Bibliographic Citation
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Title | Conversion of an ultrasonic humidifier to a continuous-type ultrasonic nebulizer for atomic spectrometry |
Creator/Author | Clifford, R.H. ; Montaser, A. (George Washington Univ., Washington, DC (USA)) ; Dolan, S.P. ; Capar, S.G. (Food and Drug Administration, Washington, DC (USA)) |
Publication Date | 1990 Dec 15 |
OSTI Identifier | OSTI ID: 6108882 |
Other Number(s) | ISSN0003-2700; CODEN: ANCHA |
Resource Type | Journal Article |
Resource Relation | Analytical Chemistry (Washington) ; Vol/Issue: 62:24; DOE Project |
Subject | 400102 -- Chemical & Spectral Procedures; ABSORPTION SPECTROSCOPY-- SAMPLE PREPARATION; EXPERIMENTAL DATA;HUMIDIFIERS;MEASURING INSTRUMENTS;MEASURING METHODS;SENSITIVITY |
Related Subject | DATA;INFORMATION;NUMERICAL DATA;SPECTROSCOPY |
Description/Abstract | The most commonly used solution nebulizers (1) in atomic spectrometry are: (a) pneumatic nebulizers (PNs), (b) ultrasonic nebulizers (USNs), and (c) glass frit nebulizers (GFNs).^Most PNs are extremely inefficient because the majority of test solution (98-99%) is directed to the drain.^In this report, the authors describe simple conversion of an inexpensive (approximately %50), commercial ultrasonic humidifier to a continuous-type ultrasonic nebulizer suitable for analytical atomic spectrometry.^The total cost of the proposed system used in the batch or continuous mode is less than $800.^The new USN was compared to a commonly used PN with respect to atomic emission detection limits, precision of the analyte signal, signal-to-background ratios (S/B), percent relative standard deviation (% RSD) of background, droplet size, and noise power spectra (NPS).^Detection limits obtained with the new system were also compared to results reported for commercial USNs (11-13). |
Country of Publication | United States |
Language | English |
Format | Pages: 2745-2749 |
System Entry Date | 2001 May 13 |
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