Sequencing of T-Superfamily Conotoxins from Conus virgo: Pyroglutamic Acid Identification and Disulfide Arrangement by MALDI Mass Spectrometry
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- 作者：Amit Kumar M ; al ; Mani Ramakrishnan Santhana Ramasamy ; Varatharajan Sabareesh ; Matthew E. Openshaw ; Kozhalmannom S. Krishnan ; Padmanabhan Balaram
- 关键词：Spectroscopic database ; Validation ; Water vapor ; Atmospheric absorption ; Line parameter ; Ground based measurement ; Solar occultation
- 刊名：Journal of the American Society for Mass Spectrometry
- 出版年：2007
- 出版时间：August 2007
- 年：2007
- 卷：18
- 期：8
- 页码：1396-1404
- 全文大小：778 K
文摘
Water vapor spectroscopy data for the 720 nm absorption band (4ν polyad) are validated in the context of atmospheric radiative transfer calculations. We validate line parameters from the HITRAN-2000 database and from the ULB-UFR-BIRA database which have been used for the 2004 release of HITRAN. For this purpose, ground-based high resolution observations of the direct solar radiation are compared with simulated spectra. Line parameters are selected for validation based on a full error characterization including instrument noise and uncertainties in the atmospheric profile data. For a subset of the line parameters validated in the present study independent high-accuracy data are available. The comparison with these independent reference data confirms the capability of our approach to improve water vapor spectroscopic data.