Spectrum

Normalized and baseline-corrected MIR absorbance spectrum of Renazzo matrix grain (fragment #5) under vacuum at 300°C

Title
Normalized and baseline-corrected MIR absorbance spectrum of Renazzo matrix grain (fragment #5) under vacuum at 300°C
DOI
10.26302/SSHADE/EXPERIMENT_LB_20170731_005
Data reference
Bonal, Lydie (2011): Mid-IR absorbance spectra of Renazzo matrix grains under vacuum at different temperatures. SSHADE/GhoSST (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_LB_20170731_005
Publications
Database
Experimentalists
Experiment type
laboratory measurement
Type
normalized absorbance
Reference position
1000.0 $cm^{-1}$
Instrument
Brucker Vertex 70 + Hyperion 3000 – micro-transmission Mid-IR
Sample holder
The diamond windows were loaded into a cell, enabling temperature 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 - 4000.0 1.9287 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 µm²
Name
RENAZZO matrix grains (CR Chondrite) heated at 300°C
Comments
matrix composed of minerals (hydrated and not hydrated) and organics
Experiment
Mid-IR absorbance spectra of Renazzo matrix grains under vacuum at different temperatures
Parent spectrum
Date begin
2011-07-20
Release date
2018-01-31 23:51:01 UTC+0000
Version (Date)
#1 (2018-01-31 23:51:01 UTC+0000, Updated: 2020-03-18 06:29:05 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 data. The resulting spectrum is normalized to the intensity of the 10 µm silicate Si–O stretching band (1000 cm-1)
Quality flag
4
Validator(s)