GB/T 29493.1-2013 Determination of harmful substances in textile dyeing and finishing auxiliaries—Part 1:Determination of polybrominated biphenyl and polybrominated diphenyl ethers—GC/MS method
Determination of harmful substances in textile dyeing and finishing auxiliaries—Part 1:Determination of polybrominated biphenyl and polybrominated diphenyl ethers—GC/MS method
This part of GB/T 29493 specifies the method for determining polybrominated biphenyl and polybrominated diphenyl ethers in textile dyeing and finishing auxiliaries with GC/MS method.
This part is applicable to the determination of polybrominated biphenyl and polybrominated diphenyl ethers in textile dyeing and finishing auxiliaries.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 8170-2008 Rules of Rounding Off for Numerical Values & Expression and Judgment of Limiting Values
3 Theory
Subject the specimen to ultrasonic extraction by taking toluene as an extracting agent, and then analyze the extract with a gas chromatography-mass spectrometer.
4 Reagents
Unless otherwise specified, only recognized analytical reagent shall be used.
4.1 Anhydrous sodium sulfate.
4.2 Toluene: chromatographically pure.
