Proposal of a flow scheme for the chemical-form-based quantitative analysis of chlorine compounds in pulp for sanitary products and verification of safety
| Autor: | Mitsuhiro Wada, Satoko Ishii, Shigeo Imai, Takeharu Wada, Yasushi Minobe, Kei Iwasaki |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
Inorganic chemistry Chloroacetic acid chemistry.chemical_element Dichloroacetic acid 010501 environmental sciences engineering.material Toxicology 01 natural sciences Chloride chemistry.chemical_compound Chloroacetic acids polycyclic compounds medicine Chlorine 0105 earth and related environmental sciences Chlorine dioxide Pulp (paper) Water Oxides General Medicine chemistry engineering Gas chromatography–mass spectrometry Chlorine Compounds 010606 plant biology & botany medicine.drug |
| Zdroj: | Regulatory Toxicology and Pharmacology. 91:109-116 |
| ISSN: | 0273-2300 |
| DOI: | 10.1016/j.yrtph.2017.10.009 |
| Popis: | To determine the amounts and chemical forms of chlorine compounds in elemental chlorine-free (ECF) bleached pulp for sanitary products, a chemical-form-based quantitative analysis flow scheme was created. The scheme involves quantitative determination of compounds eluted in elution tests assuming dermal exposure. The results indicated that most of the chlorine compounds in pulp used for sanitary products were insoluble organically bound chlorine and water-soluble chlorides consisting of chloride ions. The total amount of chlorine obtained by analysis of the total chlorine in the pulp products was close to the sum of the amounts of water-soluble chlorides, residual chlorine, chloroacetic acids, and insoluble organically bound chlorine. Therefore, the balance of chlorine measured by the flow scheme was acceptable. Little residual chlorine was detected in the pulp products, suggesting that the chlorine dioxide used for bleaching was almost completely converted into inactive inorganic chlorides and organic chlorine compounds and that these substances do not affect the health risk posed by pulp products. A risk assessment of the detected chloroacetic acid and dichloroacetic acid revealed that there is no concern about the health risk posed by use of these products. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect