An electrochemical method for detecting butyl hydroxyanisole antioxidant

A technology of butylated hydroxyanisole and butylated hydroxyanisole, which is applied in the field of electrochemical analysis and detection, can solve the problems of high purchase and use costs of chromatographs, high professional requirements for testing personnel, and difficulty in realizing miniaturization, etc. The effect of stability, improved detection sensitivity, and wide linear range

Active Publication Date: 2022-03-22
GUANGXI ZHUANG AUTONOMOUS REGION ACAD OF AGRI SCI
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Problems solved by technology

[0003] Chromatography is a common method for the determination of BHA at present, with high sensitivity and accuracy, but the high cost of purchasing and using chromatographs, cumbersome operations, high professional requirements for testing personnel, and difficulty in miniaturization limit its application in small businesses and Application in field testing

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  • An electrochemical method for detecting butyl hydroxyanisole antioxidant
  • An electrochemical method for detecting butyl hydroxyanisole antioxidant
  • An electrochemical method for detecting butyl hydroxyanisole antioxidant

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Embodiment 1

[0027] Butylated hydroxyanisole antioxidant in the detection sample of embodiment 1

[0028] (1) First prepare the ILs / CPE electrode according to the following two steps:

[0029] (a) Preparation of bare carbon paste electrode: first grind the graphite powder for half an hour, add 0.1 mL of liquid paraffin dropwise to 1.0 g of the ground graphite powder, and continue grinding until a paste is obtained, and press the paste into In the carbon paste electrode shell connected with copper wire, ground and polish it on clean weighing paper to get a bare carbon paste electrode;

[0030] (b) Preparation of ILs / CPE electrode: 5.0 μL of 3 mg / mL ionic liquid 1-carboxymethyl-3-methylimidazolium tetrafluoroborate (ILs) was dropped onto the bare carbon prepared in step (a) Paste the surface of the electrode and dry it in the air for 1 min to obtain an ILs / CPE electrode;

[0031] (2) Preparation of standard solution: Weigh a certain amount of butylated hydroxyanisole solid and dissolve wit...

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Abstract

The invention discloses an electrochemical method for detecting butylhydroxyanisole antioxidants: first prepare ILs / CPE electrode, prepare butylhydroxyanisole standard solution, and combine ILs / CPE electrode, saturated calomel electrode and platinum wire electrode The composed three-electrode system was inserted into the electrolytic cell of the standard solution of butylated hydroxyanisole, and the data was collected to obtain the standard curve and linear equation of butylated hydroxyanisole; in the actual detection process of butylated hydroxyanisole, the three-electrode system Insert the sample to be tested, and substitute the measured data into the linear equation to calculate the content of butyl hydroxyanisole in the sample to be tested. The detection method of the invention has high sensitivity, simple method, low cost, high sensitivity, wide linear range and good practicability.

Description

technical field [0001] The invention belongs to the technical field of electrochemical analysis and detection, and relates to an electrochemical method for detecting butyl hydroxyanisole antioxidant. Background technique [0002] Butylated hydroxyanisole (BHA) is a phenolic compound widely used in food antioxidants, which can hinder the oxidation of fatty foods. BHA is non-toxic in a certain concentration, but excessive consumption will cause adverse effects on the human body. At present, my country's "Standards for the Use of Food Additives" (GB 2760-2014) stipulates that the use limit of BHA in nuts, instant noodle products, miscellaneous grain powder, biscuits, cured meat products, solid compound seasonings and puffed foods shall not exceed 0.2g / kg . Studies have shown that the metabolites of BHA may be carcinogenic, so it is of great significance to accurately detect the amount of BHA added in food. Therefore, it is of great practical significance to establish a simple...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/30G01N27/416G01N27/48
CPCG01N27/308G01N27/4163G01N27/48
Inventor 罗丽红牙禹闫飞燕蒋翠文王静郑鹭飞谢丽萍李焘王彦力
Owner GUANGXI ZHUANG AUTONOMOUS REGION ACAD OF AGRI SCI
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