Petrochemical

Qualitative Analysis of Volatile Components in Cement Retarder

1 Experiments
1.1 Instrument and apparatus
GC-MS3100 gas chromatograph-mass spectrometer
Constant temperature oven or other temperature control device
5mL pipettor
20 mL headspace vial, and its cap, septum, crimper
1 mL disposable medical syringe and 5# needle

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