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Crathorne, B.; Edwards, M.W.; Jones, N.R.; Walters, C.L.; Woolford, G., Use of isomers in the detection and estimation of volatile nitrosamines by combined high-resolution mass spectrometry-gas chromatography, J. Chromatogr., 1975, 115, 1, 213-217, https://doi.org/10.1016/S0021-9673(00)89034-2 . [all data]