Viscosity is a measure of the resistance of fluid to an applied stress. In everyday terms it is like the “thickness” of a fluid or gas. For example, water has a low viscosity so it appears “thin”. In comparison honey has a higher viscosity so it appears “thick”. Viscosity essentially describes a liquids internal resistance to flow and may be thought of as a measure of its internal friction. The measurement of viscosity is a fairly simple test and the result reported is generally a single number. For the results of a viscosity test to be relevant, they should be compared to the results of tests done at the same temperature. It is normal for fluids to become more viscous at colder temperatures and less viscous at higher temperatures. What is rheology? Rheology is a
Specialising in marketing and servicing scientific and analytical instruments, ATA Scientific has had a significant influence across Australia and New Zealand’s pharmaceutical, polymer, chemical and mining industries. We endeavour to stay abreast in the latest research and developments in the scientific world, and as such have over time acquired a very large contact base around the globe. At ATA Scientific we believe supporting this industry’s up-and-coming research personalities is key to bettering our own products and service, but even more importantly, is vital to sustaining scientific communication, growth and discovery. This is why we regularly sponsor promising academics and researchers; helping them achieve their goals has a flow on effect to the rest of the scientific community, and society in general. Nicolas Alcaraz is one such student who we have supported in recent months. A
What is chromatography? Chromatography is a scientific process in separation science, the part of chemistry concerned with the separation of compounds and mixtures. Generally speaking the two significant categories are preparative and analytical. Analytical chromatography uses smaller sample sizes and the primary objective of separating compounds is to identify their components. A good example is in a lab environment where you are searching for toxins or pollutants in a sample. Meanwhile preparative work uses large quantities with the aim of removing impurities from samples to prepare them for use outside the lab. Pharmaceutical production is a good example of preparative chromatography. Who discovered chromatography? A Russian botanist named Mikhail Tswett unearthed Chromatography in the early 1900s after discovering that ground-up plant material extracts produced different coloured solutions based on the type of solvent used in
Technology is quickly taking over every aspect of our lives, and solving crimes is no different. In fact, the rapid changes and improvements in technology have meant that solving crimes almost takes on a futuristic factor, like something from a work of fiction. During the forensic science process, forensic equipment is used to process samples and evidence and hopefully solve crimes. Measurements include analysis of evidence, fingerprinting or DNA identification, analysing drugs or chemicals and dealing with body fluids. Importantly, it is the fusion of science and technology that allows forensic scientists to do a lot of their work. Sciences such as biology, chemistry and mathematics are combined with various technologies to process evidence. There are loads of different technologies used in the forensic sciences, some that have been made famous by television shows like
Spectrometry is the study of interactions between light and matter, and the reactions and measurements of radiation intensity and wavelength. Far from being a specialised, unique field, spectroscopy is an integral element of the scientific process within a variety of disciplines. While it provided a theoretical backing to early quantum research in radiation and atomic structure, it also has a staggering number of other applied uses; Magnetic Resonance Imaging (MRI) and X-ray machines utilise a form of radio-frequency spectroscopy, we measure the unique makeup and physical properties of distant astral bodies through their spectra and wavelength, and it’s even used to test doping in sports!