37 Environmental Analysis & Electrochemistry Microwave Assisted Extraction of Pesticides from Environmental Samples
Pesticides are extensively used in modern agriculture and many governments require their analysis in environmental samples. In addition some pesticides belong to the class of persistent organic pollutants (POPs). The manufacture, sale and use of products containing POPs in the UK is banned however some might be present through unintentional trace contamination.
The analysis of pesticides is described in EPA 3546 that outlines the procedure for extracting water insoluble or slightly water-soluble organic compounds from soils, clays, sediments, sludges, and solid wastes. EPA 3546 is also a specific method for Microwave Assisted Solvent Extraction (MASE), a well established sample preparation technique that enables extractions with reduced solvent volume and time.
A new Milestone application report from Analytix presents a guideline for the extraction of the priority pesticides from both standard reference materials and spiked materials using the official method EPA 3546. The Milestone ETHOS X microwave extraction system equipped with FastEX-24 rotor was used in this study to prove its efficacy in the extraction of pesticides from environmental matrices
The application report describes the extraction of target compounds in 40 minutes from 24 soil samples simultaneously with 30 g of sample per vessel. Full recovery data is included and demonstrates that the potential problems of contamination, memory effects, and cleaning are eliminated due to the use of disposable glass vials.
The FastEX-24 rotor uses disposable glass vials with contactless temperature control in all positions. This makes the system a unique and innovative solution for the extraction of contaminants from soils, providing unmatched ease of use and low running costs.
More information online:
ilmt.co/PL/gJ3J 52451pr@reply-direct.com
TOC Analysis of Solid and Liquid Samples in One Device
With the multi N/C duo, Analytik Jena presents an analyser that considerably simplifies TOC analysis (total organic carbon). For the first time, it is possible to analyse solid and liquid samples using one single device highly automated and without laborious equipment conversion.
The multi N/C duo is designed particularly for labs in the environmental sector that see themselves confronted with an increasing number of solid and liquid samples. Automation and high quality of analysis are brought together harmoniously by the device with additional ease of use for the operator. The instrument is the ideal solution for TOC analysis of contaminated soil, biowaste, dust, ashes and other solid environmental samples as well as water samples of any kind.
Thanks to its high degree of automation, the new TOC analyser of modular design can process up to 48 solid samples in less than four hours. Add to this the highly automated and clean handling of liquid samples, with up to 146 samples per sequence and parallel purge and analysis in NPOC operations. Switching between the solid and liquid mode takes only a few mouse clicks. In order to measure solid matter, the multi N/C duo uses a robust, catalyst-free oxidation technique, which makes a considerable contribution towards reduced running costs. Furthermore, low-wear ceramic components make the combustion system of the analyser particularly low-maintenance. Solid sample weights in the gram range compensate for the inhomogeneity of samples, thus increasing the reproducibility of the analysis results.
More information online:
ilmt.co/PL/nAwJ 52604pr@reply-direct.com ADVERTORIAL New Monitor/Controller Series Covers the Widest Range of Water Related Applications
Myron L® Company’s new 900 Series Monitor/Controller combines fl exibility, accuracy and reliability. It is the ideal instrument for even the most demanding water treatment applications.
Measurement capabilities include: Conductivity, Resistivity, Salinity, TDS, pH, ORP, Temperature, mVDC, Flow, and % Rejection. It includes a 4-20 mA input. Standard outputs are a 0-10 VDC recorder output, relay output. Available optional outputs include a 4-20 mA, RS-485 output, as well as 2 additional Relays.
Ultrapen PTBT Series
Smartphone/Tablet Compatible Tester Compatible with
Android and iOS Devices. 900 Series
Conductivity, Resistivity, TDS, pH, ORP, Salinity, ISE, Flow,
Pressure, with Touch Screen LCD +more!
The instrument’s display can show from 1 to 4 measurements simultaneously. Sensor setup allows the user to eliminate error due to cable length and enter custom cell constants for conductivity sensors. Calibration is electronic. Its 3.5” touchscreen and intuitive GUI make it simple set up, simple to use and simple to adapt to your specifi c needs.
The Myron L® Company 900: A high level performer for applications where high level performance is an absolute requirement.
More information online:
ilmt.co/PL/yg6k 43827pr@reply-direct.com
www.myronl.com 760-438-2021
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