Instrument：Multi-angle laser lightscatterer

Model：DAWN HELEOS II

Manufacturer：Wyatt

Application：

Biochemical properties characterization of protein, water soluble polymer and other macromolecules

Functions：

1. The function of laser light scattering and SEC/GPC: the absolute weight average molecular weight and distribution, mean square rotation radius and distribution of each component of the polymer were determined, and the molecular conformation, branching state, aggregation state and other polymer information were obtained.

2. The function of static laser light scattering alone: direct sampling testing pool, independent determination of polymer samples to obtainZimmdiagram, calculate the absolute molecular weight, mean square rotation radius, second virial coefficient; At the same time, the kinetic parameters of reaction can be measured.

Technical specifications：

1.Laser wavelength：658nm

2.Laser power：100mW

3.Detector type：Static hybrid photodiode, field effect transistor mutual impedance amplifier

4. Angle detector number：18

5.Angle range：15 – 165°

6. Molecular weight range：103-107g/mole (Daltons)

7. Molecular size range：10 -300+nm

Functionary：Guoshuang，

Office phone：022-85358293

E-mail：guoshuang@nankai.edu.cn

Communication address：Nankai UniversityJinnanCampus integrated laboratories building D320