Development of a certified reference material for the determination of acrylamide in potato chips

Analytical and Bioanalytical Chemistry
Byungjoo KimHun-Young So

Abstract

A certified reference material (CRM), KRISS CRM 108-10-003, has been developed for analysis of acrylamide in potato chips, as a representative of carbohydrate-rich food cooked in high-temperature oil. The material was prepared by grinding commercially available potato chips to a paste which was then homogenized, bottled in 15-g units, and stored at -70 °C. Certification, homogeneity and stability testing, were carried out by liquid chromatography-isotope-dilution mass spectrometry (ID-LC-MS). A single ID-LC-MS measurement was performed for each of 10 selected units for certification and homogeneity assessment. The mean measurement result for the 10 bottles, 0.455 ± 0.012 mg kg(-1), was assigned as the certified value of the CRM. The between-bottle homogeneity was 0.8% of the certified value. The within-bottle homogeneity, tested by measuring three replicate sub-samples from each of three randomly selected bottles, was similar to the between-bottle homogeneity. The stability of the CRM under storage conditions (-70 °C) was tested for 21 months and no change in the acrylamide content was observed within the measurement uncertainty. Stability of the CRM at -20 °C (storage at user's site) and room temperature (for regular use and t...Continue Reading

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Citations

Jun 3, 2020·Analytical and Bioanalytical Chemistry·Sebastian RecknagelAngelika Witt
Aug 4, 2019·Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences·Thi Thanh Huong TranJi-Seon Jeong

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