| 亚甲基兰分光光度法测定气态硫化氢方法研究 |
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| 引用本文： | 孙静,朱艳.亚甲基兰分光光度法测定气态硫化氢方法研究[J].环境科学与技术,2004,27(Z1):52-54. |
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| 作者姓名： | 孙静 朱艳 |
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| 作者单位： | 湖北省环境监测中心站,武汉,430072 |
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| 摘 要： | 对气态污染物H2S测定方法亚甲基兰分光光度法进行了深入细致地探索研究,得出该方法最佳实验室测定条件,包括标准溶液和吸收溶液的选择,显色剂和样品的稳定时间,SO2、NOx对测定方法的影响以及样品的吸收效率等。实验结果表明,该方法校准曲线斜率为0.148～0.151吸光度/μgH2S·11mL,标准偏差1.2×10\+-3,环境监测样品回收率为84%～89%。
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| 关 键 词： | 方法研究 硫化氢 气态污染物 |
| 文章编号： | 1003-6504(2004)增-0052-03 |
| 修稿时间： | 2004年4月6日 |
Method Study on Determination of Gaseous H2S with Methylene Blue Spectrophotometry |
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| SUN Jing,ZHU Yan.Method Study on Determination of Gaseous H2S with Methylene Blue Spectrophotometry[J].Environmental Science and Technology,2004,27(Z1):52-54. |
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| Authors: | SUN Jing ZHU Yan |
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| Abstract: | The best laboratory conditions were obtained through determination of gaseous H_2S with methylene blue spectrophotometry, including selection of standard solution and absorption solution, stability time of chromomeric agent and samples, impact of SO_2, NOx on detection and absorption efficiency. Results indicated that the calibration curve is 0.148～0.151 absorbency/ug H_2S.11mL, standard deviation 0.0012, recovery rate of sample 84～89%. |
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| Keywords: | method study H_2S gaseous pollutant |
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