Rapid detection kit and detection method of nickel in garment metal accessories and imitation ornaments

Abstract

The invention discloses a rapid detection kit of nickel in garment metal accessories and imitation ornaments, comprising 1) 0.5 mL of an immersing solution A consisting of an HCl solution having a concentration of 6 mol / L; and 2) 0.1 mL of a developer solution B consisting of a dimethyl glyoxime ammonia solution having a concentration of 10 g / L, an ammonium persulfate solution having a concentration of 40 g / L, and a sodium potassium tartrate tetrahydrate solution having a concentration of 300 g / L, wherein the volume ratio of the three solutions is 3:1:1. According to the invention, the advantages of simple operation, rapidness, low cost and the like are achieved; a chromogenic qualitative determination can be directly realized, and coexistent ions interfering the chromogenic determination, such as Fe, Cu, Co and the like, can be completely sheltered; any device is not needed, and the detection cost is greatly reduced.

Description

technical field [0001] The invention relates to a rapid screening and detection method for allergic metal nickel in clothing metal accessories and simulated ornaments, and belongs to the field of analytical chemistry. Background technique [0002] Nickel is the most common sensitizing metal, and the presence of nickel in certain items that have direct and prolonged contact with the human body may cause skin allergies in humans and may lead to allergic reactions. In view of this, the European Union issued Directive 94 / 27 / EC in 1994, and in September 2004 issued Directive 2004 / 96 / EC to supplement it. For products that penetrate the skin, the amount of nickel released should not exceed 0.2ug / cm 2 / week, for products that are in direct contact with the skin for a long time, the nickel release amount shall not exceed 0.5ug / cm 2 / week. In 2008, according to the new EU Nickel Directive, China revised the regulations on nickel-containing jewelry in my country's mandatory nationa...

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Problems solved by technology

[0004] In view of the rapid increase of detection samples and the expensive use of large-scale precision instruments, the detection period is too long, and the detection cost is too high, the purpose of the present invention is to provide a rapid detection kit for metal nickel in clothing metal accessories and simulated ornaments and Its detection method

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