Multi-Element Internal Std., 10ug/ml, 4x25ml Back Catalog number: 52319 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 53110 Disc. Use P#52129 (100mL) Price on request 94990 PCB Congeners Price on request 71044 2,3,5-Trimethylpyrazine Price on request