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[Rapid Screening of Acidity Regulators in Dairy by Ion Chromatography-High Resolution Mass Spectrometry]

[Rapid Screening of Acidity Regulators in Dairy by Ion Chromatography-High Resolution Mass Spectrometry]

Huan Yun, Xin Liu, Jie Cui, Jing Yang, Ying Liu

Se Pu. 2017 Aug 8;35(8):886-890.

PMID: 29048826

Abstract:

A method for screening of acidity regulators in dairy based on ion chromatography-high resolution mass spectrometry technology (IC-HRMS) was set up. The dairy samples were extracted by KOH (pH 7-8) and Oasis MAX SPE column, and separated by a Dionex IonPac AS11-HC column (250 mm×4 mm). All the acidity regulators were detected by Orbitrap full scan mode. Taking six organic acids as an example, the calibration curves showed good linearities in the range of 0.05-5.00 mg/L, and the correlation coefficients (r) were higher than 0.99. By detecting the spiked samples, the recoveries were in the range of 74.3%-115.5% with the relative standard deviations (RSDs) between 0.64% and 4.81%. Malic acid, citric acid, lactic acid, succinic acid and adipic acid could be detected by IC-HRMS in the commercial dairy samples. The results indicate that the method is simple, rapid and suitable for the qualitative screening of acidity regulators in dairy products.

Chemicals Related in the Paper:

Catalog Number	Product Name	Price
AS23103	Malate Standard for IC	Price
AS23110	Adipate Standard for IC	Price
AS23112	Succinate Standard for IC	Price

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