GB/T 23345-2009Textiles - Determination of dyestuffs of disperse yellow 23 and disperse orange 149 (English PDF)

1 Scope

This standard specifies the use of liquid chromatography - tandem mass spectrometry (LC-MS/MS) and high performance liquid chromatography (HPLC) Determination of textile products

The Disperse Yellow 23 and Disperse Orange 149 dye content method.

This standard applies to processed by dyeing of textile products.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent

Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research

Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.

Laboratory use specifications and test methods GB/T 6682 Analysis

Principle 3

Reflux extraction with boiling chlorobenzene sample dye concentrate rid extract the solvent, the residue was washed with methanol to volume. With polytetrafluoroethylene

After ene membrane filtration, the sample solution by liquid chromatography - tandem mass spectrometry (LC-MS/MS) measurement and validation, external standard; or high performance liquid chromatography

Spectrometer (HPLC) assay, if necessary, supplemented by thin layer chromatography (TLC) to confirm, external standard.

4 Reagents

Unless otherwise indicated, the reagents used in the analysis were of analytical grade and GB/T 6682 provisions tertiary water.