GPC/SEC System 1260 Infinity II

Producer: Agilent Technologies GmbH

Abstract: The high temperature GPC/SEC System 1260 Infinity II with trifold detection – refractive index measurement, light scattering and viscosimeter – allows the molecular analysis of polymer chains. The system provides accurate information on absolute molecular weight and size of vast majority of polymers, independently of their molecular weight range or solvent. Operating temperature up to 220 °C allows testing of poorly soluble polymers, e.g. polyolefins. Each detector has an independent temperature control so that a high degree of precision and reproducibility can be easily achieved.

Materials: Thermoplastics and thermosets

Application: Analysis of the molar mass and its distribution, characterization of complex samples, non-linear/branched polymers, graft polymers and copolymers, detection of additives, investigation of degradation behaviour

Technical data
Gel permeation chromatograph	1260 Infinity II HT-GPC System
Pump	0.1-10.0 ml/min
Flow rate precisionn	≤ 0.07 % RSD
Oven
Temperature range	ambient to 220 °C
Temperature stability	< 0.05 °C/h
Column capacity	Up to six 300 × 7.8 mm
Refractive index detector (RI)
Differential diffractometer	Deflection
Cell volume	8 µl
Noise	≤ 80 µV
Drift	≤ mV/h
Wavelength	890 nm
Autosampler
Autosampler type	Carousel 40 × 2 ml Vials, two zone heating
Injection volume	Flushed fixed loop, 5–500 µl
Viscometer
Linearity	0.5 % FS
Shear rate (typical)	3000 s^-1
Sensitivity ηsp	1 × 10^-5 Pa·s
Baseline noise (for DP output)	0.25 mV
Baseline Drift (for DP output)	< 5 mV
Light scattering detector (ELSD)
Light scattering type	High temperature evaporative scattering
Light source	LED 480 nm
Detector	PMT with digital signal processing
Operating pressure	4.2-6.9 bar
Rayleigh scattering angles	15° und 90° (dual)
Eluent flow range	0.5–5.0 ml/min