Development of atomic absorption spectrometer with electrothermic atomization using tungsten filament based in pulsed xenon lamp and linear image sensor

• Grant number: 03/01730-0
• Support Opportunities: Research Grants - Innovative Research in Small Business - PIPE
• Start date: November 01, 2003
• End date: April 30, 2007
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
• Principal Investigator: Lidio Kazuo Takayama
• Grantee: Lidio Kazuo Takayama
• Company: Femto Indústria e Comércio de Instrumentos Ltda
• City: São Paulo

Abstract

At the present time there is no manufacturer producing atomic absorption spectrometers in Brazil. The aim of this project is to develop and launch the first of these devices with totally Brazilian technology and software, in the hope also that it will have an impact on the international market. The basic proposal is to assemble an atomic absorption spectrometer with an electrothermic atomizer, using a complete tungsten filament, including: light source with a mechanically choppered hollow cathode lamp, high resolution monochromator with wavelength around 1,0 nanometer, detection system with lock-in amplifier and photomultiplier, analogue-digital converter, software for management of system and mathematical treatment of signal. To test the initial technical viability, the prototype will be simplified with a hollow cathode lamp. With good results obtained in the first phase of the project, in the second phase this prototype will be perfected, including automatic lamp change, automation of preparation and introduction of samples. Once the product is developed, the intention is to launch it initially on the Brazilian market, and subsequently offer it on the international market. (AU)