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di-(2-ethylhexyl)phosphoric acid 1

extraction equilibrium 1

flame atomic absorption spectrometry 1

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mass transfer coefficient 1

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A microextraction approach for rapid extraction and separation of Mn(II) and Co(II) using saponified

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 6, Pages 963-972 doi: 10.1007/s11705-021-2081-7

Abstract: In this paper, we proposed a microextraction approach for the extraction and separation of Mn(II) andThe microextraction approach greatly enhances the mass transfer while enabling a continuous and controllableThe microextraction approach has a good applicability in the spent lithium-ion battery cathode materials

Keywords： extraction equilibrium mass transfer coefficient microextraction multicomponent extraction di-(2-

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Ultrasound-assisted emulsification solidified floating organic drop microextraction for the determination

Qingyun CHANG, Jingwen ZHANG, Xin DU, Jingjun MA, Jingci LI,

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 2, Pages 187-195 doi: 10.1007/s11783-010-0030-7

Abstract: A simple and efficient liquid-phase microextraction (LPME) technique was developed using ultrasound-assistedemulsification solidified floating organic drop microextraction (USAE-SFODME) combined with flame atomicMicroextraction efficiency factors (including extraction solvent type, extraction volume, time, temperature

Keywords： ultrasound-assisted emulsification solidified floating organic drop microextraction flame atomic absorption

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Trace analysis of off-flavor/odor compounds in water using liquid-liquid microextraction coupled with

Jian LU,Paul S. WILLS,P. CHRIS WILSON

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 3, Pages 477-481 doi: 10.1007/s11783-015-0820-z

Abstract: A rapid, inexpensive and laboratory friendly method was developed for analysis of off-flavor/odor compounds in fresh and salt water using gas chromatography with chemical ionization-tandem mass spectrometry. Off-flavor/odor compounds included geosmin, 2-methylisoborneol (MIB), 2-isobutyl-3-methyoxypyrazine (IBMP), and 2-isopropyl-3-methoxypyrazine (IPMP). Using this method, a single sample can be extracted within minutes using only 1 mL of organic solvent. The ion transitions for IPMP, IBMP, MIB, and geosmin were 153>121, 167>125, 152>95, and 165>109, respectively. The linearity of this method for analyzing MIB ranged from 4 to 200 ng·L , and from 0.8 to 200 ng·L for the other analytes. Method recoveries ranged from 97% to 111% and percent relative standard deviations ranged from 3% to 9%, indicating that the method is accurate, precise, and reliable.

Keywords： off-flavor/odor compounds liquid-liquid microextraction gas chromatography-tandem mass spectrometry