SUPELCO 57088 Supelclean Envi-Carb 3ml Tubes pack of 72application(s) food and beverages composition bed wt., 250 mg material polypropylene tube matrix active group carbon phase packaging pk of 72 particle size 120 400 mesh product line Supelclean Quality Level 100 separation technique reversed phase surface area 100 m2 g technique(s) solid phase extraction (SPE): suitable volume 3 mL