Method 200.8 Single Element Kit Back Catalog number: 52251 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11762.12-100-IO 2,2',3,4,4',5,6'-Heptachlorobiphenyl ,100 µg/mL,isooctane,1mL, Price on request 15900-3216-100AN1 Metazachlor-ESA sodium salt, 100µg/ml in AL, 1ml Price on request 53050 Interference Standard 3 Price on request