|
| Determination of volatile phenol in sediment by intelligent intergrated distillation apparatus and automatic flow injection analyzer |
| Received:March 10, 2021 Revised:April 10, 2021 |
| View Full Text View/Add Comment Download reader |
| DOI：10.3969/j.issn.2095-1035.2021.05.011 |
| KeyWord:intelligent integrated distillation apparatus; automatic flow injection analyzer; ottom mud; volatile penol |
| Author | Institution |
| liulu |
河北省地质实验测试中心 |
| zhuyongxiao |
河北省地质实验测试中心 |
| gemin |
河北省地质实验测试中心 |
| lilongfei |
河北省地质实验测试中心 |
| zhangmo |
河北省地质实验测试中心 |
| liuzenian |
河北省地质实验测试中心 |
|
| Hits: 1257 |
| Download times: 1168 |
| Abstract: |
| After volatile by alkali extraction of sediment, owing to the turbid solution, and there is interference ,if using flow injection analyzer to determine directly, easy to plug the instrument piping, then affect the subsequent determination. Therefore, the extract was distilled by adding copper sulfate in a fully automatic the intelligent integrated distiller under acidic conditions to eliminate the interference , and the volatilizatinon in the bottom sediment was determined by automatic flow injection analyzer. The addition amount of phosphoric acid and copper sulfate, shaking time, distillation power and volume were optimized, The excess phosphoric acid of 5ml, adding 5g copper sulfate, shaking time of 10min, distillation power of 50W and distillation weight of 225g were determined. The linear correlation coefficient was above 0.9999. The recoveries were in the range of 89.3%～102.7%. The detection limit was 0.03mg·kg-1. The experimental method is consistent with the traditional spectrophotometric method, which is not only automatic, but also friendly to the environment and people. |
| Close |
|
|
|