Whilst most commonly associated with the monitoring of biochemical oxygen demand (BOD), the OxiTop system can be used for many types of respirometric testing including OECD biodegradability tests, soil respiration and biogas testing. The classical OxiTop heads have been around for many years and are tried and tested. This year, they have been modernised with two new groups of heads being releas...
The new BD600 BOD measurement system from Lovibond replaced their Oxidirect system in 2015 and has proved to be a popular tool amongst users with it's handy remote control and built in graph features. But did you know that the system is also mercury free? [caption id="attachment_6963" align="aligncenter" width="300"] The new BD600 BOD system from Lovibond[/caption] The modern integral ...
The Oxidirect BOD measurement system has been replaced by Lovibond's new BD600 system, which has a range of additional features [caption id="attachment_6963" align="aligncenter" width="501"] The new BD600 BOD system from Lovibond[/caption] Principle of measurement The BD600 BOD system offers a manometric, respirometric BOD measurement. The oxygen consumed by microorganisms in a clo...
Ask the expert:Â What are the differences between Chemical Oxygen Demand (COD) and Biological Oxygen Demand (BOD)?
Answer: Both COD and BOD test methods aim to give an indication of the amount of pollution in a water sample. COD is the amount of oxygen required to chemically breakdown the pollutants. Whereas BOD is the amount of oxygen required to do this biologically through micro-organisms. T...
[caption id="" align="aligncenter" width="263"] Cooled incubator with glass door[/caption]
The TC series of thermostatically controlled cabinets or cooled incubators, from Tintometer is used for continuous temperature control over a range of 2 °C to 40 °C. This makes them ideal for a wide range of different applications in industrial and research laboratories. In particular they are ideal fo...
A little bit of light reading about Jospeh Williams Lovibond..
[caption id="attachment_4476" align="aligncenter" width="165"] Joseph Williams Lovibond 1833-1918[/caption]
Joseph Williams Lovibond (1833–1918) was a British brewer who developed the world's first practical colorimeter as a means of ensuring the high quality of his beer. He was the originator of the Degrees Lovibond scale.
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Jenway have recently updated their dissolved oxygen probes. To ensure you get the correct probe please read the following:
Jenway have an extensive range of dissolved oxygen probes suitable for portable or bench dissolved oxygen meters. The probes for the dissolved oxygen meters have all been updated in order to unify the range.
The dissolved oxygen probes have been redesigned so that the...
Have fresh seed on demand every day with no handling of wastewater.
Convenient, fast and economical BOD analysis with consistent results. Each capsule contains specialized microbial cultures ideal for use in a broad range of areas involving degradation of industrial and municipal waste.
[caption id="attachment_785" align="alignright" width="144"] Polyseed Bottle[/caption]
Features and Be...
[caption id="attachment_496" align="alignright" width="146"] Hach BODTrakII[/caption]
The BODTrakTM II Apparatus measures Biochemical Oxygen Demand (BOD) using the respirometric method. The BOD test measures the quantity of oxygen consumed by bacteria that oxidize organic matter in a water sample. A pressure sensor monitors air pressure in the sample bottle and a stir bar continually mixes t...
A number of customers have asked us for a definition of COD or Chemical Oxygen Demand which is detailed below.
Chemical Oxygen Demand (COD)
Chemical oxygen demand (COD) is a measure of the capacity of water to consume oxygen during the decomposition of organic matter and the oxidation of inorganic chemicals such as Ammonia and nitrite. COD measurements are commonly made on samples of waste wate...
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I came across your article about "DPD Tablets" on Camlab Info, and it's a valuable resource for anyone seeking information about water testing and analysis using DPD tablets. Your explanation of their usage and significance in water quality monitoring is quite informative.
This article on nanocolor tube tests is a gem for analytical enthusiasts. The idea of zero calibration is intriguing, and your detailed explanation makes it accessible. The step-by-step process helps demystify the technique for beginners like me. The use cases you've highlighted, particularly in...
Grant have introduced the new Controlled Rate Freeze Thaw (CRFT), which is a liquid nitrogen and cryogen free controlled rate freeze and thaw system for cryopreservation in a wide range of applications. Cryopreservation is a process where biological materials such as cells, tissues...
A dipslide is a means of testing the microbial content of liquids. This is a common method of monitoring and measuring microbial activity within many systems and commonly cooling systems. Usually the use of a dipslide is the first line of defence for the testing of microbial issues that could be...
Purchasing items using donated funds without the burden of VAT will now save many Millions of pounds each year which can be put to better use in advancing scientific knowledge to provide new treatments and cures that will shape the medicines of the future.
Working with pressure/vacuum conditions in the lab is common but not all products are designed to withstand this. Products with appropriate geometry and wall thickness are suitable for working safely with pressure. For example, filtering flasks, desiccators, or flat flange vessels, as well as...
