The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 17, 1992
Filed:
Oct. 03, 1990
Robert H Clifford, Pennsauken, NJ (US);
Akbar Montaser, Potomac, MD (US);
Scott P Dolan, Washington, DC (US);
Stephen G Capar, Stafford, VA (US);
Abstract
An ultrasonic humidifier is converted to a low-cost, geyser-type ultrasonic nebulizer for atomic spectrometry. The device may be operated in either a batch or the continuous mode. Long-term precisions of 1-2% were achieved for 14 elements. For a sample uptake rate of 1 mL/min., detection limits measured with the geyser-type ultrasonic nebulizer were superior to those obtained with a PN by a factor of 8-50. While detection limits measured utilizing the converted nebulizer of the present invention were similar to those reported for commercial ultrasonic nebulizers, the converted nebulizer of the present invention is much less expensive.