Roger A Stafford

Title: The Innovations of Roger A Stafford

Introduction

Roger A Stafford is an accomplished inventor based in Orange, CA (US). He has made significant contributions to the field of photometry, particularly in the determination of concentration changes of chromophore substances. His innovative approach has led to the development of a unique system that enhances the accuracy of concentration measurements.

Latest Patents

Roger A Stafford holds a patent for a system titled "Concentration determination with multiple wavelength flash photometers." This monobeam system is designed to determine concentration changes of chromophore substances in a sample. It utilizes a flash lamp to pass a light beam through the sample containing the analyte. The system measures absorbance values at multiple wavelengths and determines the optimum linear combination of these values to obtain a measure of chromophore concentration. The method employs Deming's technique and eigenvector transformations to measure extinction coefficients for the chromophore. Additionally, a matrix reflecting the noise pattern of the system is established, which, along with the extinction coefficients, aids in determining the coefficients for the optimum linear combination. An electronic module is also incorporated to convert analog intensity data into digital data for five wavelengths, which is then processed into absorbance values and concentration determinations.

Career Highlights

Roger A Stafford has had a notable career, working at Beckman Instruments, Inc., where he has been able to apply his expertise in photometry. His work has contributed to advancements in analytical chemistry and has had a lasting impact on the field.

Collaborations

Throughout his career, Roger has collaborated with esteemed colleagues, including Robert L Schmidt and Roy W Aday, Jr. These collaborations have further enriched his work and contributed to the success of his innovations.

Conclusion

Roger A Stafford's contributions to the field of photometry through his innovative patent demonstrate his commitment to advancing scientific knowledge. His work continues to influence the way concentration changes of chromophore substances are measured, showcasing the importance of innovation in scientific research.