Study of a Low-Powered He Microwave-Induced Plasma for Determination of P, Cl, Br, and I by Atomic Emission Spectrometry

✍ Scribed by Q.H. Jin; H.Q. Zhang; D.M. Ye; J.S. Zhang

• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 308 KB
• Volume: 47
• Category: Article
• ISSN: 0026-265X
• DOI: 10.1006/mchj.1993.1044

✦ Synopsis

Aqueous sample solutions were nebulized by an ultrasonic nebulizer and the solvent was removed by a desolvation apparatus before introduction of the aerosol into the microwaveinduced plasma (MIP). The desolvation system consists of a heating tube and a condenser associated with a concentrated (\mathrm{H}{2} \mathrm{SO}{4}) desiccator. The water vapor was removed almost completely with the desolvation system. The detectability of microwave-induced plasma atomic emission spectrometry was therefore improved. The detection limits for (\mathrm{P}, \mathrm{Cl}, \mathrm{Br}), and I were (0.0045,0.12,0.23), and (0.06 \mu \mathrm{g} / \mathrm{ml}), respectively. Based on a study of the emission spectra of (\mathrm{P}, \mathrm{Cl}, \mathrm{Br}), and (\mathrm{I}) in the range of 200 to (600 \mathrm{~nm}) in He MIP, the optimum analytical lines for determination of corresponding elements were chosen. O 1993 Academic Press, Inc.