Here's a list of the pesticide classes that may be analyzed by LC MS Methods

1. Organophosphates: Examples include Chlorpyrifos, Malathion, and Diazinon. These pesticides inhibit acetylcholinesterase, which affects the nervous system.

2. Carbamates: Examples include Carbaryl, Aldicarb, and Carbofuran. Similar to organophosphates, they also inhibit acetylcholinesterase but are generally less persistent.

3. Pyrethroids: Examples include Permethrin, Cypermethrin, and Deltamethrin. These are synthetic versions of natural pyrethrins and affect sodium channels in nerve cells.

4. Neonicotinoids: Examples include Imidacloprid, Thiamethoxam, and Clothianidin. They affect nicotinic acetylcholine receptors in insects, impacting the nervous system.

5. Organochlorines: Examples include DDT, Lindane, and Aldrin. These are persistent in the environment and accumulate in fatty tissues. Their use has been largely banned due to harmful effects.

6. Phenoxy Herbicides: Examples include 2,4-D and MCPA. They disrupt plant hormone function and are used to control broadleaf weeds.

7. Triazines: Examples include Atrazine and Simazine. They inhibit photosynthesis in plants.

8. Glyphosate: Glyphosate is the active ingredient in Roundup and inhibits an enzyme essential for plant growth.

9. Dinitroanilines: Examples include Trifluralin and Pendimethalin. They inhibit root growth in plants and are used as pre-emergent herbicides.

10. Biological Pesticides: These include various bacteria (e.g., Bacillus thuringiensis), fungi, and viruses. They are derived from natural sources and are often more specific in their action.