SciLabware's Quickfit range has introduced a new QWS4 Water Still. Manufactured in the UK, the QWS4Â is the only water still on the market made with high-quality Pyrex glass components - for its boiler and condenser.
The QWS4 produces around 4 litres/hour of pyrogen-free* distilled water. Its chromium plated 3kWÂ heating element is fitted with two thermostats to protect from overheating in the e...
"Pure" water is used in all types of laboratories for a range of uses - from making up calibration standards to cleaning and even in the rinse cycle in some laboratory glasswashers for a pure clean. There are different types of purified water available - but what is the difference?
[caption id="attachment_6355" align="aligncenter" width="300"] Distilled or deionised water? What's the differe...
Purified water from distillation, deionisation or reverse osmomsis purification systems will usually have an acidic pH.
But why is the pH of distilled water not neutral pH 7?
This does not mean the water is contaminated - we've taken a look at the chemistry that explains the acidity.
[caption id="attachment_8125" align="aligncenter" width="374"] Deionised (DI) or distilled water often has an...
When any of the Aquatron stills have been used to produce distilled water directly from a mains water supply, there will inevitably be a build-up of scale in the boiler and on the heating element(s). To obtain optimum performance from the still the scale should be removed on a regular basis. The time span between cleaning depends entirely upon the hardness of the water supply. In very hard 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...
