Analyte: 2-Acetylaminofluorene, CAS Number: 53-96-3; Analyte: 5-Nitro-o-toluidine, CAS Number: 99-55-8; Analyte: N-Nitrosomorpholine, CAS Number: 59-89-2; Analyte: N-Nitrosomethylethylamine, CAS Number: 10595-95-6; Analyte: N-Nitrosopyrrolidine, CAS Number: 930-55-2; Analyte: 4-Nitroquinoline-1-oxide, CAS Number: 56-57-5; Analyte: N-Nitrosodiethylamine, CAS Number: 55-18-5; Analyte: o-Toluidine, CAS Number: 95-53-4; Analyte: 3,3'-Dimethoxybenzidine, CAS Number: 119-90-4; Analyte: o-Anisidine, CAS Number: 90-04-0; Analyte: 4-Aminoazobenzene, CAS Number: 60-09-3; Analyte: 5-Chloro-2-methylaniline, CAS Number: 95-79-4; Analyte: 2,4-Diaminotoluene, CAS Number: 95-80-7; Analyte: p-Cresidine, CAS Number: 120-71-8; Analyte: 4,4'-Oxydianiline, CAS Number: 101-80-4 ; .