EPA Method 507/525 Analytes Mix #3 Back Catalog number: 30084 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended A629140 6-Aminoquinolyl-N-hydroxysuccinimidyl Carbamate 90%, 50mg Price on request 71588 1-Ethyl-2-pyrrolidinone, 1000µg/ml in MeOH, 1ml Price on request 72270 Thymine Price on request