3-Monochloropropane-1,2-diol Monoesters Food Contaminant Analysis in Palm Oil-Based Food Samples Using C18-Dispersive Solid-Phase Extraction Coupled with GC-FID

Author(s):  
Nur Hasanah Mohd Jumali ◽  
Shangeetha Ganesan ◽  
Noorfatimah Yahaya ◽  
Mazidatulakmam Miskam
2017 ◽  
Vol 2017 ◽  
pp. 1-16 ◽  
Author(s):  
Gabriela Islas ◽  
Israel S. Ibarra ◽  
Prisciliano Hernandez ◽  
Jose M. Miranda ◽  
Alberto Cepeda

To achieve analytical success, it is necessary to develop thorough clean-up procedures to extract analytes from the matrix. Dispersive solid phase extraction (DSPE) has been used as a pretreatment technique for the analysis of several compounds. This technique is based on the dispersion of a solid sorbent in liquid samples in the extraction isolation and clean-up of different analytes from complex matrices. DSPE has found a wide range of applications in several fields, and it is considered to be a selective, robust, and versatile technique. The applications of dispersive techniques in the analysis of veterinary drugs in different matrices involve magnetic sorbents, molecularly imprinted polymers, carbon-based nanomaterials, and the Quick, Easy, Cheap, Effective, Rugged, and Safe (QuEChERS) method. Techniques based on DSPE permit minimization of additional steps such as precipitation, centrifugation, and filtration, which decreases the manipulation of the sample. In this review, we describe the main procedures used for synthesis, characterization, and application of this pretreatment technique and how it has been applied to food analysis.


2017 ◽  
Vol 9 (14) ◽  
pp. 2211-2219 ◽  
Author(s):  
Davood Bigdelifam ◽  
Mahdi Hashemi ◽  
Parvin Zohrabi ◽  
Mahdiyeh Sadeghpour ◽  
Ehsan Radaee

Magnetic dispersive solid phase extraction with modified magnetic nanoparticles has been developed for the detection of palm oil in milk samples.


2015 ◽  
Vol 8 (8) ◽  
pp. 1979-1989 ◽  
Author(s):  
Malihe Davudabadi Farahani ◽  
Farzaneh Shemirani ◽  
Negin Fasih Ramandi ◽  
Maysam Gharehbaghi

2020 ◽  
Vol 12 (48) ◽  
pp. 5852-5860
Author(s):  
Luying Liu ◽  
Yanxia Ma ◽  
Xiaoting Zhang ◽  
Xixiang Yang ◽  
Xiaogang Hu

Highly selective separation of trace bio-toxins in food samples has long been a hot topic pursued by analytical chemists.


2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Elham Sobhanzadeh ◽  
Keivan Nemati

An evaluation of the extraction of multiresidue pesticides from palm oil by liquid-liquid extraction/low-temperature purification (LLE/LTP) coupled with dispersive solid-phase extraction (d-SPE) as the cleanup procedure with the determination by liquid chromatography mass spectrometry using electrospray as the ionization source (LC-ESI-MS) was carried out. Optimization approaches were studied in terms of d-SPE to select efficiency of type and mass of adsorbents to obtain the highest recovery yield of pesticides and the lowest coextract fat residues in the final extract. The optimal conditions of d-SPE were obtained using 3 g of palm oil, 4 g anhydrous MgSO4, 150 mg of PSA, and 50 mg of GCB (PSA: GCB (3 : 1 w/w)). Recovery study was performed at three concentration levels (25, 50, and 100 ng kg−1), yielding recovery rates between 71.8 and 112.4% except diuron with relative standard deviations of 3.2–15.1%. Detection and quantification limits were lower than 2.7 and 8.2 ng kg−1, respectively. The proposed method was successfully applied to the analysis of market-purchased palm oil samples from two different brands collected in Kuala Lumpur, showing its potential applicability and revealing the presence of some of the target species in the ng g−1range.


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