Analysis of Antioxidant in Polystyrene (GPC/MS)

Antioxidant (Irganox1010) in Polystyrene was analyzed with GPC/MS using GPC KF-402HQ. Only a low molecule weight domain can be poured into a mass spectrometer (MS) by using GPC mode. Therefore, it is not necessary to pretreat.
Refer to Simultaneous Analysis of Various Additives of Polymer in Polystyrene (GPC/MS) s1172

Sample : 1ppm Irganox 1010 in 1000ppm Polystyrene, 5micro-L
1. Polystyrene
2. Irganox 1010

 (HPLC)
 Instrument : Agilent 1100
 Column : Shodex GPC KF-402HQ (4.6mmID*250mm) x 2
 Eluent : THF
 Flow rate : 0.3mL/min
 Detector : UV(210nm)
 Column temp. : 40°C

 (MS)
 Instrument : Thermo Quest LCQ Advantage
 Ionization : APCI
 Capillary temp. : 180°C
 Vaporizer temp. : 450°C
 Source voltage : 6000V
 Sheath gas flow : 80L/min