Photochemical determination of organic compounds

Chemistry: analytical and immunological testing – Halogen containing – Carbon containing compound

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436124, 436169, 436171, 436177, 356433, G01N 2133, G01N 3318, G01N 3324, G01N 3376

Patent

active

054279550

ABSTRACT:
A method for measuring or detecting halogenated organic compound content. For example, the method can be used to identify polychlorinated biphenyls ("PCB's"), contaminating soil or oil. The method is based on a light induced color producing reaction between a photodonor reagent and a halogenated organic compound. This reaction produces change in the optical absorption of the light exposed photodonor. Reversing the role of reagent and halogenated organic compound provides a method for identifying polyaromatic organic compounds such as pyrenes.

REFERENCES:
patent: 2385471 (1941-07-01), Scharer
patent: 2593878 (1952-04-01), Haines et al.
patent: 3001917 (1961-09-01), Scheider
patent: 3254210 (1966-05-01), Schmitt
patent: 4160802 (1979-07-01), White et al.
patent: 4778570 (1988-10-01), Von Duin
patent: 4943161 (1990-07-01), Michaelis et al.
patent: 4944921 (1990-07-01), Colby et al.
patent: 4960711 (1990-10-01), Aoki et al.
patent: 4992379 (1991-02-01), Hanby
patent: 5028543 (1991-07-01), Finch
patent: 5073502 (1991-12-01), Steele
Okumura, K. et al., "Fluorometric Determination of Chloroform in Drinking Water", Analysis, vol. 107, pp. 1498-1502, 1982.
Sihmamori et al., "Rates and Efficiencies of Contact-Ion-Pair Formation in Photolyzed Mixtures of TMPD with Halogenated Compounds in Non Polar Solvents" J. of Physical Chemistry, 97(14), 1993, pp. 3545-3550.
Okumura et al., "Fluorimetric Determination of Chloroform in Drinking Water", The Analyst, 170 (1981), 1982, 1498-1502.
Meyer, W. C. Correlation of the Luminscence Perturbation of N,N,N',N'-Tetramethyl-p-phenylenediamine . . . 74 J. Phys. Chem. 2127.
Meyer, W. C. Halogen-Sanitized Photoionization of N,N,N',N'-Tetramethyl-p-phenylene in Liquid Halomethanes 74 J. Phys. Chem. 2118.
Meyer, W. C. Halogen-Sensitized Photoionization of Aromatic Amine in Molded Polymer Films, 74 J. Phys. Chem. 2122.

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