Reagent for detecting formaldehyde in food and preparation method thereof

A technology of formaldehyde and reagents, which is applied in the field of reagents for detecting formaldehyde in food and its preparation, can solve the problems of complex operation, cumbersome process, inconvenient promotion and use, etc., and achieve the effect of simple preparation process, simple formaldehyde content, and good water-soluble stability

Inactive Publication Date: 2018-11-06
SHANDONG WUZHOU DETECTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because formaldehyde has anti-corrosion and fresh-keeping functions and increases the fragility of body tissues, some unscrupulous manufacturers add formaldehyde to water-based foods in order to prolong the storage time and improve the taste.
At present, the detection method of formaldehyde in food has complicated operation, cumbersome process, and requires professionals to measure, which is not easy to promote and use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A reagent for detecting formaldehyde in food, consisting of the following raw materials in parts by weight: 2 parts of sodium periodate, 1 part of potassium hydroxide, 2 parts of petroleum ether, 0.5 parts of sodium benzoate, 3 parts of sodium pyrosulfate, and sodium thiosulfate 0.5 parts, 15 parts of absolute ethanol, 5 parts of methyl dihydrojasmonate, 2 parts of tea polyphenols, 0.4 parts of p-sulfonamide benzoic acid, 2 parts of disodium edetate, 1 part of acetylacetone, twelve parts 1 part of disodium hydrogen phosphate water, 0.1 part of luminol, 1 part of bile alum, 2.5 parts of oxalic acid, 3 parts of sodium lauryl sulfate, 8 parts of ginkgo biloba, 2.5 parts of polyacrylamide, 6 parts of diatomaceous earth, ten parts 3 parts of hexaalkyltrimethylammonium chloride, 1.5 parts of lead acetate, 2 parts of fuchsin sulfite, 50 parts of distilled water.

[0024] The preparation method of the reagent of described detection formaldehyde in food, concrete steps are as fo...

Embodiment 2

[0032] A reagent for detecting formaldehyde in food, consisting of the following raw materials in parts by weight: 2.5 parts of sodium periodate, 1.5 parts of potassium hydroxide, 2.5 parts of petroleum ether, 0.8 parts of sodium benzoate, 3.5 parts of sodium pyrosulfate, and sodium thiosulfate 1 part, 16 parts of absolute ethanol, 6 parts of methyl dihydrojasmonate, 2.5 parts of tea polyphenols, 0.5 parts of p-sulfonamide benzoic acid, 2.5 parts of disodium edetate, 1.5 parts of acetylacetone, 12 parts 1.2 parts of disodium hydrogen phosphate water, 0.15 parts of luminol, 1.5 parts of bile alum, 3 parts of oxalic acid, 3.2 parts of sodium lauryl sulfate, 9 parts of ginkgo biloba, 2.8 parts of polyacrylamide, 7 parts of diatomaceous earth, ten Hexaalkyltrimethylammonium chloride 3.5 parts, lead acetate 2 parts, sulfite fuchsin 2.5 parts, distilled water 55 parts.

[0033] The preparation method of the reagent of described detection formaldehyde in food, concrete steps are as f...

Embodiment 3

[0041] A reagent for detecting formaldehyde in food, consisting of the following raw materials in parts by weight: 3 parts of sodium periodate, 2 parts of potassium hydroxide, 3 parts of petroleum ether, 1 part of sodium benzoate, 4 parts of sodium pyrosulfate, and sodium thiosulfate 1.5 parts, 18 parts of absolute ethanol, 8 parts of methyl dihydrojasmonate, 3 parts of tea polyphenols, 0.6 parts of p-sulfonamide benzoic acid, 3 parts of disodium edetate, 2 parts of acetylacetone, 12 parts 1.5 parts of disodium hydrogen phosphate water, 0.2 parts of luminol, 2 parts of bile alum, 3.5 parts of oxalic acid, 3.5 parts of sodium lauryl sulfate, 10 parts of ginkgo biloba, 3 parts of polyacrylamide, 8 parts of diatomaceous earth, ten parts 4 parts of hexaalkyltrimethylammonium chloride, 2.5 parts of lead acetate, 3 parts of fuchsin sulfite, 60 parts of distilled water.

[0042] The preparation method of the reagent of described detection formaldehyde in food, concrete steps are as f...

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PUM

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Abstract

The invention discloses a reagent for detecting formaldehyde in food. The reagent is prepared from the following raw materials in parts by weight: sodium periodate, potassium hydroxide, petroleum ether, sodium benzoate, sodium pyrosulfate, sodium thiosulfate, anhydrous ethanol, methyl dihydrojasmonate, tea polyphenol, carzenide, disodium edetate, acetylacetone, disodium hydrogen phosphate dodecahydrate, luminol, chalcanthite, oxalic acid, lauryl sodium sulfate, ginkgo leaf, polyacrylamide, diatomaceous earth, cetyltrimethylammonium chloride, lead acetate, fuchsin sulfite, and distilled water.The raw materials are widely available, the preparation process is simple, and the reagent can be used to effectively detect formaldehyde in food and to determine the content of formaldehyde in food very simply and fast with low cost, can be operated by non-professionals, has the characteristics of high reaction speed, high sensitivity and stable water solubility and meets the usage requirements of people.

Description

technical field [0001] The invention relates to the technical field of food detection, in particular to a reagent for detecting formaldehyde in food and a preparation method thereof. Background technique [0002] Formaldehyde is a colorless gas with a pungent smell and is easily soluble in water. It is also called formaldehyde. The product of formaldehyde solution with a volume fraction of 35% to 40% is formalin, which is mainly used in disinfectants and antiseptics. It is also an important chemical raw material. Formaldehyde is a highly toxic substance, ranking second on the effective control list of toxic chemicals in my country. [0003] The impact of formaldehyde on human health includes abnormal sense of smell, stimulation, allergy, abnormal lung function, abnormal liver function, abnormal immune function, central nervous system, and damage to the genetic material in cells. It is a suspected carcinogen. The most sensitive ones are the sense of smell and stimulation, s...

Claims

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Application Information

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IPC IPC(8): G01N21/77
CPCG01N21/77G01N2021/775
Inventor 王涛宋美娟王玮楠
Owner SHANDONG WUZHOU DETECTION
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