WS Anions - Cal Check (X 10)

Diphenyltin dichloride, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-5, Cas.no. 1135-99-5

Methanol QC Reference Mixture III n-Butyl sulfide, 0.5 ppm (weight S by weight) in 99.9 % methanol; units: 10x10mL

Disulfoton, 100 µg/ml, Toluene, 1ml