Joseph L Mangum

Title: Joseph L. Mangum: Innovator in Ion Mobility Spectrometry

Introduction

Joseph L. Mangum is a notable inventor based in Baltimore, MD (US). He has made significant contributions to the field of ion mobility spectrometry, particularly through his innovative patent that enhances the detection and generation of ion spectra.

Latest Patents

Joseph L. Mangum holds a patent for a "Method and apparatus for enhanced ion spectra generation and detection." This invention describes a method for operating an Ion Mobility Spectrometer, where an analyte sample is ionized in the spectrometer's reaction chamber. The analyte ions are allowed to flow freely from the reaction chamber into the drift chamber. During this process, the ion current output from the spectrometer's ion current detector is monitored. The flow of ions from the reaction chamber to the drift chamber is then temporarily interrupted, and the time delay between this interruption and the observed decrease in the ion current detector output is recorded. Different substances exhibit varying delays, allowing for the determination of their concentrations by measuring the change in detected ion current after the interruption.

Career Highlights

Joseph L. Mangum is associated with Environmental Technologies Group, Inc., where he applies his expertise in ion mobility spectrometry. His work has contributed to advancements in the detection of various substances, enhancing the capabilities of analytical instruments.

Collaborations

Throughout his career, Joseph has collaborated with notable colleagues, including Julio A. Reategui and Glenn E. Spangler. These collaborations have fostered innovation and development in their respective fields.

Conclusion

Joseph L. Mangum's contributions to ion mobility spectrometry exemplify the impact of innovative thinking in scientific research. His patent not only advances the technology but also opens new avenues for substance detection and analysis.