Magnesium (Mg)

2,4,6-Trichloro[13C6]phenol, 1.2ml x 100ug/ml, isooctane

L-PFOSK with branched isomers, 1.2ml x 50ug/ml, methanol

Demeton-S-methyl-sulfoxide, 100 µg/ml, Ethyl acet