Method 200.8/1638/1640 Internal Standard Back Catalog number: 53145 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 79683 Diisopropylamine Price on request 1115.18-100-T 6-Nitrochrysene-d11, 100µg/ml in Toluene, 1ml Price on request 70660 Diquat, 1000µg/ml in Water, 1ml Price on request