Method and device for detecting birefringent substances in liqui

Details Method and device for detecting birefringent substances in liqui Method and device for detecting birefringent substances in liqui

1977-09-20

1983-04-12

Punter, William H.

Optics: measuring and testing

By polarized light examination

With birefringent element

350407, 356246, G02B 2728, G01N 110, G01N 2123

Patent

active

043796346

ABSTRACT:
A method and a device for detecting the presence or absence of substances having birefringent properties in liquids, particularly the detection of crystals of uric acid in samples taken by puncture from joint effusions, by placing the sample between two crossed polarizing sheets linked together about a common axis.

REFERENCES:
patent: 2015949 (1935-10-01), Maw
patent: 2056791 (1936-10-01), Logan
patent: 2311840 (1943-02-01), Land
patent: 2985288 (1961-05-01), Reich
patent: 3104273 (1963-09-01), Ballance
patent: 3208332 (1965-09-01), Chromy
patent: 3582182 (1971-06-01), Martin
patent: 3649100 (1972-03-01), Kirst
patent: 3863502 (1975-02-01), Elliott
Bausch & Lomb, "Optical Instruments in the Textile Industries", Bausch & Lomb Optical Co. 1931, p. 75.

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