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| 1 | Air analysis by gas chromatography显示文摘 | HELMIG D | 1999 | J Chromatogr A1999，843，： | 1 |
| 2 | Isoprene biosynthesis in Bacillus subtilis via the methylerythritol phosphate pathway显示文摘 | Wagner WP Helmig D Fall R | | 0，，1： | 1 |
| 3 | Process-level con- trois on CO2 fluxes from a seasonally snow-covered subalpine meadow soil, Niwot Ridge, Colorado显示文摘 | Liptzin D Helmig D Williams M W | 2009 | Biogeochemistry2009，95，1： | 1 |
| 4 | Flux estimates and OH reaction potential of reactive biogenic volatile organic compounds (BVOCs) from a mixed northern hardwood forest显示文摘 | Ortega J Helmig D Guenther A | 2007 | Atmospheric Environment2007，41，26： | 1 |
| 5 | Nitric oxide in the boundary-layer at South Pole during the Antarctic tropospheric chemistry investigation (ANTCI) 显示文摘 | Helmig D Johnson B J Warshawsky M | 2008 | Atmos Environ2008，42，28： | 1 |
| 6 | Review air analysis by gas chromatography 显示文摘 | Helmig D | 1999 | Journal of Chromatography A1999，843，： | 1 |
| 7 | Automated in situ gas chromatographic-mass spectrometric analysis of plat level volatile organic trace gases using multistage solid adsorbent trapping显示文摘 | HELMIG D GREENBERG J P | 1994 | Journal of Chromatography1994，667，： | 1 |
| 8 | Boundary-layer dynamics and its influence on atmospheric chemistry at Summit, Greenland 显示文摘 | Cohen L Helmig D Neff W | 2007 | Atmos Environ2007，41，24： | 1 |
| 9 | Process-level controls on CO2 fluxes from a seasonally snow-covered subalpine meadow soil,Niwot Ridge,Colorado显示文摘 | Liptzin D Williams M W Helmig D | | 0，，： | 1 |
| 10 | Process-level controls on CO2 fluxes from a seasonally snow-covered subalpine meadow soil, Niwot Ridge, Colorado 显示文摘 | Liptzin D Helmig D Williams M W | 2009 | Biogeochemistry2009，95，： | 1 |
| 11 | White on green: under- snow microbial processes and trace gas fluxes through snow, Niwot Ridge, Colorado Front Range 显示文摘 | Williams M W Helmig D Blanken P | 2009 | Biogeochemistry2009，95，： | 1 |
| 12 | Relative quantification of Cytochrome P450 1B1 gene expression in peripheral leukocytes using lightcycler显示文摘 | Helmig S Hadzaad B D?hrel J Schneider J | 2009 | Cancer Genomics Proteomics2009，6，1： | 1 |
| 13 | Process-level controls on CO2 fluxes from a seasonally snow-covered subalpine meadow soil,Niwot Ridge,Colorado显示文摘 | Liptzin D Helmig D Williams M W | 2009 | Biogeochemistry2009，95，： | 1 |
| 14 | A pilot scale evaluation of removal of mercury from pharmaceutical wastewater using granular activated carbon显示文摘 | Cyr P J Suri R P Helmig E D | | 0，，19： | 1 |
| 15 | White on green:undersnow microbial processes and trace gas fluxes through snow,Niwot Ridge,Colorado Front Range显示文摘 | Williams M W Helmig D Blanken P | 2009 | Biogeochemistry2009，95，： | 1 |
| 16 | An automated system for continuous measurements of trace gas fluxes through snow: an evaluation of the gas diffusion method at a subalpine forest site, Niwot Ridge, Colorado显示文摘 | Seok B Helmig D Williams M W | 2009 | Biogeochemistry2009，95，1： | 1 |
| 17 | Elevated ozone in the boundary layer at South Pole 显示文摘 | Helmig D Johnson B Oltmans S | 2008 | Atmos Environ2008，42，12： | 1 |
| 18 | Ozone removal atmospheric volatile organic Environment, 1997, 31 ( 21 ) techniques in the sampling of trace gases 显示文摘 | Helmig D | 1997 | Atmospheric1997，，： | 1 |
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