beta-Endosulfan, 100 µg/ml, Ethyl acetate, 5ml

1,2,4-Trichlorobenzene, 10 µg/ml, Acetonitrile,

(±)-Atenolol-d7 (N-isopropyl-d7),100 µg/mL,MeOH,1mL,

WS Glyphosate