louboutin replica

HighSpeed Columns for GPC & SEC

The PSS HighSpeed family of columns permits dramatic reductions in GPC analysis time, for polymers > 2000 Da without loss in resolution, accuracy or reproducibility.

 

PSS HighSpeed columns have a larger diameter and a shorter length (20mm x 50mm) than their typical analytical counterparts (8mm x 300mm), and the ability to operate at optimum flow rates of 6.25 ml/min while keeping same linear flow, equal resolution and polymer information: Mw, Mn, Mp and PDI.

 

HigSpeed columns have unparalleled ability to produce a 12 point calibration curve in less than ten minutes; (Polystyrene 374 to 2 570 000 Da shown below). Optimum column design helps expedite product screening, process control,

and rapid sample throughput.

 

These columns can substitute the analytical columns without modifications to your LC system, as long as your pump and detectors can accommodate 6.25 ml/min. At this flow rate, you will use the same amount of solvent you currently use, but your elution occurs quicker.

 

HighSpeed columns are available with different column materialsparticle sizes, and porosities, as linear and as single porosity columns.  

HighSpeed ReadyCal Calibration 04

 

Conditions

Column

PSS SDV 5µ linear M, HighSpeed column

Stationary phase

adjusted for high pore volume and resolution

Flow rate, Time consumption

6.25 ml/min, 7 minutes for THREE SAMPLES

Eluent, Eluent consumption

THF, 44 ml for THREE SAMPLES

Temperature

25 °C

Detection

GPC1100 RI

Samples

PSS Poly(styrene) ReadyCal green, red, white

Injection interval

2.1 minutes (13.5 ml, overlaid injection not used)

Injection volume

30 µL

 
HighSpeed Columns Eluents Mw Range 

GRAM10µm
CX
 10µm or 20µm
Novema
10µm

PFG  7µm, 
POLEFIN
SDV  5µm 
SDV 10µm 
SDV 20µm 
Suprema
10µm

Suprema 20µm

DMF, DMAc, NMP, DMSO
Aqueous 
Aqueous   
HFIP  

TCB 
THF, Toluene, CHCl3

THF, Toluene, CHCl3
 
 THF, Toluene, CHCl3
 Aqueous
 Aqueous

2000 to 1Million 
2000 to 5Million
2000 to 5Million
2000 to 10Million 

< 8 Million
2000 to 10Million 

2000 to 50 Million
2000 to 50 Million
2000 to >100 million
2000 to >100 million

Application example

HighSpeed Comparison2 04

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