Chemistry: analytical and immunological testing – Nuclear magnetic resonance – electron spin resonance or other...
Patent
1983-05-09
1985-07-16
Turk, Arnold
Chemistry: analytical and immunological testing
Nuclear magnetic resonance, electron spin resonance or other...
324308, 436181, 556410, 556428, G01N 2408
Patent
active
045297100
ABSTRACT:
(CH.sub.3).sub.3 SiNSO is produced by the reaction of ((CH.sub.3).sub.3 Si).sub.2 NH with SO.sub.2. Also produced in the reaction are ((CH.sub.3).sub.3 Si).sub.2 O and a new solid compound [NH.sub.4 ][(CH.sub.3).sub.3 SiOSO.sub.2 ]. Both (CH.sub.3).sub.3 SiNSO and [NH.sub.4 ][(CH.sub.3).sub.3 SiOSO.sub.2 ] have fluorescent properties. The reaction of the subject invention is used in a method of measuring the concentration of SO.sub.2 pollutants in gases. By the method, a sample of gas is bubbled through a solution of ((CH.sub.3).sub.3 Si).sub.2 NH, whereby any SO.sub.2 present in the gas will react to produce the two fluorescent products. The measured fluorescence of these products can then be used to calculate the concentration of SO.sub.2 in the original gas sample. The solid product [NH.sub.4 ][(CH.sub.3).sub.3 SiOSO.sub.2 ] may be used as a standard in solid state NMR spectroscopy, wherein the resonance peaks of either .sup.1 H, .sup.13 C, .sup.15 N, or .sup.29 Si may be used as a reference.
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Bennett Dennis W.
Davis Jon F.
Spicer Leonard D.
Albrecht John M.
Hightower Judson R.
The United States of America as represented by the United States
Turk Arnold
Weiss Sandra B.
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