Thiamethoxam, 100µg/mL in Acetonitrile, 1ml

(±)-Sotalol-d7 hydrochloride (isopropyl-d7),100 µg/mL,MeOH,1mL,

Ethanol standard in serum,0.2g/L,serum, 1.5mL

25-Hydroxyvitamin D3, 100µg/ml in MeOH, 1ml