Surrogate Standard Back Catalog number: 97935 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675624 Isoprothiolane, 10 µg/ml, Acetonitrile, 10ml Price on request 59344 Perchlorate (ClO4-), 100µg/mL in Water, 100ml Price on request 3PM138 2,2',3',4,4',5-Hexachloro-3-methoxybiphenyl, 1.2ml x 50ug/ml, nonane Price on request