EPA Method 507/1656 Nitrogen Phosphorus Back Catalog number: 31782 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended S-4688-100-ACX10 Custom Mix deuterated pesticides, Internal standards 100ug/mL in aceton 10 x 1ml 8 compounds 2932. 2,4-D D3 (old pr. nr. 9506.), 9764.Bentazone D6, 9508.DNOC D3 (instead of D5) 9507.Dichlorprop D3 (instead of D6) 2921. MCPA D3 (instead of D Price on request 678494 Pyridaben, 100 µg/ml, Acetonitrile, 5ml Price on request 673420 Propargite, 10.0 µg/ml, Acetonitrile, 10ml Price on request