ENFSI FIDE-WG
Definition
The European Network of Forensic Science Institutes Forensic Document Examination Working Group, which publishes best-practice manuals for document examination methods including ink analysis across EU member-state laboratories.
Related terms
- ATR-FTIR (Attenuated Total Reflectance FTIR)
- An FTIR sampling mode in which infrared light undergoes total internal reflection in a crystal pressed against the sample surface, probing only...
- D Band and G Band (Raman)
- The characteristic Raman bands of graphitic carbon materials at approximately 1350 cm-1 (D, disorder) and 1590 cm-1 (G, graphitic C-C stretch); diagnostic...
- ESI-MS (Electrospray Ionisation Mass Spectrometry)
- An ionisation technique for LC-MS coupling that gently ionises analytes from solution at atmospheric pressure; produces molecular ion clusters and charge-state distributions...
- Photodiode-Array (PDA) Detector
- An HPLC detector that records a full UV-Vis absorption spectrum at every elution time point, producing a 3D data matrix (time, wavelength,...
- Reversed-Phase HPLC
- HPLC using a non-polar C18 stationary phase and a polar aqueous-organic mobile phase; components elute in order of increasing hydrophobicity; the standard...
- Rf Value (Retardation Factor)
- In TLC, the ratio of the distance migrated by a component to the distance migrated by the solvent front; a characteristic value...
- Solvent-Loss Dating
- An ink dating approach based on measuring the concentration of residual semi-volatile solvents (particularly phenoxyethanol in ballpoint ink) relative to a non-volatile...
- SWGMAT Guidelines
- Guidelines issued by the Scientific Working Group for Materials Analysis (US), which define best practices for forensic ink analysis including method validation,...
- Video Spectral Comparator (VSC)
- A multispectral imaging instrument combining UV, visible, and near-infrared illumination with selectable emission filters and a calibrated digital camera; the primary bench...
Explained in
- Ink Analysis Methods: TLC, HPLC, Raman, FTIR and Mass SpectrometryThe European Network of Forensic Science Institutes Forensic Document Examination Working Group, which publishes best-practice manuals for document examination...