GB/T 18294.5-2010Technical identification methods for fire - Part 5: Gas chromatography-mass spectrometry analysis (English PDF)

1 Scope

This part of GB/T 18294 specifies the terms and definitions of gas chromatography-mass spectrometry (GC-MS) in fire technology identification.

Test equipment, test conditions and test methods.

This part applies to gasoline, kerosene, diesel, paint thinner and other fire scene common flammable liquid and its combustion residue identification.

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article

Pieces. For undated references, the latest edition (including all modifications) applies to this document.

GB/T 19267.7 Physical and chemical testing of microchemical evidence for criminal technology - Part 7. Gas chromatography - mass spectrometry

GB/T .20162 Fire technology identification material extraction method

3 terms and definitions

GB/T 19267.7 and GB/T .20162 and the following terms and definitions apply to this document.

4 test principle

After the laboratory pretreatment to be analyzed samples, injected into the gas chromatography-mass spectrometry instrument, after a pair of analytical samples with good

Good separation of the capillary column into the mass spectrum, the total ion chromatogram, using the total ion chromatogram and extraction of ion current chromatography

The characteristic of the flammable liquid is determined qualitatively by distinguishing the characteristic peaks.

5 test equipment