Two-phase and three-phase liquid-phase microextraction of hydrochlorothiazide and triamterene in urine samples

2015 ◽  
Vol 30 (7) ◽  
pp. 1022-1028 ◽  
Author(s):  
Homayon Ahmad Panahi ◽  
Maryam Ejlali ◽  
Monireh Chabouk
Keyword(s):  
Liquid Phase ◽  
Urine Samples ◽  
Two Phase ◽  
Liquid Phase Microextraction ◽  
Three Phase ◽  
Phase Liquid

scholarly journals Axial dispersion of the liquid phase on a three-phase Karr reciprocating plate column

2004 ◽  
Vol 69 (7) ◽  
pp. 581-599 ◽  
Author(s):  
Ljubisa Nikolic ◽  
Vesna Nikolic ◽  
Vlada Veljkovic ◽  
Miodrag Lazic ◽  
Dejan Skala
Keyword(s):  
Liquid Phase ◽  
Gas Flow ◽  
Dispersion Coefficient ◽  
Solid Phase ◽  
Axial Dispersion ◽  
Two Phase ◽  
Three Phase ◽  
Phase Liquid ◽  
Similar Equation ◽  
Plate Column

The influence of the gas flow rate and vibration intensity in the presence of the solid phase (polypropylene spheres) on axial mixing of the liquid phase in a three phase (gas-liquid-solid) Karr reciprocating plate column (RPC) was investigated. Assuming that the dispersionmodel of liquid flow could be used for the real situation inside the column, the dispersion coefficient of the liquid phase was determined as a function of different operating parameters. For a two-phase liquid-solid RPC the following correlation was derived: DL = 1.26(Af)1.42 UL 0.51 ?S 0.23 and a similar equation could be applied with ? 30 % confidence for the calculation of axial dispersion in the case of a three-phase RPC: DL = 1.39(Af)0.47 UL0.42UG0.03 ?S -0.26.

Selective three-phase liquid phase microextraction of acidic compounds from foodstuff simulants

2008 ◽  
Vol 1198-1199 ◽  
pp. 38-44 ◽  
Author(s):  
A. Rodríguez ◽  
S. Pedersen-Bjergaard ◽  
K.E. Rasmussen ◽  
C. Nerín
Keyword(s):  
Liquid Phase ◽  
Liquid Phase Microextraction ◽  
Three Phase ◽  
Phase Liquid ◽  
Acidic Compounds
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