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| Number | Title | Issue Date |
| 7958770 | Heated transfer line for use in high temperature microwave chromatography A heat transfer line assembly is disclosed for microwave heated chromatography instruments. Analytical instruments incorporating a microwave oven including the heated transfer lines are also disclosed as well as methods for making and using same. ... | 06/14/2011 |
| 7949471 | Method and system of measuring cetane values for middle distillate fuels A method and a system is disclosed for determining cetane values from constant volume combustion chamber apparatuses capable of producing pressure versus time combustion profiles having a fast combustion region and a slow combustion region, where data from the two r... | 05/24/2011 |
| 7244395 | Apparatus for trace sulfur detection using UV fluorescence A method and system for performing low level sulfur UV fluorescence measures including an UV interference reduction system which removes or destroys interfering nitrogen oxides. The preferred nitrogen removal systems include introducing ozone into the system in suff... | 07/17/2007 |
| 7018845 | Method for staged oxidation for enhanced nitrogen and sulfur detection A more efficient method for combustion or oxidation of samples containing nitrogen, phosphorus and/or sulfur to their corresponding oxides is disclosed, where method uses multi-staged addition of an oxidizing agent to enhance oxidation and liberation of nitrogen, ph... | 03/28/2006 |
