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EPA Method 549.1
Diquat and Paraquat in Drinking Water by Liquid-Solid
Extraction and HPLC with Ultraviolet Detection

These systems from Horizon Technology are optimized for
EPA Method 549.
1

  Diquat is a herbicide that has been used extensively in the US since the late 1950s to control both crop and aquatic weeds. It is used on potatoes; as an aid in harvesting cotton, rapeseed and other oil seed crops; to wilt and dry out silage, standing hay, etc. for storage; a plant growth regulator and sugar cane-flowering suppressant.

Paraquat is a quartenary nitrogen herbicide widely used for broadleaf weed control. It is a quick acting, non-selective compound that destroys green plant tissue on contact and by translocation within the plant. It has been employed for killing marijuana in the U.S. and in Mexico. It is also used as a crop desiccant and defoliant and as an aquatic herbicide.

For a copy of EPA Method 549.1, click here

Click to download a copy of a Horizon Technology Application Note on EPA Method 549.1

EPA Method List
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