Enrichment of tetracycline residues from honey samples using carrier mediated hollow fibre liquid phase micro‐extraction and quantification on the LC‐Q‐TOF / MS

2021 ◽  
Author(s):  
Babra Moyo ◽  
Nikita T Tavengwa
Keyword(s):  
Liquid Phase ◽  
Hollow Fibre ◽  
Tetracycline Residues ◽  
Tof Ms

scholarly journals Application of Hollow Fibre-Liquid Phase Microextraction Technique for Isolation and Pre-Concentration of Pharmaceuticals in Water

Membranes ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 311
Author(s):  
Lawrence Mzukisi Madikizela ◽  
Vusumzi Emmanuel Pakade ◽  
Somandla Ncube ◽  
Hlanganani Tutu ◽  
Luke Chimuka
Keyword(s):  
Liquid Phase ◽  
Solid Phase ◽  
Deep Eutectic Solvents ◽  
Enrichment Factors ◽  
Hollow Fibre ◽  
Phase System ◽  
Phase Extraction ◽  
Liquid Phase Microextraction ◽  
Three Phase ◽  
Set Up

In this article, a comprehensive review of applications of the hollow fibre-liquid phase microextraction (HF-LPME) for the isolation and pre-concentration of pharmaceuticals in water samples is presented. HF-LPME is simple, affordable, selective, and sensitive with high enrichment factors of up to 27,000-fold reported for pharmaceutical analysis. Both configurations (two- and three-phase extraction systems) of HF-LPME have been applied in the extraction of pharmaceuticals from water, with the three-phase system being more prominent. When compared to most common sample preparation techniques such as solid phase extraction, HF-LPME is a greener analytical chemistry process due to reduced solvent consumption, miniaturization, and the ability to automate. However, the automation comes at an added cost related to instrumental set-up, but a reduced cost is associated with lower reagent consumption as well as shortened overall workload and time. Currently, many researchers are investigating ionic liquids and deep eutectic solvents as environmentally friendly chemicals that could lead to full classification of HF-LPME as a green analytical procedure.

Multivariate optimization of the hollow fibre liquid phase microextraction of muscimol in human urine samples

2016 ◽  
Vol 1033-1034 ◽  
pp. 372-381 ◽  
Author(s):  
Somandla Ncube ◽  
Anna Poliwoda ◽  
Hlanganani Tutu ◽  
Piotr Wieczorek ◽  
Luke Chimuka
Keyword(s):  
Liquid Phase ◽  
Human Urine ◽  
Hollow Fibre ◽  
Urine Samples ◽  
Multivariate Optimization ◽  
Liquid Phase Microextraction ◽  
Human Urine Samples
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