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ATR-FT-IR Spectra of Stone Age Adhesive Samples from the Eastern Baltic Area
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AUTHORS
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Shidong Chen
Institute of Chemistry, University of Tartu

Corresponding author:
Shidong Chen
shidong.chen@ut.ee
Institute of Chemistry, University of Tartu
Ravila 14a, Tartu, Estonia

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1. INTRODUCTORY INFORMATION
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Title of the dataset:
ATR-FT-IR Spectra of Stone Age Adhesive Samples from the Eastern Baltic Area
(Estonia, Latvia, and Lithuania)

Description:
This dataset contains ATR-FT-IR (Attenuated Total Reflectance Fourier-Transform
Infrared) spectra collected from Stone Age adhesive samples originating from
archaeological sites in the Eastern Baltic region, covering Estonia, Latvia,
and Lithuania.

File format:
All spectra are stored in the .spa format, which is the native binary file
format used by Thermo Electron OMNIC software. Files can be opened and
processed using OMNIC 9 or compatible versions.

File naming convention:
Files follow the naming convention: SITE_ID.spa
  SITE = abbreviated archaeological site name
  ID   = unique sample identifier

Contact information:
For questions regarding the data files, please contact:
Shidong Chen — shidong.chen@ut.ee
Institute of Chemistry, University of Tartu, Ravila 14a, Tartu, Estonia

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2. METHODOLOGICAL INFORMATION
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Data collection method:
ATR-FT-IR analysis was conducted on Stone Age adhesive samples using a
Thermo Scientific Nicolet 6700 FT-IR spectrometer combined with a Smart Orbit
diamond micro-ATR accessory.

Instrument specifications:
  - Spectrometer:   Thermo Scientific Nicolet 6700 FT-IR
  - ATR accessory:  Smart Orbit diamond micro-ATR
  - Detector:       DLaTGS
  - Beamsplitter:   CsI

Spectral acquisition parameters:
  - Wavenumber range:   4000–225 cm⁻¹
  - Number of scans:    128
  - Spectral resolution: 4 cm⁻¹
  - Zero filling:       None applied
  - Apodization:        Happ-Genzel

Software:
Data acquisition and spectral processing were performed using Thermo Electron
OMNIC 9 software. The same software (or a compatible version) is required to
open .spa files.

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3. DATA-SPECIFIC INFORMATION
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File format details:
  - Extension:  .spa
  - Type:       Binary spectral file (Thermo Scientific OMNIC native format)
  - Content:    Single-beam or absorbance/transmittance spectra per sample

Each .spa file contains one spectrum corresponding to one measurement of one
archaeological adhesive sample.

[Add any further notes on missing data, outliers, or quality flags if
applicable.]

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4. SHARING AND ACCESS INFORMATION
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License:
This dataset is released under the Public Domain (CC0 1.0 Universal) license.
No rights reserved. The data may be freely used, shared, and adapted without
restriction.

DOI:
[Insert dataset DOI here]

Related publications:
A manuscript based on this dataset is currently in preparation. This entry
will be updated with full citation details upon publication.

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README prepared in accordance with 4TU.ResearchData guidelines (July 2020)
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