Reagent for rapid detection of formaldehyde in food and preparation method thereof

A detection reagent and technology for formaldehyde, which is applied to the field of rapid detection of formaldehyde in food and its preparation field, can solve problems such as damage, and achieve the effects of fast reaction speed, good stability and high accuracy.

Active Publication Date: 2020-07-28
SHANDONG WUZHOU DETECTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, formaldehyde in food can cause great damage to people, and it is of great significance to provide a detection reagent for formaldehyde in food

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A rapid detection reagent for formaldehyde in food, comprising the following raw materials in parts by weight: 10 parts of sodium periodate, 1 part of calcium hydroxide, 8 parts of petroleum ether, 3 parts of methyl dihydrojasmonate, 4 parts of sodium silicate 2 parts of tea polyphenols, 0.1 part of p-sulfonamide benzoic acid, 1 part of ferrous nitrate, 2 parts of succinic acid, 0.1 part of sodium stearate, 3 parts of disodium edetate, 1 part of zinc sulfite , 0.2 parts of sodium acetate, 1 part of acetylacetone, 10 parts of absolute ethanol, and 25 parts of water.

[0018] A preparation method of a rapid detection reagent for formaldehyde in food, comprising the following steps: (1) sodium periodate, petroleum ether, methyl dihydrojasmonate, p-sulfonamide benzoic acid, ferrous nitrate, succinic acid , sodium stearate, acetylacetone and absolute ethanol were mixed, and stirred evenly to obtain mixture A; the stirring speed was 200r / min; (2) Tea polyphenols, calcium hydr...

Embodiment 2

[0020] A rapid detection reagent for formaldehyde in food, comprising the following raw materials in parts by weight: 15 parts of sodium periodate, 2 parts of calcium hydroxide, 12 parts of petroleum ether, 8 parts of methyl dihydrojasmonate, and 8 parts of sodium silicate 7 parts of tea polyphenols, 1 part of p-sulfonamide benzoic acid, 3 parts of ferrous nitrate, 5 parts of succinic acid, 1 part of sodium stearate, 8 parts of disodium edetate, 3 parts of zinc sulfite , 2 parts of sodium acetate, 5 parts of acetylacetone, 20 parts of absolute ethanol, and 70 parts of water.

[0021] A preparation method of a rapid detection reagent for formaldehyde in food, comprising the following steps: (1) sodium periodate, petroleum ether, methyl dihydrojasmonate, p-sulfonamide benzoic acid, ferrous nitrate, succinic acid , sodium stearate, acetylacetone and absolute ethanol were mixed, and stirred evenly to obtain mixture A; the stirring speed was 400r / min; (2) Tea polyphenols, calcium h...

Embodiment 3

[0023] A rapid detection reagent for formaldehyde in food, comprising the following raw materials in parts by weight: 12 parts of sodium periodate, 1.5 parts of calcium hydroxide, 10 parts of petroleum ether, 5 parts of methyl dihydrojasmonate, and 6 parts of sodium silicate 5 parts of tea polyphenols, 0.5 parts of p-sulfonamide benzoic acid, 2 parts of ferrous nitrate, 4 parts of succinic acid, 0.6 parts of sodium stearate, 5 parts of disodium edetate, 2 parts of zinc sulfite , 1 part of sodium acetate, 3 parts of acetylacetone, 15 parts of absolute ethanol, and 56 parts of water.

[0024] A preparation method of a rapid detection reagent for formaldehyde in food, comprising the following steps: (1) sodium periodate, petroleum ether, methyl dihydrojasmonate, p-sulfonamide benzoic acid, ferrous nitrate, succinic acid , sodium stearate, acetylacetone and absolute ethanol were mixed, and stirred evenly to obtain mixture A; the stirring speed was 300r / min; (2) tea polyphenols, ca...

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PUM

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Abstract

The invention discloses a rapid detection reagent for formaldehyde in food. The rapid detection reagent is prepared from the following raw materials in parts by weight: 10 to 15 parts of sodium periodate, 1 to 2 parts of calcium hydroxide, 8 to 12 parts of petroleum ether, 3 to 8 parts of methyl dihydrojasmonate, 4 to 8 parts of sodium silicate, 2 to 7 parts of tea polyphenol, 0.1 to 1 part of carboxybenzenesulfonamide, 1 to 3 parts of ferrous nitrate, 2 to 5 parts of succinic acid, 0.1 to 1 part of sodium stearate, 3 to 8 parts of ethylene diamine tetraacetic acid, 1 to 3 parts of zinc sulfite, 0.2 to 2 parts of sodium acetate, 1 to 5 parts of acetylacetone, 10 to 20 parts of anhydrous ethanol and 25 to 70 parts of water. The rapid detection reagent for the formaldehyde in the food, disclosed by the invention, is sensitive to formaldehyde stone powder and can quickly and accurately judge whether the food contains the formaldehyde or not; the rapid detection reagent has the advantagesof high reaction speed, high accuracy rate and good stability.

Description

technical field [0001] The invention relates to a detection reagent, in particular to a rapid detection reagent for formaldehyde in food and a preparation method thereof. Background technique [0002] Formaldehyde is a colorless, highly irritating gas that is volatile. The main hazard of formaldehyde is the stimulation of skin and mucous membranes. When formaldehyde reaches a certain concentration indoors, people will feel uncomfortable. Formaldehyde concentrations greater than 0.08m³ can cause red eyes, itchy eyes, throat discomfort or pain, hoarseness, sneezing, chest tightness, asthma, dermatitis, etc. The human smell threshold for formaldehyde is usually 0.06-0.07mg / m³. However, there are large individual differences, and some people can reach 2.66mg / m³. Long-term, low-concentration exposure to formaldehyde can cause headaches, dizziness, fatigue, sensory disturbances, decreased immunity, and drowsiness, memory loss or neurasthenia, and mental depression; chronic pois...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/02
CPCG01N33/02
Inventor 尤健梁蔚蔚兰志峰
Owner SHANDONG WUZHOU DETECTION
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