E3S Web Conf.
Volume 300, 20212021 2nd International Conference on Energy, Power and Environmental System Engineering (ICEPESE2021)
|Number of page(s)||6|
|Section||Energy and Power Engineering|
|Published online||06 August 2021|
Determination of four additives in cakes by large volume gradient ion chromatography
Xiangtan Institute Food and Drug Control, Xiangtan, 411100
2 Chinese Academic for Environmental Planning, Beijing, 100000
* Corresponding author: Liuyaling127@hotmail.com
This paper aims to establish a detection method for simultaneous determining four additives in flour products: one simultaneously determines the acesulfame, sodium cyclamate, bromate, and calcium propionate through the selection of ion chromatography pump flow rate, injection volume, eluent concentration, optimization of sample pretreatment and the influence of interfering ions. When using the pump flow rate of 0.8 ml/min, 200 µL large volume injection, 0-14 min, 14-25 min eluent concentration 30 mmol/L gradient elution, 25-26 min eluent concentration 6 mmol/L, flour product is pulverized after addition of water vortex ultrasonic extraction, the supernatant by C18 solid phase extraction (SPE) columns and silver filter, 0.22μm water phase porous membrane testing on the machine, the detection limits of the four kinds of targets are 0.16 μg/ml, 0.19 μg/ml, 0.24 μg/ml, and 0.38 μg/ml, respectively; The standard deviations of retention time and peak area are calcium propionate, respectively 0.13~0.42%, 2.14~4.25% ; bromate 0.20~0.67%, 1.33~4.52% ; sodium cyclamate 0.14~0.53%, 3.57~5.62% ; acesulfame potassium 0.64~0.93%, 0.42~5.81%. This method uses water as the sole extraction solvent and can detect four additives in flour products in a single test. And the pretreatment process is also very simple. When it is applied to other food tests, some compounds may cause interference, which can be assisted by other testing methods.
Key words: Ion chromatography / large volume / Gradient elution / Acesulfame potassium / Sodium cyclamate / Bromate / Calcium propionate
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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