A rapid detection reagent for distinguishing nitrite and sodium chloride

Abstract

This invention discloses a rapid detection reagent for distinguishing between nitrite and sodium chloride, composed of the following raw materials in parts by weight: inorganic acid, naphthylethylenediamine hydrochloride, and water. This reagent for distinguishing between nitrite and sodium chloride can rapidly differentiate between the two, has a wide range of applications, is simple to operate, and is easy to promote and apply.

Description

Technical Field

[0001] This invention relates to a detection reagent for rapidly distinguishing between nitrite and sodium chloride. Background Technology

[0002] Nitrites are a relatively common chemical substance in nature and are frequently used in the food industry as food additives, such as colorants and preservatives. They are commonly used in meat processing because they inhibit Clostridium botulinum, enhance meat color, and improve flavor. However, excessive nitrites can react with amines in food and be converted into toxic N-nitrosamines, potentially leading to birth defects, cancer, methemoglobinemia in infants (blue baby syndrome), miscarriage, and central nervous system problems. Furthermore, nitrites can combine with hemoglobin in human blood to form methemoglobin, reducing the blood's oxygen-carrying capacity and causing tissue hypoxia.

[0003] Because nitrites look and taste very similar to table salt, they are easily confused during use, which can lead to nitrite poisoning incidents.

[0004] Therefore, during the use of nitrites, labels may become unreadable due to peeling or corrosion, and nitrites look and taste very similar to table salt. There is an urgent need for a reagent and method that can quickly identify and is easy to operate. Because it is simple to operate and identify, it is easy to promote and apply, and it can prevent nitrite poisoning incidents, so the demand potential is large. Summary of the Invention

[0005] This invention provides a rapid detection reagent for distinguishing between nitrite and sodium chloride. The detection reagent is composed of the following components in parts by weight: 8-23 parts of inorganic acid, 0.03-0.1 parts of naphthylethylenediamine hydrochloride, and 77-92 parts of water.

[0006] Preferably, the detection reagent is composed of the following components in parts by weight: 15 parts inorganic acid, 0.06 parts naphthylethylenediamine hydrochloride, and 84 parts water.

[0007] The above-described rapid identification reagents for nitrite and sodium chloride are applied in the rapid identification of nitrite and sodium chloride.

[0008] Take at least 0.05g of the sample to be tested and add it directly to the rapid identification reagent for nitrite and sodium chloride. Shake well and observe the color change of the solution. When the sample to be tested is nitrite, the solution will quickly turn purple-red and then gradually fade to orange-yellow. When the sample to be tested is sodium chloride, the solution will not change color.

[0009] This invention provides a rapid detection reagent for distinguishing between nitrite and sodium chloride, which can conveniently and quickly identify nitrite and sodium chloride and prevent nitrite poisoning incidents. Detailed Implementation Plan

[0010] The technical solution of this patent will be further described in detail below with reference to specific embodiments. The experimental methods in the following embodiments are all the same: take no less than 0.05g of the sample to be tested, add it directly to the detection reagent for rapid identification of nitrite and sodium chloride, shake well, and then observe the color change of the solution. The inorganic acid can be hydrochloric acid, nitric acid, sulfuric acid, or phosphoric acid.

[0011] Example 1

[0012] The formulation of the detection reagent for rapid differentiation of nitrite and sodium chloride in this invention is as follows:

[0013] Mix 15 parts of inorganic acid, 0.06 parts of naphthylethylenediamine hydrochloride, and 84 parts of water, and shake well to obtain the rapid detection reagent for distinguishing between nitrite and sodium chloride of the present invention.

[0014] Example 2

[0015] The formulation of the detection reagent for rapid differentiation of nitrite and sodium chloride in this invention is as follows:

[0016] Mix 18 parts of inorganic acid, 0.04 parts of naphthylethylenediamine hydrochloride, and 81 parts of water, and shake well to obtain the rapid detection reagent for distinguishing between nitrite and sodium chloride of the present invention.

