A Better Understanding Of What Spectroscopy Is And Its Applications

Spectroscopy is a technique that uses light to identify the composition of substances. It can be used in analytical chemistry, environmental monitoring, and medical diagnostics. 

There are many different types of spectroscopy, but they all rely on how light interacts with matter. Light consists of waves that have peaks and troughs like waves at the beach; when these waves hit an object, some will bounce off while others will be absorbed by it.

This is because objects don’t emit light uniformly—they have specific wavelengths or colors that they prefer to reflect while absorbing other colors. For example, water absorbs red light more than any other color so if you want to measure the concentration of dissolved oxygen in water using spectroscopy (which requires looking at red wavelengths), the water will appear deep blue or black.

A brief history of spectroscopy

Spectroscopy has been used by scientists since 1859 when Gustav Kirchhoff and Robert Bunsen developed it while experimenting with heated metal filaments. The word “spectroscope” was coined by William Huggins who later discovered infrared spectra during his research on nebulae in 1864. In the late 1800s, other pioneers like John William Draper, Joseph Norman Lockyer, Edward Charles Pickering, and Henry Augustus Rowland worked to better understand the spectroscopy of stars and other celestial bodies.

As an analytical technique, spectroscopy has been used for over a hundred years in laboratories around the world as well as out in nature by chemists, biologists, environmental scientists, and astronomers alike. It is now one of the most commonly-used scientific tools. 

There are two types of spectroscopy – emission spectroscopy and absorption spectroscopy

Emission spectroscopies involve studying the wavelengths, frequencies, and intensities of emitted radiation. Absorption spectroscopies involve studying what substances a beam of electromagnetic radiation (usually in the infrared region) passes through or is reflected by light.

Common uses of spectroscopy

Spectroscopy is used in many different fields of science. As you can see in this guide, it has some really common applications. For example, In analytical chemistry spectroscopy is used to identify the composition and properties of substances like blood or drugs by looking at their absorption pattern for specific wavelengths. 

This technique can also be combined with chromatography which separates a mixture into its components on the basis of their different absorption rates.

In environmental monitoring, some substances like mercury vapor have specific spectral signatures that can be detected and measured to better understand the environmental impact of a release.

In medicine, spectroscopy is used in clinical diagnostics because it can identify substances like cholesterol or hemoglobin that might not otherwise show up on tests. It’s also helpful for examining blood flow through vessels, determining whether there are problems with tissue oxygenation, detecting cancerous cells, and more.

In food science spectroscopy is used to better understand the composition of foods like cheese or chocolate by looking at their absorption pattern for specific wavelengths 

The advantages and disadvantages of spectroscopy

The advantages of spectroscopy are that it is a non-invasive and relatively low-cost technique. It can be used to detect substances better than other techniques or measure things like temperature or chemical composition better than any other method.

There are also some disadvantages: for example, the equipment needed for spectroscopic analysis tends to be expensive and complex. There are also specific limitations with different spectroscopic techniques, and some substances may be better detected by one technique than another.

Future applications of spectroscopy and how it might change the world as we know it

We’ve discussed the history of spectroscopy, but what about its future? One idea that has been discussed is using spectroscopy to better understand the composition of a galaxy, which can give us information on how it was formed. This would be valuable for understanding not only our own Milky Way but also other galaxies.

Another possible future application is in electronic devices like solar cells or computer chips where scientists are trying to better understand how light interacts with different types of materials. We can better design these devices by understanding how they work, and spectroscopy could be an important tool in that process.

In the medical field, there are many possible future applications of spectroscopy as well: for example, it might better help us detect breast cancer or identify heart disease.

There’s also potential for spectroscopy in the criminal justice field. It may help better detect fingerprints or even track criminals who are on parole and wearing a GPS ankle bracelet

Spectroscopy is already being used to better understand many aspects of our world, but it’s clear that this will continue into the future as well because there are so many possible applications.