Guest
Analytical Instrumentation - Atomic Emission Spectroscopy ---------------------------------------------------------------------------------------------------------- The principle of Atomic Emission Spectroscopy or AES as known commonly is the study of emissions given out by atoms present in the sample. This helps to identify the atoms as well as it's quantity. In this technique, the sample is first converted into aerosol using an atomiser. This helps break the sample into fine particles. The aerosolized sample is then injected with energy in the form of heat. A flame is employed for this purpose. Once energy is fed to the sample, the atoms take up this heat energy and jump to higher energy levels. The energy levels are different for different atoms. As a result, different energies will be taken up by different atoms. The atoms cannot stay in the higher energy state for quite long. As a result, they travel back to their original energy level and in this process give out energy. The energy given out by different atoms will be different and the energy is released in the form of light photons. These photons have all the properties of a light wave or EMR. As the energy given out by different atoms is different, the wavelength is also unique. When these light photons are measured, a curve of wavelength vs intensity is plotted. From the wavelength, one can determine the type of atom i.e) perform qualitative analysis. The intensity helps to measure the concentration. More the number of atoms, more is the intensity and thus it means more is the concentration and vice versa. This means even quantitative analysis can be performed using AES. Hope you like and enjoy the video. Give us a thumbs up. Stay calm and keep learning. Subscribe to the channel to learn about such more interesting concepts and to never miss any new updates. *** Get amazing content and support on Academic Courses, GATE Courses, Professional Courses and Career with Ekeeda. Go to platform and register with the referral code EAPHAR74. Use the coupon code Ninja10 on purchase for special discount! We have an exciting news for everyone! We have developed a course on PLC basics in collaboration with Internshala where you can get good discounts using the coupon code ISRP16947850. Go check it out here- *** ------------------------------------------------------------------------------------------- Please watch the video: on Atomic Absorption Spectroscopy (AAS) Please watch the video: on Raman Spectroscopy Please watch the video: on Spectrofluorimeter Please watch the video: on Double Beam Spectrometer Please watch the video: on Basics of UV-Vis spectroscopy in Analytical Instrumentation Please watch the video: on Filters and Monochromators, Gratings used in Analytical Instrumentation Please watch the video: on Detectors used in Analytical Instrumentation: Please watch the video: on Single Beam Photometer used in Analytical Instrumentation ------------------------------------------------------------------------------------------- Link to the video on Accelerometer: Link to the video on Gyroscope: Link to the video on Magnetometer: ------------------------------------------------------------------------------------------- Link to the video #1 in the automation series: Introduction to PLC | Programmable logic controllers | Steps towards learning Automation - 01 Link to the video #2 in the automation series: How does a relay work? | Normally Open | Normally Closed | Steps towards learning Automation - 02 Link to the video #3 in the automation series: Concept of Sinking and Sourcing in PLC | Steps towards learning Automation - 03 ------------------------------------------------------------------------------------------- Please watch our playlist on Digital Electronics: Please watch our playlist on Analytical Instrumentation: Please watch our playlist on Automation and Programmable Logic Controllers (PLC): ------------------------------------------------------------------------------------------- Credits : ---------------------------- -~-~~-~~~-~~-~- Please watch: “What makes our phones smart? - SOC | System on Chip | Brain of a smartphone“ -~-~~-~~~-~~-~-
