Alachlor OA, 100µg/ml in MeOH, 1ml

13C3-Caffeine, 10mg

Total Kjeldahl Nitrogen as N

1,2,3,4-Tetramethylanthracene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 66553-01-3