Isolation and determination of nitrosoamines

Details Isolation and determination of nitrosoamines Isolation and determination of nitrosoamines

1980-06-27

1981-09-29

Marantz, Sidney

Chemistry: physical processes

Physical processes

Crystallization

252408, G01N 3122, G01N 3108

Patent

active

042920400

ABSTRACT:
A method of determining the content of polar-substituted alkyl nitrosoamines in a sample at levels as low as 20 nanograms in the presence of interfering substances such as nitrites and the like. After chromatographic separation, the nitrosoamine is reacted with reagent comprising hydrogen bromide, sulfanilamide, hydrochloric acid, surfactant and N-(1-naphthyl)ethylenediamine to give a colored product.

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patent: 4066411 (1978-01-01), Fine
G. M. Singer et al., J. Chromatogr., 133, 59-66 (1977).
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C. L. Walters et al., Br. Food Manuf. Ind. Res. Assoc., Leatherhead, Surrey, Engl., IARC Sci. Publ., 75, 9 (N-Nitroso Compd. Environ., Proc. Work Conf., 1973) 22-25.
W. I. Stephen, Analyst, 102, 793-803 (1977).
B. E. Saltzman, Anal. Chem., 26 (12), 1949-1955 (1954).

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