Detection method capable of quantitatively screening substance of very high concern in rubber and plastic products using microwave digestion-ICP-AES method

Abstract

The present invention relates to a detection method capable of quantitatively screening substance of very high concern, and especially relates to a detection method capable of quantitatively screening cobalt, arsenic, chrome, tin and lead substance of very high concern in rubber and plastic products using a microwave digestion-inductively coupled plasma-atomic emission spectroscopy (ICP-AES) method. The detection method is capable of quantitatively screening the substance of very high concern in the rubber and plastic products using the microwave-digestion-ICP-AES method. The nitric acid together with hydrogen peroxide and fluoboric acid is used as a digestion system, standard solution series are prepared using a basal body match way, the serious inhibition interference of the nitric acid and the fluoboric acid on the detection of the cobalt, arsenic, chrome, tin and lead using the inductively coupled plasma-atomic emission spectroscopy (ICP-AES) method is eliminated and the quantitatively screening method is used to high effectively, conveniently and quickly screen the cobalt, arsenic, chrome, tin and lead substance of very high concern in the rubber and plastic products.

Description

technical field [0001] The invention relates to a detection method for quantitative screening of substances of high concern in rubber and plastic products, in particular to a method for quantitative screening of cobalt, arsenic, chromium, Detection method for tin and lead substances of very high concern. Background technique [0002] The (EC) 1907 / 2006 regulation of the European Parliament and the Council on "Registration, Evaluation, Authorization and Restriction of Chemicals", the EU REACH regulation, was implemented on June 1, 2007. This regulation stipulates that chemicals entering the EU should be of high concern For substances (SVHC) whose "mass percentage concentration" exceeds 0.1%, and the total tonnage of "substances of very high concern" is greater than 1 ton per year, their manufacturers or suppliers must notify the European Chemicals Agency (ECHA). Substances of very high concern refer to substances that have carcinogenicity, teratogenicity, reproductive toxici...

AI Technical Summary

Problems solved by technology

This will inevitably lead to a new wave of detection of substances of high concern, which will increase the export cost of Chinese enterprises

[0003] At present, there are no substances of high concern in rubber and plastic products at home and abroad, such as cobalt dichloride, lead hydrogen arsenate, diarsenic trioxide, diarsenic pentoxide, triethyl arsenate, bis-tributyl tin oxide, sodium dichromate, chromium Lead acid, molybdenum chrome red, chrome orange, sodium chromate, potassium chromate, ammonium dichromate, potassium dichromate, cobalt sulfate, cobalt nitrate, cobalt carbonate, cobalt acetate, chromium trichloride, chromic acid, dichromium acid, strontium chromate, chromium chromate, potassium zinc chromate hydroxide, zinc yellow, arsenic acid, calcium arsenate, lead arsenate, lead azide, lead 2,4,6-trinitroquinone and There is no detection method for substances such as lead picrate, and there is no quantitative screening method for cobalt, arsenic, chromium, tin and lead substances of high concern in rubber and plastic products, and there is no method for quantitative screening of rubber and plastic by using microwave digestion-ICP-AES method Literature reports on detection methods of cobalt, arsenic, chromium, tin and lead substances of very high concern in products

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