后处理工艺2BP料液中甲醇和乙醇的气相色谱分析
利用气相色谱技术,为后处理工艺建立了测定2BP料液中甲醇和乙醇的分析方法.对甲醇、乙醇采用FFAP毛细管柱分析时,测定结果表明：甲醇、乙醇含量在16～395 mg/L范围内,峰面积与浓度具有良好的线性关系,其相关系数r分别为0.999 1和0.999 8；分析方法的检测下限分别为2.7 mg/L和1.6 mg/L；甲醇测量的相对标准偏差sr＜7.0％（n=6）,乙醇测量的相对标准偏差Sr＜9.0％（n=6）；回收率在95％～111％之间.甲醛、甲酸、乙酸、硝酸、肼、甲基肼、甲胺和N,N-二甲基羟胺在工艺可能存在的浓度范围内,对甲醇和乙醇的定量分析无显著影响....
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| Published in | 核化学与放射化学 Vol. 35; no. 5; pp. 284 - 290 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
中核集团四○四有限公司 第三分公司,甘肃兰州,732850
2013
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| Subjects | |
| Online Access | Get full text |
| ISSN | 0253-9950 |
| DOI | 10.7538/hhx.2013.35.05.0284 |
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| Summary: | 利用气相色谱技术,为后处理工艺建立了测定2BP料液中甲醇和乙醇的分析方法.对甲醇、乙醇采用FFAP毛细管柱分析时,测定结果表明：甲醇、乙醇含量在16～395 mg/L范围内,峰面积与浓度具有良好的线性关系,其相关系数r分别为0.999 1和0.999 8；分析方法的检测下限分别为2.7 mg/L和1.6 mg/L；甲醇测量的相对标准偏差sr＜7.0％（n=6）,乙醇测量的相对标准偏差Sr＜9.0％（n=6）；回收率在95％～111％之间.甲醛、甲酸、乙酸、硝酸、肼、甲基肼、甲胺和N,N-二甲基羟胺在工艺可能存在的浓度范围内,对甲醇和乙醇的定量分析无显著影响. |
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| Bibliography: | 11-2045/TL reprocessing;gas chromatography;methanol;ethanol SUN Yuan-yuan, YANG Song-tao, MU Ling, MA Jing-de, JIANG Guo-du （ The Third Filial Company of 404 Company Limited, China National Nuclear Corporation, Lanzhou 732850, China） The analytical method for determination of methanol and ethanol in 2BP solution of the reprocessing by capillary gas chromatography was investigated in this paper.The test results show that the linearity between the peak area and concentration is excellent in the range of 16-395 mg/L with a correlation coefficient of over 0.999; the relative standard deviation of methanol （RSD） is better than 7.0％ （n=6）,the relative standard deviation of ethanol （RSD） is better than 9.0％ （n=6）; the minimum detectable limit （MDL） are 2.7 mg/L and 1.6 mg/L; the recovery rate of measurement is 95％-111％.The possible impurities which such as formaldehyde,methanoic acid,acetic acid,nitric acid,hydrazine,monomethyl hydrazine,methylamine and N,N-dimethylhydroxylamine did not affect the quantitative determin |
| ISSN: | 0253-9950 |
| DOI: | 10.7538/hhx.2013.35.05.0284 |