EPA Method 8240A Internal Standard Back Catalog number: 22003 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 12073.12-100MG Nalidixic acid,neat,neat,100mg, Price on request 90524 N,N-Dimethylformamide Price on request EPA-1613STOCK EPA Method 1613 Native Stock Solution, 1.2ml, nonane Price on request