Spiking Standard 1

Temephos-d12 (O,O,O',O'-tetramethyl-d12), 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1219795-39-7

4-Hydroxyphenylacetic acid, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 156-38-7

4,4'-Dichloro[13C12]biphenyl, 50.0µg/mL in Nonane/10% toluene, 1,2ml