Intellex Acquires Expert by Big Village

We're thrilled to announce that Intellex has acquired Expert by Big Village, effective March 22, 2024. This strategic move enhances our capabilities and strengthens our commitment to delivering exceptional solutions to our customers.

Stay tuned for more updates on how this acquisition will benefit our clients and experts.

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Expert Details

Fluorescence Spectroscopy, Analysis of Metal Ions by Chelation with Organic Ligands, etc.

ID: 108318 Florida, USA

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FLUORESCENCE SPECTROSCOPY. Expert has worked in the area of fluorescence spectroscopy for almost thirty years. He has published extensively on the influences of pH and solvent composition upon fluorescence spectra and has used these phenomena to study the rates and mechanisms of acid-base reactions of electronically excited molecules. Some of his work in this area has been concerned with the measurement of quantum yields, with the use of lanthanide chelates in trace analysis and in the detection and determination of polymorphs in solid pharmaceutical preparations and with the chemistry and spectroscopy of fluorescence optical sensors.

UV & LIGHT ABSORPTION. Expert has worked in the area of molecular electronic spectroscopy and spectro-photometry for virtually all of his career. He has applied the methodology to the solution of a wide variety of analytical problems ranging from simple quantitative analysis to the determination of the stabilities of complexes of drugs with biological macromolecules. Additionally, he is active in the theoretical aspects of spectroscopy and is currently working on an approach to calculate the molar absorptivities of complexes in which multiple ligand binding occurs.

METAL ANALYTICAL CHEMISTRY. Expert has several years of experience in the analysis of metal ions by chelation with organic ligands. Most often the analysis is carried out absorptiometrically or fluorimetrically.

pH & WATER CHEMISTRY. Expert's research in fluorimetry has carried him deeply into the chemistry of aqueous solutions. In particular, he has been able to demonstrate that the concept of pH is applicable to mixed aqueous organic solvents over a substantial range of composition. Some of this research has also shed new light on the tendency of water to form extended clusters upon the addition of organic solvents. Expert's work on proton-transfer in concentrated acid and neutral electrolyte solutions has yielded new ways to deal with kinetic and equilibrium chemical situations in these media which may be more representative of seawater than diluted aqueous solutions.


Education

Year Degree Subject Institution
Year: 1967 Degree: PhD Subject: Chemistry Institution: University of Arizona
Year: 1961 Degree: BS Subject: Chemistry/Physics Institution: The City College of New York

Work History

Years Employer Title Department
Years: 1969 to Present Employer: Undisclosed Title: Professor Department:
Responsibilities:
Available upon request.
Years Employer Title Department
Years: 1968 to 1969 Employer: Bellcomm, Inc. Title: Technical Staff Department:
Responsibilities:
Available upon request.
Years Employer Title Department
Years: 1967 to 1968 Employer: Boyce Thompson Institute for Plant Research Title: Physical Chemist Department:
Responsibilities:
Available upon request.

International Experience

Years Country / Region Summary
Years: to Present Country / Region: Netherlands, Japan, Austria, Scotland Summary: Expert taught molecular spectroscopy at universities in the Netherlands and Japan. He has conducted research in Austria, the Netherlands, Japan, and Scotland

Career Accomplishments

Associations / Societies
Expert is a member of the American Chemical Society, American Association of Pharmaceutical Sciences, and Sigma Xi.
Awards / Recognition
Expert has received medals for achievement in the pharmaceutical sciences from the State University of Ghent (Belgium), Kumamoto University (Japan), and Nagasaki University (Japan).

Language Skills

Language Proficiency
Spanish, German, Dutch, Japanese
French, Italian

Fields of Expertise

absorption spectroscopy, fluorescence spectroscopy, pH chemistry, ultraviolet absorption spectroscopy, acid dissociation constant, hydrogen ion concentration, inorganic acid, inorganic base, organic solvent, pH, pH control, pH measurement, pH scale, pH sensor, ultraviolet absorber, ultraviolet absorption, aquatic chemistry, organic analysis, fluorometer, pH meter, titration, pH electrode, pH paper, pH indicator dye, emission spectrum, physical organic chemistry, acid-base indicator, absorption spectrophotometer, absorbance, aqueous solution, pH gradient, acidity, absorption spectrum, ligand, ionizing radiation, Beer's law, reaction-rate equation, base (chemical), hydroxide compound, chelating, micro-calorimetry, chemical kinetics, qualitative inorganic chemistry, water physical chemistry, sulfuric acid, spectroscopy, spectrophotometry, solution chemistry, qualitative organic chemistry, non-electrolytic solution, metal analytical chemistry, dosimetry, chemiluminescence, chemical analysis

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