As well during high pressure as during low pressure gradient forming, solvents are generated that are firstly only mixed together, but not completely stirred. During the low pressure gradient forming the pumps suck the different components in segments and forward them to the injection valve. If there is no mixing chamber between pump outlet and injector inlet, the UV detectors will have a noisy basis line and the retention times will be irregular. The lower the detection wave, the higher the noises. The resolution between two closely adjacent peaks can vary considerably as well. The mixing chamber by SunChrom with variable volumes is optimally adapted to every HPLC system, flow rate and solvent mixtures and provides an optimum mixing and homogenisation.
Construction and function
Technical Specifications and Order Information
General | |
---|---|
Material of the mixing chamber parts | V4A (DIN 1.4401) |
Volumes | Variable between 260 and 1.800 µL |
Sieves | Stainless steel; average mesh size: 3 µm |
Stirrer | Permanent magnet with Teflon coating |
Seals | Teflon |
Filling of the static part | Glass wool |
Casing | Stainless steel; Plastics; coated RAL 7035 |
Dimensions of casing (B x H (incl. mixer) x T) | 85 x 55 (120) x 120 mm |
Weight | approx. 1,3 kg |
Power supply | 230VAC / 0,05 A |
Part Number | Short Description |
250.450 | dyn./stat. mixing chamber |
250.451 | Spare parts set (4 sieves + 6 seals) |
250.452 | Motor |
250.453 | Bottom part |
250.454 | Upper part |
250.455 | Intermediate ring |
250.457 | Nuts – extra long (3) |
250.458 | Nuts – long (3) |
250.459 | Nuts – short (3) |