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Cell ashing for trace element analysis: A new approach based on ultraviolet/ozone
G De Stasio1, B Gilbert, L Perfetti
1Institut de Physique Appliquée, Ecole Polytechnique Fédérale, PH-Ecublens, Lausanne, CH-1015, Switzerland.pupa@src.wisc.edu
Analytical Biochemistry
|January 16, 1999
Summary
This study introduces a novel cell ashing technique using a mercury lamp, which effectively removes carbon while retaining and enhancing key elements like phosphorus and calcium in neurobiological samples.
Area of Science:
- Neurobiology
- Biochemistry
- Analytical Chemistry
Background:
- Traditional cell ashing methods can lead to loss of important elemental data.
- Accurate elemental analysis is crucial for understanding cellular function and disease.
Purpose of the Study:
- To investigate a new cell ashing method using low-pressure mercury discharge lamps.
- To analyze the elemental composition of neurobiological specimens after this treatment.
Main Methods:
- Illumination of specimens with a low-pressure mercury discharge lamp.
- Synchrotron-based spectromicroscopy for elemental analysis.
Main Results:
- Selective removal of carbon from neurobiological specimens.
- Retention and enhanced relative concentrations of phosphorus, calcium, potassium, and sulfur.
- Improved detectability of trace elements.
Conclusions:
- The mercury lamp-based cell ashing technique is effective for preserving and concentrating key physiological elements.
- This method offers enhanced detectability for trace elements in biological samples.