General Chemical Tests

28-PAHs-polycyclic-aromatic-hydrocarbons-test

28 PAHs Aromatic Hydrocarbons Testing

Name: 28 PAHs Aromatic Hydrocarbons Testing
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Polycyclic aromatic hydrocarbons (PAHs for short) refer to aromatic hydrocarbons containing two or more benzene rings. They mainly have two combination methods. One is the non - fused - ring type, which includes biphenyl and polyphenyls, as well as polybenzene - substituted alkanes. The other is the fused - ring type, where two carbon atoms are shared by two benzene rings.

Service Background

The sources of PAHs are divided into natural sources and anthropogenic sources. Natural sources mainly come from the biosynthesis processes of terrestrial and aquatic plants and microorganisms. In addition, PAHs are also present in natural fires in forests and grasslands, volcanic eruptions, fossil fuels, lignin, and sediment. Anthropogenic sources are mainly formed by the incomplete combustion or pyrolysis under reducing conditions of various fossil fuels (such as coal, oil, and natural gas), wood, paper, and other hydrocarbons - containing compounds.

Due to their toxicity, genotoxicity, mutagenicity, and carcinogenicity, PAHs can cause various harms to the human body, such as damage to the respiratory system, circulatory system, and nervous system, as well as damage to the liver and kidneys. They are recognized as major organic pollutants affecting human health.

Service Items

I. Scope of Application

Materials where 28 PAHs may exist: charcoal, crude oil, wood tar, tar (natural); drugs, dyes, plastics, rubbers, pesticides (anthropogenic); lubricants, release agents, capacitor electrolytes......
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II. Applicable Objects

Manufacturers, brand owners, and exporters.

III. Testing Requirements

China: Chinese standards for polycyclic aromatic hydrocarbons testing:
GB∕T 36946 - 2018 Leather - Chemical tests - Determination of polycyclic aromatic hydrocarbons - Gas chromatography - mass spectrometry method
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