Company Filing History:
Years Active: 1985
Title: Innovations of John N Cox in Ion Mobility Spectrometry
Introduction
John N Cox is a notable inventor based in Baltimore, MD (US). He has made significant contributions to the field of ion mobility spectrometry, particularly with his innovative designs that enhance specificity in detection systems. His work is recognized for its practical applications in various scientific and industrial fields.
Latest Patents
John N Cox holds a patent for an "Ion mobility spectrometer system with improved specificity." This advanced ion mobility spectrometer features a reaction chamber and a drift chamber, along with an ionization source located in the reaction chamber. The system includes an injection grid that separates the reaction and drift chambers, a collector electrode in the drift chamber, and a sample input for injecting samples and carrier gases into the reaction chamber. The design incorporates a source that injects acetone and/or carbon tetrachloride as reagents into the carrier gas before it enters the sample input. The acetone reactant forms a dimer ion in the positive ion spectrum, which helps to reduce water clustering and provides a narrow fixed peak in the ion spectrum. This peak serves as a reference point for the algorithm used in the electronic control unit, generating an output characteristic of the sample. Additionally, the carbon tetrachloride reactant forms a specific ion that acts as a reference in the negative ion spectrum, further enhancing the spectrometer's specificity for detection and identification.
Career Highlights
John N Cox is associated with Allied Corporation, where he applies his expertise in developing innovative spectrometry systems. His work has contributed to advancements in analytical chemistry and detection technologies, making significant impacts in various applications.
Collaborations
John has collaborated with Glenn E Spangler, working together to enhance the capabilities of ion mobility spectrometry systems. Their partnership has led to improvements in the specificity and efficiency of detection methods.
Conclusion
John N Cox's contributions to ion mobility spectrometry exemplify the importance of innovation in scientific research and technology. His patented designs not only improve detection specificity but also pave the way for future advancements in the field.