[0017] Example 3

[0018] The formulation of the detection reagent for rapid differentiation of nitrite and sodium chloride in this invention is as follows:

[0019] Mix 13 parts of inorganic acid, 0.08 parts of naphthylethylenediamine hydrochloride, and 87 parts of water, and shake well to obtain the rapid detection reagent for distinguishing between nitrite and sodium chloride of the present invention.

[0020] Example 4

[0021] The formulation of the detection reagent for rapid differentiation of nitrite and sodium chloride in this invention is as follows:

[0022] 14 parts of inorganic acid, 0.08 parts of naphthylethylenediamine hydrochloride, and 86 parts of water are mixed and shaken to obtain the rapid detection reagent for distinguishing nitrite and sodium chloride of the present invention.

[0023] Example 5

[0024] The formulation of the detection reagent for rapid differentiation of nitrite and sodium chloride in this invention is as follows:

[0025] 17 parts of inorganic acid, 0.06 parts of naphthylethylenediamine hydrochloride, and 83 parts of water are mixed and shaken to obtain the rapid detection reagent for distinguishing nitrite and sodium chloride of the present invention.

[0026] Example 6

[0027] The formulation of the detection reagent for rapid differentiation of nitrite and sodium chloride in this invention is as follows:

[0028] Mix 8 parts of inorganic acid, 0.07 parts of naphthylethylenediamine hydrochloride, and 92 parts of water, and shake well to obtain the rapid detection reagent for distinguishing between nitrite and sodium chloride of the present invention.

[0029] Example 7

[0030] The formulation of the detection reagent for rapid differentiation of nitrite and sodium chloride in this invention is as follows:

[0031] Mix 23 parts of inorganic acid, 0.06 parts of naphthylethylenediamine hydrochloride, and 77 parts of water to obtain the rapid detection reagent for distinguishing between nitrite and sodium chloride of the present invention.

[0032] Example 8

[0033] The formulation of the detection reagent for rapid differentiation of nitrite and sodium chloride in this invention is as follows:

[0034] Mix 15 parts of inorganic acid, 0.03 parts of naphthylethylenediamine hydrochloride, and 84 parts of water, and shake well to obtain the rapid detection reagent for distinguishing between nitrite and sodium chloride of the present invention.

[0035] Example 9

[0036] The formulation of the detection reagent for rapid differentiation of nitrite and sodium chloride in this invention is as follows:

[0037] Mix 15 parts of inorganic acid, 0.1 parts of naphthylethylenediamine hydrochloride, and 84 parts of water, and shake well to obtain the rapid detection reagent for distinguishing between nitrite and sodium chloride of the present invention.

[0038] Take at least 0.05g of the sample to be tested and add it directly to the rapid identification reagent for nitrite and sodium chloride described in Examples 1-9. Shake well and observe the color change of the solution. When the sample to be tested is nitrite, the solution quickly turns purple-red and then gradually fades to orange-yellow. When the sample to be tested is sodium chloride, the solution does not change color.

[0039] Finally, it should be noted that although the embodiments of the present invention have been disclosed above, those skilled in the art can still modify the technical solutions in these embodiments. Therefore, any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A rapid detection reagent for distinguishing between nitrite and sodium chloride, characterized in that: The detection reagent consists of the following components in parts by weight: Inorganic acid 8-23 parts, naphthylethylenediamine hydrochloride 0.03-0.1 parts, water 77-92 parts; Take at least 0.05g of the sample to be tested and add it directly to the rapid identification reagent for nitrite and sodium chloride. Shake well and observe the color change of the solution. When the sample to be tested is nitrite, the solution will quickly turn purple-red and then gradually fade to orange-yellow. When the sample to be tested is sodium chloride, the solution will not change color.

2. The detection reagent for rapid differentiation of nitrite and sodium chloride according to claim 1, characterized in that: The detection reagent consists of the following components in parts by weight: 15 parts inorganic acid, 0.06 parts naphthylethylenediamine hydrochloride, and 84 parts water.

3. The application of the detection reagent for rapid identification of nitrite and sodium chloride as described in claim 1 or 2 in the rapid identification of nitrite and sodium chloride.