Nitrate & Nitrite as N Back Catalog number: 50454 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 35011 EPA Method 524.2 - Gases & Liquids Price on request S-4409-30 S-4409 AZO Solution 18 Analytes 2783,12 4-Aminobiphenyl 1773,12 4,4’-Benzidine 2763,7 4-Chloro-2-methylaniline 1780,10 2-Aminonaphthalene 2765,6 4-Chloroaniline 278/4,7 2,4-Diaminoanisole 2762,13 4,4’-Methylenedianiline 278 Price on request X9099 Disulfoton Price on request