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A simple and sensitive gas chromatography method for the simultaneous determination of esbiothrin and D-acetylene C permethrin in electric-mosquito coils using palmitic acid isopropyl as an internal standard was developed. The electric-mosquito coil samples were extracted with petroleum ether (60–90 °C) and then centrifuged at 2,000 r/min for 2.0 min. The supernatant liquids were collected into a...
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