Monday, 21 January 2013

Spectrometry-Analytical dissection of compounds


As time has passed over the years and with the advancement in knowledge and technology, all sciences including chemistry has witnessed major changes. Gone are the days when scientists would completely rely on stones and magic to not only learn about elements and compounds, but also to change elements and compounds into various metals and objects. With the advancement in technology, scientists can now not only study elements and compounds regularly, but also abstract, dissect and even experiment with them frequently. In fact, nowadays, there are many different types of techniques, equipment and gadgets that help scientists and individuals to easily conduct experiments and analyze compounds and elements in minutes rather than months.
One of the most popular and common techniques that is frequently used by scientists nowadays is the graphite furnace atomic absorption technique.  Although, this technique is quite similar to the atomic absorption spectrometer technique as it works on the principle of light, it primarily uses graphite to analyze the compounds and elements. In this technique, scientists often heat the graphite refractory at high temperatures so that it can emit atoms, which are later analyzed. However in the atomic absorption technique, scientists use light and monochromatic waves to analyze compounds. While, both the techniques can effectively provide analysis of compounds, the graphite technique provides more clearer and accurate results. The only drawback of this technique is that it is quite time consuming as it can only analyze five to six compounds at a stretch. 
Another common gadget that is frequently used by scientists is the mercury analyzer. This gadget is primarily used by companies working in the sewage treatment segment and by various petrochemical refineries. With this device, individuals can easily identify the presence of high levels of mercury in gas or liquid streams, thereby, enabling the individual to remove any excess mercury present in sludge or crude oil. In the test of mercury levels, the samples are first placed within a sampling tube and are then treated with thermal and chemicals, which leads to identifying the levels of mercury. The entire process is often known as Atomic Absorption Spectrometer. By identifying and removing high levels of mercury, companies also prevent various side-effects, such as ailments and poisoning from occurring in human beings and also protect the rivers and oceans from becoming contaminated. It is for this reason that mercury analyzers have become so popular among various companies in today’s world.