*If you learn how to use atomic absorption spectroscopy (AAS), you can do accurate and reliable chemical research. But it takes practice and concentration to fully grasp its basic ideas. Understanding ...

What is Surface-Enhanced Infrared Absorption (SEIRA) Spectroscopy? Surface-enhanced infrared absorption (SEIRA) spectroscopy is an advanced analytical technique that combines the principles of ...

Laser absorption spectroscopy encompasses a suite of techniques that probe the selective absorption of laser light by gas molecules to determine concentration, composition and dynamics. By exploiting ...

Near-infrared spectroscopy, known as NIR spectroscopy or NIRS, is a long-established analytical technique. For over 30 years, it has proven to be a fast and reliable method for measuring chemical and ...

Fig. 1 Basic principle for the greenhouse gas detection with air-lasing-based Raman spectroscopy. (a) The generation scheme of air lasing and coherent Raman scattering; (b) The original and broadened ...