SPECTRUM manufacture wide ranges of scientific products including heating and control equipments, homogenizers, rotators, shakers, stirrers, vortexers, etc.


Chromatography System

Spectra/Chrom® CF1 Fraction Collector
CF-1 Fraction Collector can be operated as a simple fraction collector, where each fraction is the same size and the fraction size is set in terms of time, drops, or external events (like counts from a pump). A simple command entered from the membrane keypad enables the internal peak detector. This allows you to collect only those peaks of interest from the chromatogram and to discard the rest.

  • Collects up to 174 fractions
  • Cold-room compatible
  • Tube sizes from 10 to 28 mm diameter
  • Built-in peak separator
  • Includes drop counter
  • 10 time windows
  • Can be controlled remotely
  • CE Certified
  • Collect from 4 columns simultaneously

Spectra/Chrom® UV Monitor
The Spectra/Chrom Model 280 UV Monitor is the ideal detector for both LC and HPLC.

  • 10 Minute warm-up
  • Digital output display
  • Cold-Room Compatible
  • Includes both 254 and 280 nm filters
  • Dual flowpath for baseline compensation
  • Includes 5 mm dual flowpath flowcell
  • CE Certified
Stability Maximum drift 0.0005 AU per hour
after 30 minute warm-up
Full-Scale Absorbance Ranges 0.01, 0.02, 0.05, 0.1, 0.2, 0.5, and 1.0
Absorbance Units
Linearity Max. error 1.5% of full scale at 254 nm
Noise Less than 0.003 AU
Operating Temperature -5 to +40°C, non-condensing
Weight 2 lb (1 kg)
Dimensions (cm) 11 x 23 x 14


CF-1 Fraction Collector

UV Monitor

Basic System

Spectra/Por® Dialysis Membranes

Spectra/Por® Biotech RC Dialysis Membranes

  • Regenerated Cellulose (RC) Dialysis Membrane Tubing
  • Ultra high purity
  • No special precleaning required
  • Precise MWCO

Spectra/Por® Biotech CE Dialysis Membranes

  • An Ultra High Purity and Precise Separation Dialysis Membrane
  • 14 precise MWCO's ranging from 100 to 1 million Daltons
  • Hydrophilic and uniform pore size dialysis membrane
  • No special chemical precleaning require

Spectra/Por® Biotech Dialysis Membranes Polyvinylidene Difluoride (PVDF)

  • High organic solvent resistance
  • Supplied wet in 0.1% sodium azide preservative

Spectra/Por® Standard (1-7) Regenerated Cellulose (RC) Dialysis Membranes

  • This series of membranes are composed of cellulose regenerated from cotton linters. Spectra/Por Regenerated Cellulose membranes carry no fixed charge and do not absorb most solutes. The standard RC dialysis membranes are used for general laboratory dialysis functions, i.e. desalting, buffer exchange, or molecular separation. Spectra/Por 1 through 6 also contain small amounts of impurities which are easily removed by washing. It is advised to wash the membrane in Spectra/Por Heavy Metals Cleaning Solution and/or Spectra/Por Sulfide Removal Solution when the material to be dialyzed is sensitive to these contaminants


  Spectra/Por1 Spectra/Por2 Spectra/Por3 Spectra/Por4 Spectra/Por5 Spectra/Por6 Spectra/Por7
MWCO (kD) 6-8 12-14 3.5 12-14 12-14 1, 2, 3.5, 8, 10, 15, 25, 50 1, 2, 3.5, 8, 10, 15, 25, 50
Physical properties Transparent, Flexible Transparent, Flexible Transparent, Flexible Transparent, Flexible Thick, Rigid Transparent, Flexible Transparent, Flexible
Packaging Dry Dry Dry Dry Dry Wet Wet
Preservative Glycerin Glycerin Glycerin Glycerin Glycerin 1% hydrogen peroxide 1% hydrogen peroxide
Trace Elememts Contents Heavy Metals, Sulfides Heavy Metals, Sulfides Heavy Metals, Sulfides Heavy Metals, Sulfides Heavy Metals, Sulfides Heavy Metals, Sulfides Minimal
Flat width range (mm) 10 to 120 8 to 120 18 to 54 10 to 75 65 to 140 6 to 54 6 to 54
Sample volume range (ml) 1 to 1000 1 to 1000 2 to 200 1 to 300 25 to 1200 1 to 150 1 to 150
Disc/Flat Sheet Yes Yes Yes Yes Yes No No


Che Scientific Co. (Hong Kong) Ltd.
18/F, Unit D, Roxy Industrial Centre, 58-66 Tai Lin Pai Road, Kwai Chung, Hong Kong.
TEL: +(852) 2481 1323    FAX: +(852) 2418 1302
E-mail: sales@chescientific.com     Website: http://www.chescientific.com