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| Residual Mass Concentration Analysis of Imidazoline by Ultraviolet Spectrophotometry |
| Received:December 13, 2011 Revised:June 15, 2012 |
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| DOI： |
| KeyWord:imidazoline residual mass concentration ultraviolet spectrophotometry |
| Author | Institution |
| LIU Jian-guo |
College of Pipeline and Civil Engineering， China University of Petroleum， Qingdao ， China |
| LI Yan-tao |
Institute of Oceanology， Chinese Academy of Sciences， Qingdao ， China |
| ZHENG Feng |
Western Sichuan Gas Extraction Plant， Southwest Oil-Gas Branch of Sinopec， Deyang ， China |
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| Abstract: |
| Residual concentration curve of imidazoline was established by ultraviolet spectrophotometry. Through analysis of distilled water sample and two samples from a gas field, it was found that the absorbance is proportional to the concentration and with good linear relationship when the corrosion inhibitors are in the range of 0 ~ 100 mg/L. Ultraviolet spectrophotometry can be used for daily rapid detection of residual concentration of imidazoline in oil-gas field. |
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