Gun Shot Residue Single Element Kit Back Catalog number: 52257 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended C16380400 Propachlor-oxalamic acid (OA), 10mg Price on request 676437 Pyriofenone, 10mg Price on request S-4160-100-HX Analytical Standard for n-Alkanes 1mL Use 100µg/mL in hexane as a working standard n-C10-C40 + Pristane Price on request