Spectroscopy Application Note Alert Having trouble viewing this email? Click here Molecular Spectroscopy The Spectroscopy of Christmas Lights LED holiday lights have low power, high efficiency and bright colors. But how do LEDs compare with incandescent lights? We tested for irradiance, flicker, and color. Observation of Lutein and Beta-Carotene in Fruits and Vegetables A TSI ChemLogix™ ProRaman-L instrument is used to examine important protective antioxidants in common fruits and vegetables. SEIRAS-Optimized ATR Wafers for Interfacial Spectroelectrochemistry A microgrooved Si ATR wafer allowing for high angles of incidence at the electrode-solution interface provides improved signal-to-noise in electrochemical ATR-SEIRAS.   Atomic Spectroscopy Optimizing Metals Sample Prep for Contract Laboratories This application note describes the use of Single Reaction Chamber (SRC) technology to standardize and simplify microwave sample preparation for contract laboratories. Analysis of Allergy Medications for Class 1, 2, and 3 Elements Using ICP-OES PerkinElmer’s Avio 500 ICP-OES passes validation testing for Class 1, 2, and 3 elements for USP <232>/<233> methodology and allows labs to comply with 21 CFR Part 11. Performance of the DST Acid Purification Systems Acid purification systems provide a continuous supply of high-purity acid for metals analysis. We present user data for both semiconductor and geochemical applications. Ni, V, S in Crude by EDXRF Analysis of sulfur, calcium, vanadium, iron, and nickel in crude, demonstrated. The measurement is applicable to residual oil, bunker fuels, and other heavy hydrocarbon oils.   General Classification of Brain Glioma Tumors A study conducted with the Univ of Oxford Neuropathology Dept showed discrimination between diseased and healthy brain tissue using Renishaw’s Biological Analyzer, RA816.