21 Environmental Analysis & Electrochemistry
Enhancing environmental contaminant analysis
Advanced handheld solution for in-situ water quality analysis
The 6PFCE features a comprehensive suite of in-situ water quality analysis tools designed to replace more costly and less convenient laboratory equipment.
A true one-handed instrument, the 6PFCE delivers Conductivity, Resistivity, TDS, pH, ORP, Free Chlorine Equivalent (FCE™), and Temperature readings quickly and easily with the press of a button.
Unlike other similar meters, 6PFCE Conductivity and TDS functions allow you to select the solution type used to model the solution under test: KCl; NaCl; Myron L’s own 442 Natural Water™ Standard; or USER, programmable by you to model a known solution. The result is benchtop accuracy of ±1% of reading in a handheld instrument. Accuracy increases to ±.1% of reading at calibration point. Temperature compensation is automatic to 25°C or can be disabled by the user as required. Autoranging capabilities provide increased reading resolution across a broad range of applications.
pH readings are also temperature compensated, and you can choose to perform a 1-, 2-, or 3-point calibration depending on the range of samples measured to achieve ±.01pH accuracy. The pH sensor is of a proprietary construction and includes a large potassium chloride solution reservoir for long life. Myron L pH sensors are also user replaceable.
ORP measurements utilise a 99.9% pure platinum electrode and a reference junction that is shared with the pH sensor. 6PFCE ORP reading accuracy is ±1 millivolt.
Environmental monitoring plays a vital role in safeguarding natural resources and ensuring sustainability. The latest advancements in elemental analysis and solvent extraction technologies allow laboratories to rapidly and accurately identify contaminants, supporting safety and remediation efforts.
Elemental analysis, particularly using high- temperature combustion, enables labs to measure key soil quality indicators like carbon, hydrogen, nitrogen, and sulphur. These analyses are critical for pollution monitoring, ecological research, and regulatory compliance.
Velp’s EMA 502 and CN 802 elemental analysers are designed to meet the increasing demand for accurate and versatile analysis of carbon, hydrogen, nitrogen, and oxygen (CHNO). The CN 802 is ideal for analysing carbon and nitrogen in heterogeneous or low-concentration samples, handling sample weights up to 1 g. It’s equipped with advanced features like a Peltier cooler trap and a halogen adsorber, making it perfect for long-term routine Total Organic Carbon (TOC) analysis.
The EMA 502, a micro elemental analyser, offers simultaneous analysis of carbon, hydrogen, nitrogen, and sulphur in samples weighing up to 100 mg. Known for its sensitivity, flexibility, and user-friendly design, the EMA 502 provides reliable multi-element analysis with improved efficiency, making it a versatile choice for laboratories that need high throughput and sporadic TOC analysis.
Solvent extraction plays a crucial role in isolating and concentrating target analytes like oils, grease, and hydrocarbons from environmental samples. Techniques such as Soxhlet extraction are widely used, but innovations like Randall extraction (hot solvent extraction) offer faster and more efficient results. This method enhances recovery rates while minimising thermal degradation.
Velp’s SER 158 solvent extractor utilises Randall extraction to provide precise, reproducible results up to five times faster than traditional methods. With a titanium condenser and internal recovery tank, it reduces water consumption by over 60% and recovers more than 90% of the solvent, lowering operational costs and promoting laboratory sustainability.
Velp’s comprehensive solutions empower laboratories to enhance environmental analysis workflows, offering unmatched throughput, safety, and precision.
More information online:
ilmt.co/PL/VqjR and
ilmt.co/PL/65MX
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In addition, the 6PFCE features a groundbreaking new way to determine Free Available Chlorine based on a predictive ORP value. Empirical readings of the chemical activity of a solution are made without the hassle and subjectivity of colorimetric and test-strip methods.
Calibration and maintenance are simple, so the 6PFCE can be serviced by the user. The 6PFCE is also IP67 dust-tight and waterproof, NEMA 6 submersible, and buoyant. Plus, Myron L service and technical support are included for the life of the product.
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ilmt.co/PL/W95n 63723pr@reply-direct.com Highly sensitive targeted and non-targeted HPLC-MS PFAS analysis
Per- and polyfluoroalkyl substances (PFAS) are persistent environmental pollutants known for their long lifetime and mobility. Their stability leads to accumulation in groundwater and soil, with proven harmful health effects. This technical note presents a method for identifying and quantifying PFAS using a YMC-Triart C18 HPLC column. This column, based on a robust hybrid silica particle, offers enhanced separation of isomers and improved analytical performance when coupled with mass spectrometry.
PFAS standards could be well resolved by the YMC-Triart column. Notably, partial separation of PFOS and PFHxS isomers within 10 seconds facilitated fragmentation pattern analysis for structural elucidation.
To evaluate performance in complex matrices, a soil extract from a contaminated site (Brilon-Scharfenberg, Germany; from the scientific publication of Zweigle et al. was analysed. Total ion chromatograms (TICs) from triplicate measurements revealed consistent profiles, despite the high matrix complexity.
The YMC-Triart C18 column achieved effective separation of PFAS, including improved partial resolution of isomers compared to Zweigle et al.. For instance, SF5(CF2)9SO3 isomers were separated, enabling the acquisition of distinct fragmentation spectra. The larger fragments in longer retention indicate an exclusively linear isomer. Specifically, the shorter retention time and the smaller fragments suggest a branched isomer or a differently positioned SF5-group.
The YMC-Triart C18 column demonstrates robust performance for PFAS analysis. It delivers: Efficient separation of key PFAS standards with linear quantification; Reproducible results in complex matrices, such as soil extracts; Improved isomer separation, enabling structural elucidation through distinct fragmentation patterns.
The column provides a reliable and enhanced approach to targeted and non-targeted PFAS analysis, supporting environmental monitoring and regulatory compliance.
Download the Technical Note for full details:
ilmt.co/PL/DRm4 More information online:
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Advert ECH Half A4 = 180 x 125 mm
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H S analyzers for liquids, gases, solids2 Standard-compliant and simple operation without sample pre-treatment
Sulfimax GX Lab
· For aqueous samples and gases
· No sample pre-treatement · Autosampler for liquids with up to 40 sample positions
H S Headspace Module2
· Extension module for H S analyzer Sulfimax GX2
· For solid, viscous and oil samples
Sulfimax GX online GAS Sulfimax GX online WATER
· Online H S measurement 2 in gases
· Sample aspiration from up to 100 m
· Rinsing run automatically
ECH Elektrochemie Halle GmbH Headquarters in Germany +49 (0) 345 2795700
info@ech.de www.ech.de
ECH Scientific Ltd. Global Sales Division in UK +44 (0) 1525 404747
info@echscientific.com
www.echscientific.com
For more information scan the code
· Online sulphide measurement directly in the liquid phase
· Basis for H S-regulated 2 wastewater treatment
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