| 热导法测定天然胶乳中氮含量 |
| Thermal Conductivity method for determination of Nitrogen in Natural Latex |
| 投稿时间：2018-04-09 修订日期：2018-04-09 |
| DOI： |
| 中文关键词: 热导法 天然胶乳 氮含量 显著性检验 |
| 英文关键词: Thermal conductivity method Natural rubber latex Nitrogen content Significance test. |
| 基金项目:天津出入境检验检疫局化矿金属材料检测中心科技计划项目(2017HKJ05)；国家质量监督检验检疫总局科技计划项目(2016IK258) |
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| 中文摘要: |
| 运用LECO CHN 628元素分析仪(热导法)测定天然胶乳中的氮含量。通过实验数据确定了仪器工作参数,燃烧模式以及样品称样量等实验条件。在此条件下选取三组样品进行分析,测定结果与凯氏定氮法测定结果相比无显著性差异。本方法具有操作简单快速、精密度高等优点。 |
| 英文摘要: |
| The LECO CHN-628 elemental analyzer (by Thermal conductivity method) was used for determination of nitrogen in natural rubber latex. Determined the instrument operating parameters, combustion mode and sample weight by experimental data. Three sets of samples were analyzed in this condition, the results showed that there was no significant difference between conductivity detection method and the Kjeldahl. This method has the advantages of simple, fast and high precision. |
| Author Name | Affiliation | E-mail | | WANG Kun | Chemicals,Minerals Metallic Materials Inspection Center,Tianjin Entry-Exit Inspection and Quarantine Bureau | wangk3@tjciq.gov.cn | | WANG Hai-xian | Chemicals,Minerals Metallic Materials Inspection Center,Tianjin Entry-Exit Inspection and Quarantine Bureau | | | YAO Yi-rong | Chemicals,Minerals Metallic Materials Inspection Center,Tianjin Entry-Exit Inspection and Quarantine Bureau | | | HOU Ying-tao | Chemicals,Minerals Metallic Materials Inspection Center,Tianjin Entry-Exit Inspection and Quarantine Bureau | | | YAN Sha | Chemicals,Minerals Metallic Materials Inspection Center,Tianjin Entry-Exit Inspection and Quarantine Bureau | |
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