scholarly journals Development and Validation of a UHPLC-qTOF MS Method for the Determination of Sorbitol-Based Nuclear Clarifying Agents in Food Simulants after Migration from Food Contact Materials

2021 ◽  
Vol 11 (9) ◽  
pp. 3789
Author(s):  
Emmanouil D. Tsochatzis ◽  
Georgios Theodoridis ◽  
Helen G. Gika

Nuclear clarifying agents (NCAs) are a class of substances frequently used as additives in the production of polymers to improve their physical properties. Some are EU regulated under Commission Regulation (EU) no. 10/2011 can be used as additives in the production of food contact plastics. However, limited analytical methods for their analysis are currently available, in part due to poor solubility in most common organic solvents and lack of analytical standards of known purity. In this work, a simple and sensitive method was developed to analyze 4 EU-regulated sorbitol-based nucleating agents in food simulants, following solubility studies to establish effective solvents. The method was shown to be accurate and precise and can be used with official food simulant D1 (50% v/v ethanol/H2O). Application to other ethanolic simulants is also possible, but due to solubility issues, a posteriori conversion of those simulants into simulant D1 is required. Finally, the method was applied to quantify the target analytes in simulants after migration testing with polypropylene (PP) beverage cups.

2000 ◽  
Vol 83 (2) ◽  
pp. 311-319 ◽  
Author(s):  
Jesús Simal-Gándara ◽  
Miguel Sarria-Vidal ◽  
Rinus Rijk

Abstract A liquid chromatographic method with evaporative mass detection (EMD) is described for the determination of paraffins in food contact materials that do not contain polyolefin oligomers, or paraffins migrating from these materials into fatty food simulants or certain simple foods. A normal-phase column operating at maximum column efficiency separates nonparaffinic and paraffinic materials without resolving the latter into individual components, and EMD is used to quantitate the paraffins. An on-line qualitative method that uses liquid chromatography/gas chromatography with flame ionization detection discriminates between paraffin waxes and oils in food contact materials, food simulants, and certain simple foods; a Fourier transform infrared spectrophotometric qualitative method also discriminates between waxes and oils, but is usually restricted to food contact materials that do not contain polyolefins and to migration experiments with organic solvents as fatty food simulants (with some other fatty food simulants, paraffin type must then be identified in the food contact material).


1992 ◽  
Vol 9 (2) ◽  
pp. 137-148 ◽  
Author(s):  
A. Baner ◽  
W. Bieber ◽  
K. Figge ◽  
R. Franz ◽  
O. Piringer

2010 ◽  
Vol 93 (2) ◽  
pp. 389-399 ◽  
Author(s):  
Alaa Kamel ◽  
Yaorong Qian ◽  
Elizabeth Kolbe ◽  
Charles Stafford

Abstract A multiresidue method was developed and validated for the determination of 13 neonicotinoid pesticides and metabolites, and nine macrocyclic lactone pesticides and veterinary drugs using SPE and ultra-performance liquid chromatography/MS/MS. The method was validated in milk, orange, spinach, apple, plum, watermelon, green bean, zucchini, broccoli, strawberry, grape, and tomato by analyzing replicates of residue-free control samples fortified with a mixture of 22 target analytes at three concentration levels. The recoveries of the analytes from the fortified matrixes were mostly within 70120, except for some of the neonicotinoid metabolites. The LOD values varied by analyte and matrix and ranged between 0.0012 ng/g. The developed method was successful in combining two widely different classes of compounds into a single analysis.


The Analyst ◽  
2020 ◽  
Vol 145 (8) ◽  
pp. 2892-2896
Author(s):  
Xianshuang Meng ◽  
Yueguang Lv ◽  
Qing Lv ◽  
Yulin Deng ◽  
Hua Bai ◽  
...  

A methodology is presented for the determination of pyrethroid preservatives in wooden food contact materials using DART coupled with quadrupole-Orbitrap HRMS.


2016 ◽  
Vol 64 (46) ◽  
pp. 8866-8875 ◽  
Author(s):  
Marjeta Česen ◽  
Dimitra Lambropoulou ◽  
Maria Laimou-Geraniou ◽  
Tina Kosjek ◽  
Urška Blaznik ◽  
...  

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