| Literature DB >> 25577080 |
Ahmet C Gören1, Gökhan Bilsel2, Adnan Şimşek2, Mine Bilsel2, Fatma Akçadağ2, Kevser Topal2, Hasan Ozgen3.
Abstract
High Performance Liquid Chromatography LC-UV and LC-MS/MS methods were developed and validated for quantitative analyses of sodium benzoate and potassium sorbate in foods and beverages. HPLC-UV and LC-MS/MS methods were compared for quantitative analyses of sodium benzoate and potassium sorbate in a representative ketchup sample. Optimisation of the methods enabled the chromatographic separation of the analytes in less than 4 min. A correlation coefficient of 0.999 was achieved over the measured calibration range for both compounds and methods (HPLC and LC-MS/MS). The uncertainty values of sodium benzoate and potassium sorbate were found as 0.199 and 0.150 mg/L by HPLC and 0.072 and 0.044 mg/L by LC-MS/MS, respectively. Proficiency testing performance of Turkish accredited laboratories between the years 2005 and 2013 was evaluated and reported herein. The aim of the proficiency testing scheme was to evaluate the performance of the laboratories, analysing benzoate and sorbate in tomato ketchup.Entities:
Keywords: Food additives; HPLC–UV; Ketchup; LC–MS/MS; Method validation; Orange juice; Potassium sorbate; Proficiency testing; Sodium benzoate; Uncertainty budget
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Year: 2014 PMID： 25577080 DOI： 10.1016/j.foodchem.2014.11.094
Source DB: PubMed Journal: Food Chem ISSN： 0308-8146 Impact factor: 7.514