Chemistry: analytical and immunological testing – Metal or metal containing – Li – na – k – rb – cs – fr – be – mg – ca – sr – ba – ra
Patent
1989-03-13
1990-04-17
Nucker, Christine M.
Chemistry: analytical and immunological testing
Metal or metal containing
Li, na, k, rb, cs, fr, be, mg, ca, sr, ba, ra
2504611, 422 8208, 436164, 436172, G01N 3122
Patent
active
049180223
ABSTRACT:
A process for determining the presence of the chrysotile form of asbestos in a bulk sample is provided. A small sample of a material suspected to contain asbestos is mixed with a phosphate buffer solution containing Clayton Yellow dye. The sample is then exposed to ultraviolet light. Fluorescence of the sample indicates the presence of chrysotile.
REFERENCES:
patent: 3881822 (1975-05-01), Rose
patent: 4333733 (1982-06-01), Sanford et al.
patent: 4383043 (1983-05-01), Denney et al.
"Test for Screening Asbestos," Kim, W. S.; Carter, J. W., II; Kupel, R. E.; DHEW (NIOSH), Pub. No. 80-110; Oct. 1979.
Jones, William L., "Identification of Chrysotile," NTIS publication, Feb. 25, 1981, #PB81-222663.
The Merck Index, 10th Edition, pub. Rayway, N.J., 1983, p. 333, #2312-"Clayton Yellow".
Albright et al, Research on a Rapid and Simple Detection Method for Asbestos, R&D Report for National Science Foundation, 1980.
Albright et al, A Fluorescent Dye Building Technique for Detection of Chrysotile Asbestos, Microscope, 1982, pp. 267-280.
Johnston Jill
Nucker Christine M.
Ohio State University
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