Chemiluminescent sulfur detection apparatus and method
US4678756A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 9, 1982 |
| Grant date | Jul 7, 1987 |
| Priority date | — |
| Expiry date | Jun 9, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/188
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In the illustrated and preferred embodiment of this disclosure, a chemiluminescent sulfur detector, both method and apparatus, for detecting bonded sulfur in compounds is disclosed. The illustrated and preferred embodiment, being provided with a discrete sample, passes the sample through a first furnace in the presence of a carrier of inert gas and is exposed to a suitable granulated metal oxide, such as copper oxide or vanadium pentoxide, resulting in oxidation of the sulfur compound. The sample is then passed through a second furnace comingled with elemental hydrogen, there being a conversion of sulfur oxides to hydrogen sulfide. The output of the second furnace is dried. The hydrogen sulfide, along with the inert carrier gas, is introduced into a reaction chamber and is mixed with ozone. A chemiluminescent reaction occurs in the chamber, and the resulting light emission is measured photoelectrically by either a photomultiplier tube or photodiode. The output from the photomultiplier tube is connected to a summing circuit, and the summation represents the measure of sulfur in the specimen. The reaction chamber is evacuated through an outlet system so that continuous processing of …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.