In:
Heavy metals and arsenic concentrations in water, agricultural soil, and rice in Ngan Son district, Bac Kan province, Vietnam, Vietnamese Journal of Food Control, National Institute for Food Control, Vol. 5, No. 3 ( 2022-09-12), p. 402-413
Abstract:
Currently, solid phase extraction (SPE) with immunoaffinity columns is applied in & nbsp;most standardized methods for mycotoxin determination to purify extracts and analysis by & nbsp;HPLC-FLD, HPLC-UV/VIS or LC-MS/MS. Therefore, sample preparation and analysis by & nbsp;instruments are time-consuming and high operating costs. The novel method allow & nbsp;simultaneously identify nine mycotoxin compounds with selective, stable and accurate & nbsp;results. The new method has been evaluated through three stages including validation as & nbsp;requirements of CEN/TR 16059:2010 (phase 1), comparison with current standard methods & nbsp;(phase 2), evaluate the method using an interlaboratory comparison program (phase 3). Cereal samples were extracted by QuEChERS and analyzed by LC-MS/MS. The limit & nbsp;of quantitation (LOQ) was 0,5 & mu;g/kg for each aflatoxin compound and 40 & mu;g/kg, 25 & mu;g/kg, & nbsp;1 & mu;g/kg, 75 & mu;g/kg for & nbsp;deoxynivalenol, zearalenone, ochratoxin A, each toxin fumonisin (B1 & amp;B2), respectively. The recovery is in the range of 70-120%, relative standard deviation & nbsp;RSD & lt; 20%. The novel method also gives the same results compared to the individual & nbsp;standardized methods, using the immunoaffinity column in the extraction stage. At the & nbsp;present, the method is being evaluated through an interlaboratory comparison program with & nbsp;two rounds: round 1 (for survey) and round 2 (official round), which is expected to be & nbsp;implemented in 2022. & nbsp;
Type of Medium:
Online Resource
ISSN:
2615-9252
DOI:
10.47866/2615-9252/vjfc.3959
Language:
Unknown
Publisher:
Vietnamese Journal of Food Control, National Institute for Food Control
Publication Date:
2022
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