( thgewili li32451KF-4KF-4003HQKF-401HQKHQ02HQ)lill24688050505 rauceoM () 2.5F-4enerytsyoPCoumns: 6789 Organc SECGPCHghPerformance AnayssNot detectedColumn Eluent Flow rate Detector Column temp. : 40 ˚C: Shodex GPC KF-400HQ series : THF: 0.3 mL/min: RI (small cell volume)(Standard type)(High performance type)Generally, pretreatment is required for additives analysis in polymers. By using a size exclusion chromatography column, it separates the additives from polymers, and only the low molecular weight region containing the additive is introduced into a mass spectrometer (MS). Therefore, sample pretreatment is not required, and thus a simple and rapid detection can be expected.UV (210 nm)1071061051041031021.01.52.0Elution volume (mL)KF-802.5 x 250 µL injectionKF-402.5HQ x 210 µL injection2.53.03.510151015minColumn Eluent Flow rate Detector Column temp. : 40 ˚CInto MSAPCI-MS1176(-): Shodex GPC KF-401HQ : Chloroform: 0.3 mL/min : RI (small cell volume) 21 mL5.7 mLIRGANOX 1010 Sample : Liquid paraf■n 1 %, 5 µLSample : EPON1001 0.2 %2025 min10Sample : 10 µL0.1 %1. Dioctyl phthalate 0.1 %2. Dibutyl phthalate 3. Dipropyl phthalate 0.1 %4. Diethyl phthalate 0.1 %5. Dimethyl phthalate 0.1 %0.2 %6. Propylbenzene 0.2 %7. Ethylbenzene 0.2 %8. Toluene 9. Benzene 0.2 %10 minSample : 5 µLCup of instant noodles (styrene foam) 1000 mg/L 15minColumn Eluent Flow rate Detector Column temp. : 40 ˚C: Shodex GPC KF-401HQ x 2: THF: 0.3 mL/min: UV (254 nm) (small cell volume) Having 1.5 times more theoretical plate number than standard column, KF-402.5HQ provides improved resolution especially for the separation of small to medium molecular weight substances. high performance type columns use less than one third of solvent per analysis compared to standard type columns do.Column Eluent Flow rate Detector Column temp. : 40 ˚C: Shodex GPC KF-802.5 x 2 Shodex GPC KF-402.5HQ x 2: THF: 1.0 mL/min (KF-802.5) 0.3 mL/min (KF-402.5HQ) : RI (conventional type) (KF-802.5) RI (small cell volume) (KF-402.5HQ) Column Eluent Flow rate Detector Column temp. : 40 ˚C121620 min: Shodex GPC KF-402HQ x 2: THF: 0.3 mL/min: UV (210 nm), APCI-MS (SIM)Calibration curves for KF-400HQ series using polystyreneLC/MS analysis of antioxidant (IRGANOX 1010) in a cup of instant noodles (styrene foam)Comparison of standard and high performance type columnsLiquid paraffinPhthalates53
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