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| A New Sample Pretreatment Method of Infrared Spectrum Analysis for Barium Sulfate Identification in Paper |
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| DOI：10.11980/j.issn.11-1967/TS.2015.04.008 |
| Key Words:paper barium sulfate pickling infrared spectrum |
| Fund Project:本课题为国家教育部博士点基金项目(20110172110026)资助项目。 |
| Author Name | Affiliation | | LI Ling-ling1 | State Key Lab of Pulp and Paper Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640
| | CHAI Xin-sheng1,2,* | State Key Lab of Pulp and Paper Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640
National Paper Products Quality Supervision Inspection Center, Dongguan, Guangdong Province, 523080) | | TIAN Ying-xin1 | State Key Lab of Pulp and Paper Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640
| | CHEN Run-quan2 | National Paper Products Quality Supervision Inspection Center, Dongguan, Guangdong Province, 523080 |
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| Abstract:This paper discussed the effect of the interference caused by the organic matrix, calcium carbonate and kaolin on the standard method (GB/T 2679.12—1993) for identification of Barium Sulfate in paper by infrared spectrum, and proposed a new method based on novel sample pretreatment together with infrared spectrum analysis. On the basis of the national standard method, the sample was calcined to be ash, and then the ash was leached with 1 mol/L hydrochloric acid to eliminate the interference of organic material and calcium carbonate. The results showed that the proposed method could efficiently overcome the shortcomings of the national standard method, and improve the detection sensitivity of infrared analysis is suitable for qualitative determination of trace barium sulfate content in paper. |
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