normalized MIR absorbance spectrum of pressed QUE99177 matrix grain N°4, under vacuum and heated at 300°C
- Title
- normalized MIR absorbance spectrum of pressed QUE99177 matrix grain N°4, under vacuum and heated at 300°C
- DOI
- 10.26302/SSHADE/EXPERIMENT_LB_20170731_002
- Data reference
- Bonal, Lydie (2011): MIR absorbance spectra of pressed QUE99177 matrix grains (CR Chondrite) under vacuum at different temperatures. SSHADE/GhoSST (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_LB_20170731_002
- Publications
- Database
- Experimentalists
- Experiment type
- laboratory measurement
- Type
- absorbance
- Reference position
- 1000.0 $cm^{-1}$
- Reference spectra
- Instrument
- Brucker Vertex 70 + Hyperion 3000 – micro-transmission Mid-IR
- Sample holder
- The diamond windows were loaded into a cell, enabling temperatures up to 300°C under vacuum (from $10^{-4}$ mbar down to $10^{-7}$ mbar). Optical access is permitted from both sides of the cell through KBr windows, thus enabling measurements in transmission.
- Standard medium
- vacuum
- Observation mode
- spectrum
- Spectral range type(s)
- MIR
- Valid spectral range(s)
-
Min - Max ($cm^{-1}$) Sampling ($cm^{-1}$) Resolution ($cm^{-1}$) Position accuracy ($cm^{-1}$) Absorption edge #1 600.0 - 5000.0 1.928712 4.0 0.05 - Scan number
- 400
- Observation mode
- single spot
- Spots number
- 1
- Objective type
- x15
- Pixels number
- 1 x 1
- Image size
- 40.0 x 40.0 ${\mu}m$
- Resolutions
- 3.0 ${\pm}$ 1.0 ${\mu}m$
- Comments
- the typical size of the spot on the sample was 40 x 40 $µm^2$
- Name
- QUE99177 matrix grains (CR Chondrite) heated at 300°C
- Primary constituent(s)
-
-
matrix QUE99177 heated at 300°C
Comments: matrix composed of minerals (hydrated and not hydrated) and organics
-
matrix QUE99177 heated at 300°C
- Experiment
- MIR absorbance spectra of pressed QUE99177 matrix grains (CR Chondrite) under vacuum at different temperatures
- Date begin
- 2011-06-29
- Release date
- 2018-01-31 23:51:01 UTC+0000
- Version (Date)
- #1 (2018-01-31 23:51:01 UTC+0000, Updated: 2018-10-12 17:04:49 UTC+0000)
- History
-
Date Mode Version Status Comments 2017-08-02 11:13:21 UTC+0000 first import #1 valid version 2016-09-21: new MIR spectra
- Analysis
- a linear baseline (as defined between 4000 and 3700 $cm^{-1}$) and a spline baseline were calculated and subtracted from the raw absorbance data. The resulting spectrum was normalized to the intensity of the 10 µm silicate Si–O stretching band (~1000 $cm^{-1}$)
- Quality flag
- 4
- Validator(s)