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| 5 A分子筛气相色谱法测定痕量 CFC12 |
| Determ ination of Trace Freon F-12 by 5 A M olecular Sieve Adsorption Gas Chromatography |
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| DOI： |
| 中文关键词: CFC12 5A 分子筛 气相色谱法 电子捕获检测器 气体样品 |
| 英文关键词: CFC12 5A molecularsieve Gaschromatography ECD Gassample |
| 基金项目:云南省自然科学基金资助项目 (2004E0022M) |
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| 中文摘要: |
| 采用5A分子筛气相色谱电子捕获检测器测定气体样品中的 CFC12, 介绍了填充柱的制备方法。方法线性良好, 用峰高定量略优于用峰面积, 检出限为 27 μ g/m ( 进样体积以 1 mL 计 ), 标准样品测定的RSD ≤ 6.7% , 加标回收率为92.3% ～ 103% 。 |
| 英文摘要: |
| The freon F-12 in gassample was determined by 5A molecularsieve gaschromatography with ECD. Thepacking method was described. The testsproduced the following results: a good linearity; quantity with peak heightbetterthanthatwith peak area; detectionlimits27 μ g/m 3 (byinjective volumeto1 mL); RSD ofstandard sample ≤ 6.7%; spiked recoveries92.3% ～ 103%. |
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