Roxithromycin, 100 µg/ml, Methanol, 1ml

4,4-Pentamethylene-2-pyrrolidone, >98%, 5g

Calibration Curve Set, Native Compounds (§ 5.9) Set of 7 solutions in isooctane/toluene; unit: 7x1mL Compound Solution 1 Solution 2 Solution 3 Solution 4 Solution 5 Solution 6 Solution 7 ng/mL ng/mL

4-Chlorophenol, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 106-48-9