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Continue to ChatA new ultrasound-assisted liquid-liquid microextraction method utilizing a switchable hydrophilicity solvent for spectrophotometric determination of nitrite in food samples - https://avesis.cumhuriyet.edu.tr/yayin/28078015-b18b-4661-bb65-a3dcad2f50ce/a-new-ultrasound-assisted-liquid-liquid-microextraction-method-utilizing-a-switchable-hydrophilicity-solvent-for-spectrophotometric-determination-of-nitrite-in-food-samples