Interference Standard Mix 2 Back Catalog number: 52040 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 56115 Phosphorus (P) Price on request 10637.12-50-NN 1,2,3,4,7,8,9-Heptachlorodibenzofuran,50 µg/mL,n-nonane,1mL Price on request 94508 N,N-Dimethylacetamide Price on request