Environmental Analysis & Electrochemistry


Innovative water quality sensing solution


Sensirion introduces the new SWT50i sensor, marking its debut in the water quality sensing domain. Leveraging a UV-absorption-based measurement principle, this sensor stands out for its compact size, ease of integration, and cost-effectiveness.


The SWT50i sensor plays a pivotal role in assessing organic substances in water, aiding users in water treatment process control and water quality monitoring. It functions as a photometer, measuring UV-C range absorption, enabling users to track typical organic contaminants and various pollutants, including benzene, antibiotics, pesticides, detergents, plastics, and solvents. Its compact dimensions at 70 x 70 x 70 mm and a flow-through design facilitate seamless integration into challenging configurations, while meeting the highest standards of reliability and cost-efficiency.


With escalating concerns about organic pollutants, climate change, and the resulting water scarcity, the significance of measurement technology is more pronounced than ever. It contributes to enhancing the efficiency of purification processes, monitoring their effectiveness, and ensuring compliance with regulatory standards.


Traditionally, the measurement of such pollutants relied on TOC (total organic carbon) analysers, which are pricey, intricate, and unsuitable for real-time monitoring. The UV absorption method, based on the light-absorbing properties of organic molecules, was another option. While online measuring devices existed, they were primarily designed as probes and came with a hefty price tag.


The SWT50i employs the same UV absorption principle but introduces an entirely new form factor at an attractive price. This enables multi-point measurements within a single system or applications previously deemed impractical due to cost constraints. Furthermore, Sensirion adopts a flow-through sensor design, allowing easy insertion into closed hose systems with smaller diameters (5-15mm) compared to available probes.


The SWT50i is part of Sensirion’s vision of establishing comprehensive sensor networks to enhance process and environmental monitoring. This paves the way for more efficient and resource- conscious use of the precious water resource. Marking Sensirion’s first foray into water quality measurement, this sensor is poised to make water quality assessment accessible in various applications, from production processes and water purification in waterworks to distribution systems and private households.


More information online: ilmt.co/PL/nqZe 61460pr@reply-direct.com Powerful size reduction for diverse materials


The Fritsch PULVERISETTE 19 and PULVERISETTE 19 Large Universal Cutting Mills offer a quick and effortless method for size reduction of a vast range of plastics/polymers and biological materials in both small and large quantities. These mills are particularly useful in applications related to recycling and the environment, production of secondary fuels/RDF in cement manufacturing, power generation, cannabis processing, and more. A stainless steel variant is also available to cater to the needs of the food and pharmaceutical sectors.


The cutting speed of the Fritsch P-19 and P-19 Large Cutting Mills can be optimally adjusted to suit any sample material, thanks to the gradually variable rotational speed setting. Moreover, the grinding chamber has a well-conceived structural design that ensures optimised hygienic cleaning, making it easy to maintain and operate.


The mills come with a variable rotational speed that ranges from 300 – 3000 rpm or 50 – 700 rpm, allowing for optimised torque. They also have a large feed size capacity of up to 70x80 resp. 120x85 mm and a high throughput rate of up to 60/85 l/h. The final fineness can be varied through the use of sieve cassettes ranging from 0.1 – 20 mm. The three-part housing and plug-in rotor design make maintenance easy and tool-free. The mills are compliant with GMP and RoHS regulations and are suitable for comminution of long solids such as cannabis, straw, or foils without the need for pre-crushing.


The Fritsch P-19 and P-19 Large Cutting Mills utilise a flexible modular principle that allows you to customise the mill to suit your specific sample material. This is achieved by simply changing the rotor, and selecting from a range of rotors and fixed knives with different cutting geometries made from various materials. You can also choose the sieve cassettes to determine the final fineness of your samples, while different funnels, collecting vessels, and stands made of different materials enable further configuration for your specific applications.


To enhance the feeding and cleaning process, you can connect the mill to a Fritsch high-performance or small volume Cyclone separator. This connection results in faster throughput, minimised thermal load of the samples, and higher final fineness.


View the video to see the unique features of the Fritsch Cutting Mills and how they operate, providing a clear demonstration of their capabilities: ilmt.co/PL/Yvwo More information online: ilmt.co/PL/jx9L and ilmt.co/PL/RNwb


60144pr@reply-direct.com Electrode evolution: redefi ning innovation and design


Sentek Ltd, a pioneer in laboratory and testing equipment, is proud to unveil an exciting transformation for its electrodes, offering a fresh aesthetic that maintains the brand’s commitment to quality and dependability. These new electrodes have been meticulously engineered to embody the premium qualities that define Sentek’s offerings, all wrapped in a sleek and modern design. Refillable electrodes are ready to use straightaway without the need to refill or remove dried KCl solution through zero-leakage technology on a fully remodelled refill seal.


A hallmark of Sentek’s product philosophy has always been its focus on material excellence. The combination of a robust ABS barrel and the flexible, durable properties of TPE underscores the company’s commitment to providing a reliable and easy-to-maintain solution. The electrode range now boasts sensor information and specifications conveniently displayed on the stem, making identification effortless and enhancing usability.


This enhancement exemplifies Sentek’s meticulous attention to detail and unwavering dedication to its customers. The blend of form and function empowers researchers, practitioners, and educators alike, enabling them to undertake critical research, routine measurements, or classroom demonstrations with confidence. Sentek is delighted to offer these next generation electrodes at the same attractive price.


“We’re thrilled to be launching this exciting new product upgrade which provides our customers with a stylish and reliable sensor” said Kenny Petrie, Sentek’s Founder and Technical Director. “At our core, we constantly strive to provide our customers with exceptional quality at a reasonable price, and the features of this new design achieves just that.”


To be among the first to experience the innovation, customers are encouraged to contact the Sentek team for pre-orders. Orders will commence shipping later this year, with the refreshed cap and refill seal design extending across Sentek’s entire branded electrode range.


More information online: ilmt.co/PL/LezD and ilmt.co/PL/9jb6 60981pr@reply-direct.com


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