| 对变色酸分光光度法分析采气污水中甲醇含量的改进 |
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| 引用本文： | 陈思,马云,屈撑囤,聂兵权,王新强. 对变色酸分光光度法分析采气污水中甲醇含量的改进[J]. 西安石油大学学报(自然科学版), 2011, 26(6): 70-74,10 |
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| 作者姓名： | 陈思 马云 屈撑囤 聂兵权 王新强 |
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| 作者单位： | 西安石油大学化学化工学院,陕西西安,710065 |
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| 基金项目： | 陕西省教育厅专项科研计划项目，陕西省社会发展攻关计划，榆林市科技计划项目 |
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| 摘 要： | 目前采气污水中甲醇含量的常用测定方法包括气相色谱法、变色酸分光光度法.其中变色酸分光光度法因设备简单,操作简便,在气田现场得到广泛应用.然而该法在甲醇浓度较高时,存在测定不准确、重现性差的问题.通过对变色酸分光光度法测定甲醇含量的实验条件优化,实现了高浓度甲醇废水的准确测定.结果表明:在最佳实验条件下,甲醇质量浓度在0～150 mg.L-1范围内线性关系良好(R=0.999 6),重现性好,准确度高,加标回收率为98.60%～104.30%,对现场含醇采气污水的测定结果与气相色谱法分析结果相符,完全满足高含醇采气污水的测定要求.
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| 关 键 词： | 采气污水 变色酸分光光度法 甲醇含量测定 气相色谱法 加标回收 |
Improvement of chromotropic acid spectrophotometry for determining methanol content in gas production wastewater |
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| CHEN Si,MA Yun,QU Cheng-tun,NIE Bing-quan,WANG Xin-qiang. Improvement of chromotropic acid spectrophotometry for determining methanol content in gas production wastewater[J]. Journal of Xian Shiyou University, 2011, 26(6): 70-74,10 |
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| Authors: | CHEN Si MA Yun QU Cheng-tun NIE Bing-quan WANG Xin-qiang |
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| Affiliation: | CHEN Si,MA Yun,QU Cheng-tun,NIE Bing-quan,WANG Xin-qiang(College of Chemistry & Chemical Engineering,Xi'an Shiyou University,Xi'an 710065,Shaanxi,China) |
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| Abstract: | At present,there are two main methods for determining methanol content in gas production wastewater,including gas chramatography and chromotropic acid spectrophotometry.The latter is now widely applied in the site because of simple equipment and easy operation.However,it would lead to fatal inaccuracy and poor reproducibility when the concentration of methanol is high.For solving those problems,the chromotropic acid spectrophotometry for determining methanol content is improved.The improved chromotropic aci... |
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| Keywords: | gas production wastewater chromotropic acid spectrophotometry methanol content determination gas chramatogram method addition standard recovery |
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