Dispersive liquid–liquid microextraction followed by high-performance liquid chromatography as an efficient and sensitive technique for simultaneous determination of …

H Chen, H Chen, J Ying, J Huang, L Liao - Analytica chimica acta, 2009 - Elsevier
Dispersive liquid–liquid microextraction (DLLME) coupled with high-performance liquid
chromatography-variable wavelength detector (HPLC-VWD) was developed for extraction
and determination of chloramphenicol (CAP) and thiamphenicol (THA) in honey. In this
extraction method, 1.0 mL of acetonitrile (as dispersive solvent) containing 30μL 1, 1, 2, 2-
tetrachloroethane (as extraction solution) was rapidly injected by syringe into a 5.00-mL
water sample containing the analytes, thereby forming a cloudy solution. After extraction …

Dispersive liquid–liquid microextraction followed by high-performance liquid chromatography-diode array detection as an efficient and sensitive technique for …

MA Farajzadeh, M Bahram, JÅ Jönsson - Analytica Chimica Acta, 2007 - Elsevier
Dispersive liquid–liquid microextraction (DLLME) and high performance liquid
chromatography-diode array detection (HPLC-DAD) was presented for extraction and
determination of Irganox 1010, Irganox 1076 and Irgafos 168 (antioxidants) in aqueous
samples. Carbon tetrachloride at microliter volume level and acetonitrile were used as
extraction and dispersive solvents, respectively. The main advantages of method are high
speed, high enrichment factor, high recovery, good repeatability and extraction solvent …