On February 7th, we celebrate Periodic Table Day, honoring the foundation of modern chemistry. The periodic table, first arranged by Dmitri Mendeleev in 1869, provided a systematic way to understand elements and their properties. But how do we identify and analyze these elements in real-world applications?
The answer lies in spectroscopy—a powerful technique that allows scientists to “see” the unique fingerprints of elements by analyzing how they interact with light. Every element absorbs and emits specific wavelengths, producing a spectral pattern that acts like a barcode of light.
How Spectroscopy Reveals the Periodic Table
When light interacts with a material, elements within it either absorb or emit light at specific wavelengths, forming spectral lines. These lines correspond to electron transitions in atoms, which scientists can use to determine elemental composition.
Types of Spectroscopy Used for Elemental Analysis
1️⃣ UV-Vis Spectroscopy – Used to analyze transition metals, dyes, and biological samples, identifying how they absorb ultraviolet and visible light.
2️⃣ NIR Spectroscopy – Applied in food, pharmaceuticals, and agriculture, providing rapid analysis of molecular structures in organic materials.
3️⃣ Raman Spectroscopy – A technique that detects vibrational modes of molecules, helping scientists analyze minerals, pharmaceuticals, and industrial compounds with high specificity.
4️⃣ Laser-Induced Breakdown Spectroscopy (LIBS) – A technique that uses a laser to form a plasma. As the plasma cools it emits light at specific wavelengths – each element has its own unique spectral fingerprint.
StellarNet’s Role in Elemental and Molecular Analysis
At StellarNet, we provide high-performance spectrometers designed to analyze elements across UV, Vis, and NIR wavelengths. Our compact and rugged systems are used in labs, field studies, and industrial settings for applications such as:
🔹 Identifying trace metals in environmental samples
🔹 Analyzing pharmaceutical ingredients for quality control
🔹 Investigating food authenticity using molecular spectroscopy
🔹 Studying rare earth elements for high-tech applications
Our latest Dual Wavelength Raman Microscopy System enhances elemental and molecular analysis by providing high-resolution spectral data, making it ideal for materials science, forensics, and nanotechnology research.
Send Us Your Applications!
From discovering new materials to ensuring product safety, spectroscopy continues to push the boundaries of scientific discovery—just as Mendeleev’s periodic table did over 150 years ago.
How do you use spectroscopy in your work? Share your insights by emailing your spectroscopy applications to Jordan@StellarNet.us and have a chance to be a featured! Join us in celebrating Periodic Table Day!
