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Printed circuit board

2019-03-07 00:00152

   Using oxygen bomb combustion method to detect the halogen content in printed circuit boards. In the airtight oxygen bomb combustion chamber, the samples to be measured were fully burned and absorbed by the absorbed liquid. Using CIC-D120 ion chromatograph, SH-AC-9 anion column, 1.8 mM Na2CO3+1.7 mM NaHCO3  eluent and bipolar pulse conductance method, under the recommended chromatographic conditions, the chromatogram is as follows. Ion chromatography can be used for halogen analysis in loudspeaker base, tympanic membrane, power and communication cable, connector, PCB board and other electronic products.