Hotplates or combined hotplate stirrers are used in most laboratories for basic heating and stirring applications.
Many models are offered with either a ceramic, ceramic coated or aluminium top plate. But what is the difference?
[caption id="attachment_6167" align="aligncenter" width="245"] Hotplates with a ceramic or an aluminium top - but how do I choose which type I need?[/caption]
Ceram...
[caption id="attachment_2586" align="aligncenter" width="285"] Jenway 370 pH meter[/caption]
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Many pH meters also have a separate reading range which gives results in mV. This can be used for a range of applications.
1.) Checking your pH electrode calibration. Most meters automate the calibration of pH which makes it simple to perform and ensures consistency in results. However, when issues ar...
The W4000 Bibby Merit Water Still is a great option for labs needing small quantities of distilled water.
The still connects to a basic mains water supply and allows you to generate 4L per hour of distilled water compliant with European Pharmacopoeia and ASTM Type 4
[caption id="attachment_11833" align="alignleft" width="300"] A fully assembled W4000 Water Still[/caption]
The still arr...
Stuart have launched a new vortex mixer, the mini SA6 model with a robust casing and variable speed control, this mini unit is ideal for chemical and bioscience laboratories alike.
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Vortex mixers are widely used in bioscience laboratories, and are particularly useful for life science researchers studying cell cultures and microbiology.
Chemical labs also rely on vortex mixers everyday...
The team at Jenway have described a method to determine calcium level in milk samples using their PFP7 Flame Photometer. Calcium is usually present at about 120mg per 100ml milk, or 0.11%, but this varies with the type.
The method and equipment required are summarized below to test milk samples for calcium content.
[caption id="attachment_10449" align="aligncenter" width="422"] ...
Melting point tests provide a fast and simple method to verify the purity of solid samples in the lab after synthesis or in manufacturing as a quality control check.
Preparing the samples correctly will ensure results are accurate and comparable. We've taken a look at the proper way to prepare samples for melting point analysis below.
[caption id="attachment_10413" align="aligncenter" wid...
To replace the very popular Jenway 370 handheld pH meter, two new models have recently been released.
[caption id="attachment_10353" align="aligncenter" width="621"] The Jenway 370 (left) has now been replaced by the Jenway 550 (centre) and the Jenway 570 (right) pH meters[/caption]
The Jenway 550 and 570 models offer the same portable, flexible and low cost handheld meters we expect, wit...
How can I measure the caffeine content in drinks? Caffeine is a naturally occurring molecule found in various plants worldwide, and found in beverages such as tea, coffee and soft drinks. [caption id="attachment_9540" align="aligncenter" width="290"] A wide variety of drinks contain caffeine - UV spectroscopy allows you to measure the amount present[/caption] The amount of caffeine present i...
Q: I need a roller mixer, but our lab works with tubes and bottles in different sizes - what would you recommend? A: The Stuart range of roller mixers would be ideal. These have recently been updated, and are now more flexible than ever - letting you use one unit to mix small centrifuge tubes right through to larger bottles [caption id="attachment_7537" align="aligncenter" width="300"] Th...
Starter kits are a great option to make sure that everything you need to get started is included in one box, making it easy for you to begin work quickly. We are big fans of starter kits, from our COD starter package to our vacuum filtration starter kit so we're glad to hear that Stuart's Undergrad hotplate stirrer units are now available as a kit which includes the SCT1 controller and all t...
Stuart Equipment has introduced a new range of heating blocks designed as accessories for the company's Undergrad range of hotplates and hotplate stirrers.
[caption id="attachment_6135" align="aligncenter" width="300"] Stuart drysyn heating blocks[/caption]
Developed along with Drysyn, a leading supplier of heating blocks, the new Stuart products enable customers to effectively ...
We get a lot of enquiries about the  Electrothermal MC810B Digital Heating Controller, specifically concerning its functionality and compatibility with other Electrothermal products. This controller can be used in 3 ways:
(1) In On/Off mode with the hysteresis loop controlling power switching.
(2) As a PID (Proportional, Integrated, Derivative) controller.
(3) As a temperature measuring ...
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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...
