Total Kjeldahl Nitrogen as N Back Catalog number: 50793 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 54504 Nitrite (NO2-) as N Price on request S-4007-ASS-AC PAH/NPD Stock Solution 21 Analytes, each concentration as listed in acetone; units: 1x1mL, 5x1mL 0711.10 Naphthalene [91-20-3] 1.86 µg/mL 0713.11 2-Methylnaphthalene [91-57-6] Price on request 676332 Propranolol hydrochloride, 100mg Price on request