Boro 3.3 Flash Glass Chromatography Column With Reservoir and PTFE Stopcock
Boro 3.3 Flash Glass Chromatography Column With Reservoir and PTFE Stopcock
Material: glass
Specification: this price corresponds to 15 * 150 mm, standard port Teflon piston chromatography column, can be customized according to the buyer specifications!
Chromatography column is the main body of gel chromatography, generally used glass tube or plexiglass tube. The diameter of the chromatographic column does not affect the separation degree. The sample size is large, which can increase the diameter of the column. Generally, the gel column is larger than 2 cm in diameter, but the sample should be evenly distributed on the gel column surface when adding samples. In addition, the larger the diameter, the larger the volume of eluate and the larger the dilution of sample. The separation degree depends on the column height. In order to separate the different components, the gel column bed must have a suitable height. The separation degree is related to the square root of the column height. However, because the soft gel column is too high to crush deformation and block, it generally does not exceed 1 meters. The separation column consisted of a short column, a gel column of 20-30 cm long, a column height and a diameter of 5:1 10:1, and a gel bed volume of 4-10 times the volume of the sample solution. The column height and diameter line is 20:1 - 100:1, and the common gel column has 50 x 25 cm, 10 x 25 cm. The dead volume under the filter plate of chromatographic column should be as small as possible. If the dead volume under the filter plate of branch and palm is large, the possibility of remixing between the separated components will be great. The result is that the elution peak shape will be affected, the image of tailing will appear, and the resolution will be reduced. In accurate separation, the dead volume should not exceed 1 / 1000 of the total bed volume.
For example: 1. Outer diameter 20 mm * column length 200 mm, 24 × standard port, with sand core and glass piston.
2. Outer diameter 30mm * column length 300mm, open, PTFE piston.
3. Outer diameter: 50mm * column length: 600mm, liquid storage ball: 500ml, 24 × standard port with sand core, PTFE piston.
It is mainly used for condensation and cooling. And it is also widely used in cooling, reflux, distillation of chemical process. Glass condenser has compact structure and small space. Additional, each joints are connected by flange. All these make it be assembled easily and flexibly. We have glass coil pipe condenser and glass tube condenser. In addition, we have different specifications to meet the needs of different cooling area.
Glass condenser can be used in:
Distillation equipment.
Chemical industry.
Biological industry.
Pharmaceutical industry.
Military chemical industry.
Pesticide industry.
Food chemical industry.
Salt chemical industry.
Dye industry.
1.Corrosion resistance including all organic and inorganic medium (expect hydrofluoric acid, fluoride, phosphate, high temperature strong alkali)
2. Maximum working temperature:150℃
3. Maximum temperature difference: 120℃
4. Maximum working pressure:
positive pressure( gage pressure):0.1MPa
negative pressure:The pressure difference between the shell and tube side is less than 0.1MPa
Physical properties | |
SiO2 : | 99.95% |
Density : | 2.2(g/cm3) |
Degree of hardness mosh' scale : | 6.6 |
Coefficient of expansion 25--300℃ ℃-1 ( ×10-6 ) | 0.58 |
Melting point: | 1732°C |
Working temperature : | Under 1100°C |
Max temperature can reach in a short time : | 1450°C |
Acid tolerance: | 30 times than Ceramics , 150 times than Stainless steel |
Visible light transmittance : | above 93% |
UV spectral region transmittance: | 80% |
Resistance value : | 10000 times than ordinary glass |
Annealing point: | 1180°C |
softening point: | 1630°C |
Strain point: | 1100°C |
Dimension Tolerance(mm) | |||||
Designation | OD | WT | Max. Siding | Max. Ovality | Max. Bow |
1-3mm | ±0.05 | ±0.05 | 0.05 | 0.05 | 1‰ |
3-10mm | ±0.1 | ±0.1 | 0.1 | 0.15 | 2‰ |
10-20mm | ±0.2 | ±0.1 | 0.1 | 0.2 | 2‰ |
20-30 | ±0.2 | ±0.15 | 0.15 | 0.2 | 2‰ |
30-40 | ±0.4 | ±0.15 | 0.2 | 0.2 | 2‰ |
40-50 | ±0.5 | ±0.2 | 0.25 | 0.25 | 2‰ |
50-65 | ±0.6 | ±0.2 | 0.35 | 0.25 | 2.5‰ |
65-85 | ±0.8 | ±0.3 | 0.45 | 0.3 | 2.5‰ |
85-100 | ±1 | ±0.3 | 0.5 | 0.5 | 2.5‰ |
100-150 | ±1.5 | ±0.4 | 0.5 | 0.8 | 3‰ |
150-200 | ±2 | ±0.6 | 0.6 | 1 | 4‰ |
200-300 | ±3 | ±0.8 | 0.7 | 2 | 5‰ |
Spectral Transmission at 1.0mm Thickness | ||||||||
nm | 220 | 255 | 280 | 315 | 350 | 380 | 590 | 780 |
% | 89 | 91 | 93 | 93 | 93 | 93 | 93.2 | 93.4 |
Chemical Composition, unit: PPM | ||||||||
K+Na | Ca | Fe | Al | Mg | Ti | Ba | Li | Cu |
<10 | <3 | <1.5 | <20 | <1.0 | <3.0 | <0.2 | <1.0 | <0.5 |
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