulated in the EU and U.S.

Extraction and Analysis of Agricultural Pesticides from Oranges Using the “QuEChERS” Method

Comparison of QuEChERS Products for the Extraction of Planar Pesticides from Spinach

Supel™ QuE Verde combines a novel carbon with zirconia coated silica (Z-Sep+) to provide an optimum balance between planar pesticide recovery and color removal.

Pesticide Standards

Explore our full lineup of pesticide reference materials: various quality grades including PESTANAL® and TraceCERT®for food, environment analysis.

Pesticide Classes and Exposure Hazards

Pesticide classes and health hazards from exposure to commercially available pesticides, herbicides, and fungicides.

Extraction of Permethrin Pesticides from Spinach Using QuEChERS Methodology with Automated Shaking

HPLC Analysis of Urea, Carbamate, Triazine, Aniline Pesticides on Discovery® C18

Reduce Matrix Background and Improve Overall Analyte Recovery for the Analysis of Pesticides in Beef Kidney

Supel QuE Z-Sep+ was successfully demonstrated for cleanup of beef kidney matrix, providing reduced background and less interference in the GC-MS analysis of the target pesticides

US EPA Method 8081: GC Analysis of Organochlorine Pesticides on Equity®-5

Analysis of Pesticides in Baby Food by Solid Phase Microextraction (SPME) Using a New Overcoated Fiber

A direct immersion SPME method using a new overcoated SPME fiber was developed for the extraction of pesticides from pureed prune baby food.

Extraction and Analysis of Neonicotinoid Pesticides from Flower Blossoms Using Supel™ QuE and Ascentis® Express

Improved Recoveries and Lower Background for GC/MS/MS and LC/MS/MS Analysis of Pesticides in Green Tea

A procedure for cleanup of green tea extracts provides low background and allowed for the analysis of more pesticides at lower levels than QuEChERS. Uses less solvents and no toluene.

US EPA Method 632: HPLC Analysis of Pesticides on Ascentis® C18

-methylcarbamate 10 μg/mL; Diuron; Propham; Siduron; Methiocarb, analytical standard; Linuron 10 μg/mL; Swep 10 μg/mL; Chlorpropham 10 μg/mL; Barban; Neburon

QuEChERS Method for Pesticide Residue Analysis

QuEChERS method for pesticide residue analysis requires only small quantities of solvent and is capable of generating recoveries of 70-120% with RSDs <5% for a wide range of compounds.

Complete Workflow for the Analysis of California List of Pesticides in Cannabis by LC-MS/MS and GC-MS/MS

To show product safety, it is mandatory to test cannabis flowers for the presence of pesticides. In this article, we show a complete workflow for sample preparation and analysis of cannabis for the pesticides registered in California, by LC-MS/MS and

Analysis of California Cannabis List of Pesticides, Mycotoxins, and Pyrethrins Using Ascentis® Express Biphenyl Column

Cannabis testing regulations include analysis of purity, potency, and contaminants. Learn more about analysis of cannabis for pesticides, mycotoxins, and pyrethrins registered in California using Ascentis® Express Biphenyl

Foodborne Pesticide Analysis: Going Beyond the Dirty Dozen

Get a better understanding of the various global regulations around pesticide analysis in food science and the right product for each method. Discover pesticide residue tests and applications from Fipronil for eggs to pesticides in cannabis.

Dual-Column GC Analysis of Organochlorine Pesticides on SLB®-5ms and SLB®-35ms

The primary column is used to determine presence of the target analytes in the sample; the secondary column of a different selectivity confirms whether a positive match.

Dual-Column GC Analysis of Organochlorine Pesticides on SLB®-5ms and SLB®-35ms

The primary column is used to determine presence of the target analytes in the sample; the secondary column of a different selectivity confirms whether a positive match.

Analysis of Pesticides in Turmeric Powder by LC/MS/MS and GC/MS/MS after Cleanup with Dual-Layer SPE Cartridge

Pesticide residue testing of turmeric and other (dried) spices is challenging due to their complex compositions and high matrix. An efficient SPE clean-up can be achieved by a new Dual-layer cartridge.

Pesticide Standards For Food & Environmental Analysis

Analytical Standards & Certified Reference Materials

New Preparation Approach for Improved Pesticide Analysis of Challenging Samples

This webinar will introduce new sample preparation approaches leading to improved clean-up and recovery of pesticides in these challenging matrices.

LC/MS/MS Analysis of Neonicotinoid Pesticides in Dandelion Blossoms on Ascentis® Express C18 after Dispersive SPE (QuEChERS) using Supel™ QuE

US EPA Method 8141: GC Analysis of Organophosphorus Pesticides (OP-Pest) on Equity®-5, NPD Detection

analytical standard; Tokuthion, technical grade, pkg of 50 mg; Crotoxyphos; Phorate; Azinphos-ethyl; Diazinon; Azinphos-methyl; Demeton-O; Dimethoate; Chlorpyrifos-methyl

New Preparation Approach for Improved Pesticide Analysis of Challenging Samples

This webinar will introduce new sample preparation approaches leading to improved clean-up and recovery of pesticides in these challenging matrices.

New Preparation Approach for Improved Pesticide Analysis of Challenging Samples

This webinar will introduce new sample preparation approaches leading to improved clean-up and recovery of pesticides in these challenging matrices.

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