Method of analysis of asbestiform minerals by thermoluminescence

Patent · Tue Jan 01 00:00:00 EST 1980

OSTI ID:863644

Fisher, Gerald L ^[1]; Bradley, Edward W ^[1]

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1. Davis, CA

A method for the qualitative and quantitative analysis of asbestiform minerals, including the steps of subjecting a sample to be analyzed to the thermoluminescent analysis, annealing the sample, subjecting the sample to ionizing radiation, and subjecting the sample to a second thermoluminescent analysis. Glow curves are derived from the two thermoluminescent analyses and their shapes then compared to established glow curves of known asbestiform minerals to identify the type of asbestiform in the sample. Also, during at least one of the analyses, the thermoluminescent response for each sample is integrated during a linear heating period of the analysis in order to derive the total thermoluminescence per milligram of sample. This total is a measure of the quantity of asbestiform in the sample and may also be used to identify the source of the sample.

• Research Organization: California Univ., Davis (USA). Lab. for Energy-Related Health Research
• DOE Contract Number: EY-76-C-03-0472
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4220856
• OSTI ID: 863644
• Country of Publication: United States
• Language: English

Related Subjects

method
analysis
asbestiform
minerals
thermoluminescence
qualitative
quantitative
including
steps
subjecting
sample
analyzed
thermoluminescent
annealing
ionizing
radiation
glow
curves
derived
analyses
shapes
compared
established
identify
type
response
integrated
linear
heating
period
derive
total
milligram
measure
quantity
source
quantitative analysis
ionizing radiation
asbestiform minerals
/250/