Franek Olstowski is the “Godfather” of the Technology. He is the Inventor of Excimer UV Fluorescence and other patented technologies from ATOM Instrument. Recognized as a renowned scientist with a practical working knowledge of optics, electronics, chemistry and physics, Franek has over 40 years of experience in the analyzer industry. He is also the founder of ATOM Instrument, now a Process Insights brand.
Our patented Excimer UV Fluorescence (EUVF) technology is incorporated into our analyzers. This technology provide high reliability and confidence of analytical results, reduces operational and maintenance costs, meets today’s emission standards, and provides outstanding analytical performance to meet the challenges of future emission requirements.
The ATOM Excimer Technology is much less sensitive to interference from molecular-bound nitrogen, which can significantly affect the accuracy of sulfur measurement depending on the composition of the analyzed samples.
The samples demonstrate the superior Nitrogen Rejection obtained with ATOM’s Excimer technology. The certified sulfur sample contains 1.453 ppm/wt sulfur as Dibutylsulfide whereas the nitrogen sample contains 8850 ppm/wt nitrogen as Pyridine. The Blank sample, as well as the balance of the two other samples, was HPLC-grade iso-octane. All samples were run in triplicate and the average of each sample was used to calculate nitrogen rejection according to the formula:
The molecular-bound nitrogen in the pyridine sample is nearly 0.9% by weight, but its response is less than half of the 1.453 ppm/wt. sulfur sample, resulting in a nitrogen rejection ratio greater than 5,000:1. Also note, that the blank sample has almost no detectable response. This unsurpassed nitrogen rejection is highly beneficial in reducing measurement error when analyzing high nitrogen content samples for sulfur content.
The graph shows achievable emission stability of ATOM’s Excimer UVF lamp over a period of 5,000 hours (about 7 months). After 7 months of operation, the lamp has only lost about 7% of intensity. Lamp lifetime far exceeds that obtained with other commercially available UF lamps.
ATOM Analyzers based on Excimer UV fluorescence technology meet or exceed all operational and performance requirements.
Standard Test Method for Determination of Total Sulfur in Light Hydrocarbons, Spark Ignition Engine Fuel, Diesel Engine Fuel, and Engine Oil by Ultraviolet Fluorescence Scope: This test method covers the determination of total sulfur in liquid hydrocarbons, boiling in the range from approximately 25 to 400°C, with viscosities between approximately 0.2 and 20 cSt (mm2/S) at room temperature.
Standard Test Method for Determination of Total Volatile Sulfur in Gaseous Hydrocarbons and Liquefied Petroleum Gases by Ultraviolet Fluorescence Scope: This test method covers the determination of total volatile sulfur in gaseous hydrocarbons and liquefied petroleum (LP) gases. It is applicable to analysis of natural, processed, and final product materials containing sulfur in the range of 1 to 100 mg/kg.