Molecular Weight Analyser

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BI-MwA Molecular Weight Analyzer

The BI-MwA Molecular Weight Analyzer is simple to use, but incorporates sophisticated features. Inject your sample into the low-volume, 7-angle flow cell. The sample is illuminated by a temperature stabilized, precision power-controlled diode laser. The ultra-stable, high-sensitivity, low-noise CCD detector automatically collects the scattered light. Then, the software extrapolates the data to zero angle for the absolute molecular weight determination.

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Overview

Specifications

Molecular Weight Range 1 kDa to 1000MDa, depending on refractive index and concentration [High end for dendrimers and other compact structures.]
Cell/Optics
Angles 7, nominally 35, 50, 75, 90, 105, 130, and 145 degrees.
Fiber Low numerical aperture, integral to cell.
Maximum Pressure 3.5 MPa (500 psi) maximum.
Fittings Standard HPLC Inlet/Outlet on front panel.
Volume Cell, 100 µL nominal; Scattering, 20 nL nominal.
Laser Temp. stabilized w/prec. power control, 30 mW, 635 nm, vertically polarized.
Cell PEEK std., options on request.
Electronics/Detector
Control Integrated, dedicated, powerful microcontroller. USB driven.
Detector CCD, ultra-high sensitivity and spatial uniformity.
Analog Inputs 4 standard, with 16 and 24 bit resolution, 15 additional analog channels (optional) with 24-bit resolution. Computer selectable gain adjustment. Suitable for use with most common RI, UV, viscometer, thermocouple, thermistor, injector, pressure gauge and pump outputs.
Power Requirements 100/115/220/240 VAC, 50/60 Hz,25 Watts
Dimensions Size: 195(H) x 210(W) x 380(D) mm; Weight: 5.5 kg
Certificates CE Certified

U.S. Patent # 6,052,184

A policy of continued improvement may lead to specification changes.