Archive for the News Category

What is a pH Probe? What is a pH probe? A pH probe is a device that measures the pH level of a substance or solution. It does this by measuring the amount of hydrogen (H+) or hydroxyl (OH-) ions in a substance. If there are more

What is Conductivity Measurement? Conductivity is the ability of a material to pass an electric current. It is the reciprocal of resistivity. It is typically measured in aqueous solutions, and in this context, it can be defined as the ability of a solution to conduct an electric

From Founder and Technical Director, Kenny Petrie Today Sentek Ltd is in a position of strength due to our ongoing commitment to offering flexibility to our customers in the areas of design, innovation and chemical support and the proven ability to excel and grow in the face

Sentek Ltd sponsors local youth football team.   Sentek Ltd is proud to become the kit sponsor for Dunmow Rovers Youth F.C Under 12’s Team for the 2021/22 season. The Club, based only minutes from Sentek’s head office premises in Braintree, Essex, has been established since 1976.

Q&A with Sentek Founder, Kenneth Petrie How did you become involved in the electrochemical sensor industry? I started in the electrochemistry industry as a scientific glassblower in Fife, I took a real interest in the product, and learned all about it. Working for the people that were

Why Measure The Conductivity of Water? Water conductivity measurement refers to testing a sample of water to see how well it can conduct an electrical current. Pure, distilled water has extremely low levels of conductivity, and so the presence of other elements can increase conductivity. For example,

A Guide to Reference Electrodes The purpose of a reference electrode is to provide a constant and defined potential. This potential is determined by the electrolyte inside the electrode, and the reference element used. Most electrodes are combination electrodes, meaning they combine a stable reference and a

Why are educational electrodes an important tool? Since 1991 Sentek has been providing a range of electrochemical sensors for use in science, industry and education. Many schools and colleges will use educational electrodes as part of their practical lessons, to help educate students on measurement and analysis

How do ion selective electrodes work? Ion selective electrodes allow us to measure the activity of a specific ion in a sample, by measuring the potential of a measuring cell which has a membrane that is specific to a certain ion, against the potential of a reference

Measuring dissolved oxygen in water and why it’s important. Dissolved oxygen (DO) is a measure of how much oxygen is dissolved in water. It has important chemical and biological implications across a large range of applications that are vital for everyday life. We can study water sources

What is pH Measurement Used For? If you are conducting any research that involves measuring the pH of a substance, you will need an appropriate pH measurement device. This is done through the use of a pH electrode and meter that shows how acidic a solution is

Conical Flask Uses Conical flask uses within the laboratory are numerous and varied. Beaker chemistry is an integral element of testing and manufacture within the field of medical science and many other sectors. So ubiquitous are they, that a scientist without a conical flask is like a

Types of pH Meter It is important to define the difference between a pH meter and pH probe in order to understand their overall functions. A pH meter is an instrument that measures the overall acidity or alkalinity of a liquid or solution. This is measured on

Why Food Safety is Important in Manufacturing We often take the safety and quality of our food for granted. However, we should also mention that such high standards can be challenging to achieve within the manufacturing industry. Whether referring to possible contamination hazards to ensuring that perishables

A Look Into The Food Processing Industry Just how big is the food processing industry? Believe it or not, but food and drink (also known as F&B – Food & Beverage) is the largest manufacturing sector in the UK. According to the Food & Drink Federation, F&B

How are Biofuels Made? People within the industry are often asked the question ‘how are biofuels made?’ Not surprisingly it’s a question that can’t be answered in a sentence. Here we take a look at the manufacture of biofuels and try to answer that question, as well

What is pH Adjustment? The science of everyday things Sentek is one of the UK’s leading manufacturers of probes, pH electrodes and sensors, specifically designed for use in a range of manufacturing and other procedures, including pH adjustment. Although these instruments are essentially scientific in nature, their

How to Pick the Right pH Testing Equipment Most people, even if they don’t work in a specialist profession, have a bit of knowledge about pH and its significance. It is one of the first lessons taught in school chemistry because knowing how to measure acidity and