PPT-Atomic-absorption spectroscopy

In analytical chemistry Atomic absorption spectroscopy AAS is a technique for determining the concentration of a particular metal element in a sample eg Fe Cu Al Pb Ca Zn. Andrew Rouff and Kyle Chau. The Basics. . wavelength= (λ) . original intensity= . Ι. o . . sample slab thickness= dl. Final intensity= . I. f. ε. ’. = molar extinction coefficient. -d. I. = Cε. Keywords. : infrared, radiation, absorption. , spectroscopy. • State that absorption of infrared radiation causes covalent bonds to vibrate.. • Identify absorption peaks in an infrared spectrum.. Dr . Fadhl. . Alakwaa. 2013-2014. Third Year. Biomedical Engineering Department. www.Fadhl-alakwa.weebly.com. AGENDA. Atomic Absorption Spectrometry. Photometry: Atomic Emission . Spectroscopy. Fluorometer. Professor. Dr. HANS SCHUESSLER . By. . Ansam Jameel Talib. Molecular Physics Course. . . . History of Raman Scattering. 1923. . – Inelastic light . scattering . predicted by A. . Frequency combs – evolutionary tree. Overview. Basic Features: Frequency . C. ombs. Applications:. Frequency Metrology. Measuring Frequency Gaps. Frequency Combs as Optical Synthesizers. Time Domain Applicatons . General issues of spectroscopies. II. General issues of spectroscopies. We will learn two types of spectroscopies: absorption/emission . spectroscopy and scattering spectroscopy.. We will learn their relationship to dipole moment and . AP Chemistry. Mrs. Weston. What is spectrophotometry?. A type of spectroscopy that studies the transmission or reflection of different frequencies of the electromagnetic spectrum (specifically visible, near-IR and near-UV ranges) . 2. UV Spectroscopy. Introduction. UV radiation and Electronic Excitations. The difference in energy between molecular bonding, non-bonding and anti-bonding orbitals ranges from 125-650 kJ/mole. This energy corresponds to EM radiation in the ultraviolet (UV) region, 100-350 nm, and visible (VIS) regions 350-700 nm of the spectrum. 1 IR-Spectroscopy IR region The part of electromagnetic radiation between the visible and microwave regions 0.8  m to 50  m ( 12,500 cm -1 - 200 cm -1 ) is called IR region Most interested region in Infrared Spectroscopy is between 2.5 Chapter 5. Sub Topics. Introduction to Atomic Spectroscopy. Atomic . Absorption Spectroscopy AAS. Atomic . Emission . Spectroscopy. AES. Interferences and Comparisons. Atomic Absorption and Emission Spectroscopy. 2. Nuclear Magnetic Resonance Spectroscopy. After hydrogen, the most useful atom providing information is carbon-13.. The . overall intensity of a . 13. C signal is about 6400 . times . less than the intensity of an . Carsten Laukamp, CSIRO Mineral Resources. crushing,. grinding,. sieving,. filtering,. …. fresh surface. “peel”. (weathered surface). Geochemistry. Mineral Spectroscopy. 2. |. Mineral Spectroscopy Theory. Announcements. Second Homework Set – . due today (additional problems); key will be posted soon. Quiz . T. oday. Today’s Lecture. Spectroscopic Instrumentation (Chapter 19. ). Light Detectors. Transducers. Lecture-2. This Photo. by Unknown Author is licensed under . CC BY. — . 2. What is Optical Absorption?. Definition : This is the phenomena when any material object takes up the light energy (photon) and alters electromagnetic energy into heat energy of the absorber..