scholarly journals Qualitative and Quantitative Determination of COPs in Cypriot Meat Samples Using HPLC Determination of the Most Effective Sample Preparation Procedure

2012 ◽  
Vol 51 (3) ◽  
pp. 286-291 ◽  
Author(s):  
C. A. Georgiou ◽  
C. P. Kapnissi-Christodoulou
Keyword(s):  
Sample Preparation ◽  
Quantitative Determination ◽  
Hplc Determination ◽  
Preparation Procedure ◽  
Qualitative And Quantitative ◽  
Sample Preparation Procedure ◽  
Meat Samples

Application of 31P NMR for added polyphosphate determination in pork meat

2009 ◽  
Vol 63 (4) ◽  
Author(s):  
Aneta Jastrzębska ◽  
Edward Szłyk
Keyword(s):  
Quantitative Determination ◽  
31P Nmr ◽  
Sample Pretreatment ◽  
Phosphorus Compounds ◽  
Pork Meat ◽  
Qualitative And Quantitative ◽  
Minimal Sample ◽  
Meat Samples ◽  
Phosphorus Determination

AbstractApplication of 31P NMR for qualitative and quantitative determination of added phosphorus compounds in meat samples is described. Furthermore, usefulness of the proposed method for monitoring of poly- and pyrophosphates hydrolysis in meat is discussed. Calibration curves based on the 31P resonance line areas were elaborated for Na3P3O9, Na5P3O10, Na2H2P2O7, and K4P2O7 resulting in linearity (R 2 = 0.9976, 0.9953, 0.9974, and 0.9524, respectively), detection limits (DL from 0.0018 mol L−1 for Na3P3O9 to 0.0070 mol L−1 for K4P2O7), and quantification limits (QL from 0.0060 mol L−1 for Na3P3O9 to 0.0234 mol L−1 for K4P2O7). The developed procedure was applied for laboratory prepared meat samples and compared with the standard UV-VIS method. The minimal sample pretreatment, obtained within-day precision (CV ≤ 2.0 %) and accuracy (as recovery ≥ 95 %) suggest 31P NMR as an alternative method of phosphorus determination in food analysis.

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