A Cryogen-free Refrigerating Prconcentration/Thermal Desorption Instrument for On-line Determination of Volatile Organic Compounds in Ambient Air
文献类型：期刊论文
| 作者 | Peng Hong1,2; Chen Shi-Heng1,2; Li Wei-Wei1,2; Wu Da-Peng1; Guan Ya-Feng1 |
| 刊名 | chinese journal of analytical chemistry
 |
| 出版日期 | 2011-10-01 |
| 卷号 | 39期号:10页码:1482-1486 |
| 关键词 | Volatile organic compounds Sorbent trapping Thermal desorption On-line determination |
| 英文摘要 | a cryogen-free refrigerating preconcentration/thermal desorption device that used a refrigeration compressor as cold source has been developed, optimized and characterized. only -10 degrees c was needed to trap volatile organic compounds (vocs) down to c2 in ambient air. the device was applied for the on-line determination of vocs in ambient air. carbon molecular sieves tdx-01 and graphitized carbon black were used as adsorbents for enrichment of vocs at -10 degrees c. the trapped analytes were thermally desorbed, and were directly transferred into the gas chromatography for analysis without any second cryotrap or secondary condensation. experimental results showed that the relative standard deviations were -less than 5%, the correlation coefficients were more than 0. 99, and the detection limits ranged from 14 x 10(-12) - 52 x 10(-12) (v/v) for 10 volatile organic compounds being tested. compared with the traditional thermal desorption units that use liquid nitrogen or thermoelectric coolers as cold sources, device is more applicable for the rapid analysis of trace vocs in air with merits of compactness, small size and low power consumption. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, analytical |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | workplace air ; hydrocarbons ; atmosphere |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000298456000005 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/142453]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Key Lab Separat Sci Analyt Chem, Dept Instrumentat & Analyt Chem, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Peng Hong,Chen Shi-Heng,Li Wei-Wei,et al. A Cryogen-free Refrigerating Prconcentration/Thermal Desorption Instrument for On-line Determination of Volatile Organic Compounds in Ambient Air[J]. chinese journal of analytical chemistry,2011,39(10):1482-1486. |
| APA | Peng Hong,Chen Shi-Heng,Li Wei-Wei,Wu Da-Peng,&Guan Ya-Feng.(2011).A Cryogen-free Refrigerating Prconcentration/Thermal Desorption Instrument for On-line Determination of Volatile Organic Compounds in Ambient Air.chinese journal of analytical chemistry,39(10),1482-1486. |
| MLA | Peng Hong,et al."A Cryogen-free Refrigerating Prconcentration/Thermal Desorption Instrument for On-line Determination of Volatile Organic Compounds in Ambient Air".chinese journal of analytical chemistry 39.10(2011):1482-1486. |
入库方式： OAI收割
来源：大连化学物理研究所
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