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| Number | Title | Issue Date |
| 6884356 | Low-level boron detection and measurement Methods and apparatus (50) are disclosed for accurately measuring low concentrations of boron in deionized water utilizing the chemical reaction of boric acid with a polyol by injecting very small plugs of concentrated polyol into streams of boron containing ... | 04/26/2005 |
| 6723565 | Pulsed-flow total organic carbon analyzer Methods and apparatus are disclosed for determination of the total concentration of organic carbon compounds in aqueous process streams utilizing a pulsed-flow technique for irradiating a water sample in a chamber (3) with UV or similar wavelength radiation. | 04/20/2004 |
| 6271043 | Method to supply a fluid sample to an analyzer Apparatus and methods for supplying a portion of a fluid stream and, alternately, a fluid of known composition and concentration to an analyzer are provided. The fluid stream is directed through a series of connected chambers formed in an integral housing... | 08/07/2001 |
| 6228325 | Methods and apparatus for measurement of the carbon and heteroorganic content of water including single-cell instrumentation mode for same Apparatus and methods for determining the content of total organic carbon, total inorganic carbon, total carbon and total heteroorganic carbon in water are disclosed. In a preferred comprehensive embodiment, the water sample is split into a first stream a... | 05/08/2001 |
| 6183695 | Reagentless oxidation reactor and methods for using same An improved apparatus and method is disclosed utilizing hydrogen absorption in combination with photolysis and/or electrolysis for in situ generation, i.e., without the need for adding chemical oxidizing agents, or enhancement of oxidizing conditions used... | 02/06/2001 |
| 6130095 | Method for the measurement of sulfur compounds An improved system for the measurement of sulfur compounds is described. The system comprises an enclosed burner assembly for the conversion of sulfur-containing compounds to sulfur monoxide and subsequent detection of sulfur monoxide by ozone-induced che... | 10/10/2000 |
| 5976468 | Apparatus and method to supply a fluid sample to an analyzer Apparatus and methods for supplying a portion of a fluid stream and, alternately, a fluid of known composition and concentration to an analyzer are provided. The fluid stream is directed through a series of connected chambers formed in an integral housing... | 11/02/1999 |
| 5935519 | Apparatus for the detection of sulfur A process and apparatus are disclosed for the detection and measurement of sulfur in both organic and inorganic sulfur-containing compounds. The process includes admixing a sample including a sulfur-containing compound with oxygen, and then exposing the m... | 08/10/1999 |
| 5902751 | Method and apparatus for the measurement of dissolved carbon Apparatus and methods for the measurement of total organic carbon, total inorganic carbon and total carbon of water are described. The ample is acidified and split into an inorganic carbon stream and a total carbon stream. The inorganic carbon in the inor... | 05/11/1999 |
| 5837203 | Device to alternately supply a fluid to an analyzer Apparatus and methods for supplying a portion of a fluid stream and, alternately, a fluid of known composition and concentration to an analyzer are provided. The fluid stream is directed through a series of connected chambers formed in an integral housing... | 11/17/1998 |
| 5820823 | Method and apparatus for the measurement of dissolved carbon Apparatus and methods for the measurement of total organic carbon, total inorganic carbon and total carbon of water are described. The sample is acidified and split into an inorganic carbon stream and a total carbon stream. The inorganic carbon in the ino... | 10/13/1998 |
| 5798271 | Apparatus for the measurement of dissolved carbon in deionized water Apparatus and methods for the measurement of total organic carbon, total inorganic carbon, total carbon and total heteroorganic carbon of deionized water are described. In a preferred embodiment, the sample is split into a first stream and a second stream... | 08/25/1998 |
| 5750073 | Reagentless oxidation reactor in a carbon measuring system An oxidation reactor having particular utility in a system for measuring carbon in an aqueous sample. A first chamber and second chamber are separated by a hydrogen-permeable electrode, each chamber having a separate electrolysis cell. The hydrogen-permea... | 05/12/1998 |
| 5661036 | Process for the detection of sulfur A process and apparatus are disclosed for the detection and measurement of sulfur in both organic and inorganic sulfur-containing compounds. The process includes admixing a sample including a sulfur-containing compound with oxygen, and then exposing the m... | 08/26/1997 |
| 5501981 | Method and apparatus for chemiluminescent detection of sulfur An improved method and apparatus for the measurement of sulfur compounds is described. The system comprises a dual burner assembly for the conversion of sulfur-containing compounds to form sulfur monoxide and subsequent detection of sulfur monoxide by ozo... | 03/26/1996 |
| 5443991 | Method for the determination of dissolved carbon in water Apparatus and methods for the measurement of total organic carbon and total inorganic and organic content of water are described. A novel combination of an acidification module, and inorganic carbon removal module based on a carbon dioxide selective gas p... | 08/22/1995 |
| 5424217 | Process for the detection of sulfur A process and apparatus are disclosed for the detection and measurement of sulfur in both organic and inorganic sulfur-containing compounds. The process includes admixing a sample including a sulfur-containing compound with oxygen, and then exposing the m... | 06/13/1995 |
| 5330714 | Process and apparatus for simultaneous measurement of sulfur and non-sulfur containing compounds The present invention describes the process and apparatus for the simultaneous measurement of sulfur-containing compounds and organic compounds with or without sulfur in their structures. A detector cell is described that allows simultaneous measurement o... | 07/19/1994 |
| 5132094 | Method and apparatus for the determination of dissolved carbon in water Apparatus and methods for the measurement of total organic carbon and total inorganic and organic content of water are described. A novel combination of an acidification module, and inorganic carbon removal module based on a carbon dioxide selective gas p... | 07/21/1992 |
