DPD tablets (diethyl-p-phenylenediamine) are used to determine chlorine in water and can also be used to test bromine, iodine and other disinfectants. These tablets come in four different types and are used alone or in combination, depending on your measurement parameter. The convenience of using a rapid version is that it dissolves quickly but is used as a visual test only.
Image of DPD ta...
Palintest have launched a line of new handheld water testing photometers featuring the same tried and tested Palintest technology as predecessors but with new and improved features. The Lumiso photometers are available as single parameter meters and also as multi-parameter pool testing meters. They are light-weight, simple to use and ideal for performing water testing anywhere. Explore the ran...
Instachlor tablets by Palintest are rapidly dissolving chlorine tablets that can be used for a number of disinfection and water treatment applications. They contain sodium dichloroisocyanurate (NaDCC) which is an organic chlorine donor that when added to water, releases a given amount of chlorine into solution. The applications of Instachlor are wide ranging from personal water disinfection for...
Photometers should be regularly cleaned to ensure that your instrument is reading correctly and is not affected by dust or watermarks.
To clean a compact photometer, place a small amount of anti-static cleaning foam on to a lint-free cloth and wipe the instrument.
For multiparameter photometers, you should clean several parts of your instrument. To clean, place a small amount of anti-static c...
Building on the simplicity of the Kemio disinfection, Palintest have released a new version of the Kemio called the Kemio Heavy Metals for simple and quick determination of Lead (2 - 100 µg/L) and Cadmium (0.2 - 10 µg/L) levels in water. The Kemio is a portable multi-parameter instrument that uses special sensor strips to determine the levels of set chemicals within your water sample and due ...
Palintest have announced that the ChloroSense, ChlordioXense, ChlordioX Plus, ChloroSense HR and PAASense units have been discontinued and have been replaced by the Kemio. The Kemio is a multi-parameter next generation instrument capable of measuring chlorine (free and total), chlorine dioxide, chlorite and peracetic acid (PAA) in water. You can read our post on the feature of the Kemio here.Â
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Measuring high levels of free chlorine can be problematic; Colorimeters used to test free chlorine are based on a colour change test; The DPD 1 (N,N-diethyl-p-phenylenediamine) method for residual chlorine was first introduced by Palin in 1957. Over the years it has become the most widely used method for determining free chlorine in water and wastewater. Hach introduced its first Chlorine te...
Q: Our turbidity meter comes supplied with a bottle of silicone oil. What is this for? Why is it important in the test?
[caption id="attachment_11631" align="aligncenter" width="163"] Silicone oil is often supplied with turbidity meters, but what is it used for, and why is it important to the test?[/caption]
A: The silicone oil is used to ensure the glass vial used in the turbidity me...
The pH or acidity of the soil can be a key factor in ensuring strong and healthy plant growth.
While it is true that specific plants vary in the soil pH they prefer, there are some factors which are affected by soil pH universally across all plants.
We have taken a look at how soil pH affects plant growth and how you can test soil pH levels.
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In order to ensure optimum water quality for the huge variety of aquatic species they house, ZSL London Zoo makes use of the Palintest Photometer 7100.
By monitoring chlorine, alkalinity, phosphate, ammonia, nitrite, potassium and pH in one unit the staff ensure the water is just right for each of the species housed.
[caption id="attachment_10795" align="aligncenter" width="346"] The 7100...
When fresh produce like salad products are processed, the disinfection is often performed by adding hypochlorite solution to the wash water.
Several standards state this must be maintained at 50mg/L or greater concentration - a very high level in terms of measurement for quality control.
Palintest offer two methods which are able to detect chlorine at such high levels for ongoing quality ...
Higher range chlorine solutions are typically used for disinfecting products but standard chlorine meters often cannot measure to higher ranges. For example the Hach Pocket Colorimeter II for chlorine measures to a maximum of 2mg/L, and the MD100 Duo for Chlorine measures to a maximum of 8mg/L There are several instruments available for samples where chlorine levels are high, lets take a ...
Thanks for sharing such a great information.. It really helpful to me.. I always search to read the quality content and finally i found this in you post. keep it up!
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...
