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. 4, No. 2 ( 2021-05-28), p. 115-126
Abstract:
A new method based on LC-ICP-MS technique has been developed and validated for & nbsp;the simultaneous determination of borax and polyphosphates (phosphate, pyrophosphate, & nbsp;tripolyphosphate) in foods. The analytes were extracted from the samples with 18 mM & nbsp;sulfuric acid solution using ultrasonic vibration extraction technique before being filtered and & nbsp;analyzed by LC-ICP-MS system. The method was validated with calibration curves that have & nbsp;the coefficient of determination (R2) higher than 0.995. The method limits of detection (LOD) & nbsp;of borax, phosphate, pyrophosphate (Pyro-P), and tripolyphosphate (Tripoly-P) were in the & nbsp;range of 2.5 to 15.0 mg/kg. The recoveries were in the range of 86.0 to 107.0% and the relative & nbsp;standard deviations were below 5.23%. A total of 83 samples of cereal, meat, and seafood-based & nbsp;food were analyzed for research purposes. The results did not indicate a risk of using borax & nbsp;and polyphosphates in most rice products. Meanwhile, meat products including pork paste and & nbsp;roasted pork sold in traditional markets had a borax detection rate of over 60%. This study & nbsp;showed that there was still a risk of using borax in food processing and the use of polyphosphates & nbsp;in food products collected in some districts in Hanoi city.
Type of Medium:
Online Resource
ISSN:
2615-9252
DOI:
10.47866/2615-9252/vjfc.3788
Language:
Unknown
Publisher:
Vietnamese Journal of Food Control, National Institute for Food Control
Publication Date:
2021
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