Thiencarbazone-methyl, 100 µg/ml, Acetonitrile, 1ml

Bendroflumethiazide,100 µg/mL,MeOH,1mL,

Bis(3-tert-butylphenyl) phenyl phosphate, 1.2ml x 50ug/ml, toluene

111800 µS/cm calibration solution (230mL)