The testo 557 digital manifold fulfils numerous functions, which are required for working on refrigeration systems and heat pumps, in just one instrument: for example superheating/subcooling calculation, vacuum measurement, temperature-compensated leakage test. You can also use a practical app to monitor the manifold via your smartphone/tablet and store the measurement results or send them by e-mail.
EX1600 analysis system, a good helper of your laboratory analysis, is a high performance liquid detection system, suitable for most of sample testing from simplicity to complexity, and unit components can be changed according to users' demands.
The high-performance reciprocating parallel pump provides precise flow to achieve excellent reproducibility of samples.
Repeated sample injection can achieve 0.0001-precision qualitative and quantitative repeatability index.
*EXFORMMA ARCUS series of chromatographic columns are used under the specified laboratory conditions
The flow cell with unique design of double parallel conical bores, in combination with imported high-performance deuterium lamp, enables the baseline to be more stable with the best sensitivity.
EX1600 system provides not only the most commonly used UV detector, but also different detectors based on each sample’s characteristics, and provides the appropriate applied analysis conditions, e.g. Refractive Index Detector suitable for sugar and superpolymer analysis, Evaporative Light Scattering Detector for analysis of non-volatile organic compounds, and Fluorescence Detector for analysis of organic compounds with fluorescent substance or with derived fluorescent substance.
EX1600HP High Pressure Gradient System
EX1600LP Low Pressure Gradient System
2 kinds of liquid
2 to 4 kinds of liquid
Gradient proportion of double-pump control with different flow velocity
Gradient proportion of the switching time control of proportional valve
In HPLC analysis, especially in gradient elution, some unexpected peaks, which are usually called Ghost Peaks, may appear in a chromatogram. There are several reasons for the appearance of ghost peaks, including residual in injector, water impurities and unknown components in sample. But in general, they are caused by impurities from the mobile phase.
The dTrite Digital Burette provides accurate, precise and convenient bottle-top titration, as well as optimum operator safety. It combines both magnetic stirrer and titrator functions, making it easier for the operator to achieve satisfactory results in the field of analytical chemistry, food industry, water analysis etc.
The testo 549 digital manifold offers many advantages in comparison with analog manifolds: the instrument will make it easier for you to work on refrigeration systems and heat pumps. With its integrated temperature measurement and automatic calculation of superheating/subcooling, you can now do away with additional measurements and manual comparisons (when using an optional clamp probe). You can also use the manifold for 60 current refrigerants.
Centrifugal sifter is feeding the materials into a screw conveyor and a rotor rotating at high speed. The fine materials will pass through screen, and the oversize materials will be discarded at the end of the screw shaft. It is especially suitable for grinding plant powder, such as: Chinese herbal medicine powder, curry powder, ginger powder, garlic powder, chili powder, pepper powder material, cosmetics, nano tio2 , mica powder, pearl pigment superfine powder and so on.
• A space saving unit with 16 stirring positions and 4 independent speed control channels
• A wide range of speed from 0 to 1100rpm
• High magnetic adhesion prevents stirrer spin bar out of control
• Stainless steel work plate, covered with silicone cushion, provides excellent performance of skid resistance
pipettes have been quality tested according to ISO8655-2:2002 with calibration certificate. The quality control involves gravimetric testing of each pipette with distilled water at 22℃.
The MicroPette plus pipettes can be fully autoclaved and withstood steam sterilizes at 121℃, 1 atm for 20 minutes. The pipettes can be autoclaved without special preparations. After autoclaving the pipette must be cooled down and left to dry over 12 hours.
It is recommended to check the performance of the pipette after each autoclaving. It is also recommended to grease the piston and seal of the pipette after each 10 autoclaving.