Application of Inductively Coupled Plasma Atomic Emission (ICP-AES) Spectrometry The 7th Nordic Conference on Plasma Spectrochemistry, June 1-4, 2014, Loen, Norway Isaac (Joe Brenner), Brenner Scientific 9 Hadishon Street, Malkha, Jerusalem, Israel, 96956 Tel +97226797255, Cell - +972-544-424403. E-mail Joe.Brenner@mail.huji.ac.il Abstract Inductively Coupled Plasma Atomic Emission (ICP-AES) Spectrometry has become the workhorse in analytical laboratories where multi element analysis has to be performed on a wide range of materials. This short course will review basics of the ICP, a brief overview of sample preparation, aerosol transport and introduction, instrumentation and plasma configurations, spectroscopic and nonspectroscopic interferences. The course will highlight recent instrumentation developments such as microwave plasmas and critically review benefits and drawbacks of axially vs. radially viewed plasmas using conventional analytical figures of merit such as limits of detection, calibration linearity, and matrix derived nonspectroscopic interferences. Several applications will be described- determination of major, minor and trace elements in geo-environmental, water and waste water samples. Outline 1. Fundamental aspects of ICP-AES. 2. Sample introduction. Pneumatic, cross-flow, low-consumption, high-salt Vgroove, and desolvating nebulizers. 3. Sample preparation. Acid decomposition, fusions, sinters, open dish, hot blocks, pressurized containers, microwave dissolution, new instrumental developments. Advantages and disadvantages; e.g. recoveries of refractory and volatile components. Partial digestions and extraction for determining mode of occurrence of elements and species for environmental evaluations. 4. Compliant methods of sample preparation and analysis for analysis of waters, wastewaters, and solid wastes (EPA 200.7, 200.8, SW-846 6010B and 6020A), TCLP 1311 5. Instrumentation Overview Criteria for instrument selection - wavelength range, LODs, resolution, VUV region for determination of halogens 6. Axial vs. radial ICPs Comparison using conventional figures of merit (limits of detection, response linearity, and matrix effects). 7. Nonspectroscopic and spectroscopic interferences a. Spectroscopic – spectral overlap, resolution, background corrections, interference equivalent coefficients b. Nonspectroscopic - Physical effects in aerosol generation and transport systems. EIEs (Na, Ca), salt and acid effects, importance of spectral line energy -. Ion vs. atom lines, memory effects. c. Effect of ICP operating conditions (RF power, nebulizer flow rate, and torch configuration). d. Mg II 285/Mg I 280 ratios as matrix effect criteria and instrument set up. e. Methanol – methane effect on high ionization potential elements f. Setup, calibration, internal standards, calibration and interference checks, 8. Conclusions and discussions Course Instructor's Biography Joe Brenner specializes in geo-environmental analytical science and technologies. He is actively involved in compliant instrumental and methods development for solution and solids analysis using ICP-AES and ICP-MS. He focusses in preparing environmental laboratories for ISO/EC 17025 accreditation using Standard Methods and US EPA 200.7, 200.8, 6010c and 6020A procedures, including sampling strategies, preparation of SOPs, instruction, QA/QC and data interpretation. He obtained his Ph.D. in Geochemistry from the Hebrew University, Jerusalem, Israel in 1980. Joe was a guest professor in several academic institutions - Technical University Graz, Austria, Earth Dynamics Science Center, National Cheng Kung University in Taiwan). Joe Brenner was a guest scientist in the Laboratoire de Chimie Analytique Bio Inorganique et Environnement, (LCABIE) CNRS, Pau, France, Chuo University, Tokyo, Japan, Faculty of Chemistry, Autonoma University, Barcelona, Spain). He was Head of Application in Jobin Yvon in Longjumeau, France in the 1980s; a senior scientist in the Varian Research Center, Palo Alto, California, USA in the 1990s. In these positions, he developed analytical methodologies for ICP-AES using radial and axially viewed ICPs and evaluated the performances of commercial instruments. Brenner was a consulting scientist for ICP-AES and MS application and marketing mainly in Thermo Fisher Scientific in Madrid. Brenner is currently an adviser for compliant analysis of waters and wastes at EGODAN in Israel, the authority for controlling and recycling effluents. Joe Brenner has delivered more than 600 oral presentations, short courses, round table discussions, at universities, international symposiums, research institutes, and instrument manufacturers; he has 100 peer-reviewed scientific publications