Accession Number : ADD014895

Title :   Quartz Burner for Use in an Atomic Absorption Spectrometer for the Analysis of Organometal Compounds via Hydride Derivatization.

Descriptive Note : Patent, Filed 27 Dec 88, patented 3 Apr 90,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Clavell, Cesar

Report Date : 03 Apr 1990

Pagination or Media Count : 5

Abstract : An automated laboratory procedure for the determination of several environmentally important organotin compounds is set out in detail in a paper presented and published at the Proceedings of the Organotin Symposium of the Oceans 86 Conference and Exposition, Washington, D.C. Sept 23-25, 1986. The present invention is directed to providing a burner for use in an atomic absorption spectrophotometer for the analysis of organotin compounds via hydride derivatization. An appropriate arrangement of fused together quartz tubelets passes hydrogen, air and an organic compound sample into a combustion chamber provided with a window that is adjacent a hydrogen-air flame. This creates an environment which is capable of completely disassociating volatile organic compounds into their atomic constituents. The location of the optical window and the tubelets for the hydrogen, air, helium and organic compound assures the complete disassociation even at low flow rates to thereby increase the detection sensitivity of the associated equipment. An object of the invention is to provide an improvement over a conventional sample atomizer in an atomic absorption spectrophotometer.

Descriptors :   ABSORPTION, ABSORPTION SPECTRA, AIR, ATOMIC PROPERTIES, AUTOMATION, BURNERS, COMBUSTION CHAMBERS, DETECTION, FLAMES, FLOW RATE, HELIUM, HYDROGEN, INVENTIONS, LABORATORY PROCEDURES, LOW RATE, OPTICAL EQUIPMENT, ORGANIC COMPOUNDS, ORGANOMETALLIC COMPOUNDS, QUARTZ, SENSITIVITY, SPECTROMETERS, SPECTROPHOTOMETRY, SYMPOSIA, TIN COMPOUNDS, VOLATILITY, WINDOWS

Subject Categories : Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE