| Thermal Conductivity method for determination of Nitrogen in Natural Latex |
| Received:April 09, 2018 Revised:April 09, 2018 |
| DOI： |
| Key Words: Thermal conductivity method; Natural rubber latex; Nitrogen content; Significance test. |
| 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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| Abstract: |
| 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. |
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