life sciences
20 Issue 4 2020
Locally manufactured incubators with economic benefits T
he locally manufactured IncoShake range of shaking incubators from Labotec is durable and offers a good cost/ performance ratio. Since there is a choice between units with various temperature combination possibilities, the range is ideal for a wide variety of laboratory experimentation in fields such as molecular biology, plant and animal cell culture and microbiology.
optimum reliability and micro-processorbased speed control for high stability with digital indication of rpm. The high-quality magnetic door seal will minimise heat loss, and they are supplied with one chrome plated shelf and a shaking platform (size 480mm x 380mm) with four adjustable clamping bars to take a 30kg load capacity.
Incoshake entry level solution If you are looking for an entry level solution where sample agitation is required at a controlled temperature, the IncoShake 14-litre shaking incubator is ideal. With rotational speeds from 10 - 250rpm, stroke 25mm, it operates at a temperature range ambient +7°C to 60°C and a high accuracy
Orbital shaking incubator solution The IncoShake orbital shaking incubators are comprised of two models. The Model 353 has a temperature range ambient +7°C to 60°C, while Model 355, with a temperature range from 0°C to 60°C, also offers a reliable refrigeration system with high quality compressor and components as well as an automatic defrost function. Both models offer electronic PID temperature control with digital indication of set and process value, a high accuracy pt 100 temperature sensor, solid state control relay for
LABOTEC (PTY) LTD JHB: (011) 315 5434 CPT: (021) 531 7660 DBN: (031) 566 4870 Fax: (011) 315 5882 sales@labotec.co.za www.labotec.co.za
Elga launches the Purelab Quest water purification system
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lga LabWater, a Veolia Water Technologies company, announces the launch of the Purelab Quest, a laboratory water system that delivers water for the widest range of lab applications, offering unmatched value and an outstanding user experience. Prestige labs in academia, government and industry will all benefit from Purelab Quest contribution to research. The Purelab Quest’s unique design dispenses all three types of lab water (ultrapure 18.2MΩ-cm, pure Type II & general laboratory grade Type III) directly from a tap water input. From only one unit, the Purelab Quest produces water for applications from HPLC & PCR to buffer preparation and glassware washing. The Purelab Quest is highly compact, intuitive to use, easy to install, uses
pt 100 temperature sensor for monitoring. While its load capacity of 8kg is less than the above models, the counterbalanced drive system ensures smooth running. This 14-litre model is also equipped with a microprocessor-based speed control for high stability with digital indication of r.p.m, 120-minute timer with infinity override position for continuous operation if required and an electronic PID temperature control with digital indication of set and process value. The standard unit is supplied with platform (size 400mm x 300mm) and four adjustable clamping bars. A powerful air circulation system creates a uniform heating effect in the working chamber and the process can be viewed through a viewing window with mounted in lift-up cover.
reclaimed materials and offers remote monitoring through Aquavista, Veolia’s cloud-based digital solution. With multiple purity sensors, inbuilt periodic re-circulation and a testing regime which covered over 150 000 dispensing cycles, Purelab Quest provides lab water that is beyond question for research labs worldwide. Mope Alo, Product Manager at Elga LabWater, commented: “Water is the lifeblood of the life science industry, it is central to reproducibility, integrity and data accuracy. Purelab Quest contributes to the many challenges faced by today’s life science labs and research teams. The Purelab Quest produces all types of laboratory water directly from a tap water input. It has been highly tested, uses proven designs and offers unrivalled value and reliability. Researchers have given feedback that it is intuitive, effortless and ingenious.”
LABOTEC (PTY) LTD JHB: (011) 315 5434 CPT: (021) 531 7660 DBN: (031) 566 4870 Fax: (011) 315 5882 sales@labotec.co.za www.labotec.co.za
Measuring dissolved oxygen (DO) Free white paper compares the pros and cons of various standard methods
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hat is dissolved oxygen (DO)? Why is this parameter so relevant in, for example, water analysis, and which technologies are used to determine it? In a free white paper, Dr Sabrina Gschwind, Junior Product Manager Titration at Metrohm AG takes a comprehensive look at dissolved oxygen and compares the advantages and disadvantages of the methods commonly used to determine this parameter. Titration vs. direct measurement Dissolved oxygen is a term describing the amount of oxygen molecules (O2) which are dissolved in a liquid phase under certain conditions. In the white paper, two different methods for the analysis of dissolved oxygen, titration and direct measurement, are compared and contrasted to help analysts determine which method is more suitable for their specific applications. Here, the focus is primarily on the determination of dissolved O2 in water. However, the same principle applies for other liquid phases
such as non-alcoholic or alcoholic beverages. The following topics are addressed by the white paper: • What is dissolved oxygen? • How to determine the dissolved oxygen content in water • Winkler titration (as per ISO 5813, EN 25813, ASTM D888, EN ISO 5815-1, ISO 5815-2) • Dissolved oxygen measurement with electrochemical sensors (as per EN ISO 5814, ASTM D6764, EN ISO 5815-1, ISO 5815-2) • Measurement using an optical sensor (as per ISO 17289) • Pros and cons of the various techniques • References (scientific literature, plus norms and standards). To download the whitepaper, Determining dissolved oxygen in water: Titration or direct measurement? go to https://bit.ly/3cG7XDI in your browser.
METROHM SA (PTY) LTD Tel: (011) 656 1918 CPT: (021) 852 0213 DBN: (031) 265 0067 Fax: (011) 656 2698 076 643 7113 info@metrohm.co.za www.metrohm.co.za
