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The Neon® Transfection System enables fast and efficient delivery of nucleic acids into all mammalian cell types, including primary, stem, and difficult-to-transfect cells. The flexible and open system allows the user to perform high-quality transfections using optimized or user-defined protocols in three simple steps with as few as 2 × 104 cells per reaction. A novel reaction chamber provides a dramatic increase in transfection efficiency and cell viability. The Neon® Transfection System is:
• Efficient—up to 90% in many cell types, including difficult-to-transfect cells, primary, and stem cells
• Flexible—easily transfect from 2 × 104 cells to 6 × 106 cells per reaction
• Simple—easy to use, with a single reagent kit for all cell types
• Versatile—open system allows electroporation parameters to be optimized freely
Haemometers are used for the determination of blood’s content of haemoglobin. The Marienfeld Superior haemometer according to Sahli is supplied as complete set consisting of:
polystyrene support with 2 coloured rods and opal glass plate
comparator tube
haemoglobin pipette 20 μl acc. to Sahli
silicone tubing of approx. 16 cm length
white mouthpiece
dropping pipette with rubber teat
stirring rod
acid vial
cleaning brush
directions for use
without CE – mark, only for sale and application outside EC
This meter can test pH,mV and temperature in water solution,it is suitable used in lab for those units from industrial and mining enterprises,university and scientific research organ etc.
There is a microprocessor chip inside the meter and the appearance of meter looks nice with easily operation.For notable features read as follows:
1)Large LCD with white background can display both pH and temperature value a the same time.
2)It has intelligent functions for automatic calibration,automatic temperature compensation,data storage/recall,memory max. and min. value etc.
3)Automatically display the percentage of slope after finishing calibration.
4)ºC and ºF can be switched freely.
5)Equipped with Model 600 electrode holder and calibration buffer solution,which is more convenient to use.
Gentian violet slightly stains the nuclei of the leucocytes. The blood specimen is diluted 1:20 in a WBC pipette with the diluting fluid and the cells are counted under low power of the microscope by using a counting chamber. The number of cells in undiluted blood is reported per cumm (µl) of whole blood.
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