Additions standard

Bis(4-isopropylphenyl) phenyl phosphate, 1.2ml x 50ug/ml, toluene

Ribes nigrum, 5g

2-(Phenylthio)thiophene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 16718-12-0