Ethanol standard in water,1.0g/L,water, 1.5mL

3-Epi-25-Hydroxyvitamin D3-[d3], 50μg/ml, 1ml

1,2,3,4-Tetramethylbenzene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 488-23-3

4-tert-Octylphenol monoethoxylate,1000 µg/mL,MeOH,1mL,