Evaluation of sequential and simultaneous detection in inductively-coupled plasma emission spectrometry of complex samples

✍ Scribed by James P. McCarthy; Joseph A. Caruso; Karen A. Wolnik; Fred L. Fricke

• Publisher: Elsevier Science
• Year: 1983
• Tongue: English
• Weight: 720 KB
• Volume: 147
• Category: Article
• ISSN: 0003-2670
• DOI: 10.1016/0003-2670(83)80081-6

✦ Synopsis

A commercially available inductively-coupled plasma (i.c.p.) polychromator system and a laboratory-constructed i.c.p. sequential detection system are evaluated. Some previous studies are reviewed and theoretical expectations are compared to experimental data. 'The precision and detection limits of the two systems are approximately equivalent. Difficulties commonly encountered with complex samples, including background interferences, spectral overlap, and determinations beyond the linear range of an element are studied. The abilities of each instrument to circumvent these difficulties at different interference levels are evaluated. The wavelength flexibility of the sequential system is demonstrated to be advantageous in dealing with these interferences. Each instrument was evaluated for NBS spinach, NBS river sediment, volcanic ash, and refractory brick. The complementary nature of the sequential system and polychromator with respect to method development and quantitative work is discussed.