Confirmatory methods for the thermal energy determination of N-nitroso compounds at trace levels
摘要:
Methods are presented which allow for the rapid and reliable confirmation of N-nitroso compounds as determined by use of the nitrosyl specific thermal energy analyzer. These approaches utilize minor modifications in the normal operation of the analyzer, gas chromatography and high performance liquid chromatography interfaced with the analyzer, ultraviolet irradiation of the sample, and wet chemical procedures. Comparisons are made between these analyzer associated methods of confirmation, and other approaches for the determination of N-nitroso compounds at trace levels. An overall general scheme Is described which allows for the confirmation of nitrosyl analyzer responsive materials as either N-nitroso, X-nitroso (X = C, O) or X-nitro (X = N, C, O).
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DOI:
10.1021/ac50047a028
被引量:
年份:
1979
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