PEG3-bis(Amino-Tri-(Propargyl-PEG2-ethoxymethyl)-methane) is a crosslinker consisting of six propargyl groups. The propargyl groups can form triazole linkage with azide-bearing compounds or biomolecules via copper catalyzed Click Chemistry. The hydrophilic PEG spacer increases solubility in aqueous media. Reagent grade, for research purpose.
PEG3-bis(Amino-Tri-(Propargyl-PEG2-ethoxymethyl)-methane) is a crosslinker consisting of six propargyl groups. The propargyl groups can form triazole linkage with azide-bearing compounds or biomolecules via copper catalyzed Click Chemistry. The hydrophilic PEG spacer increases solubility in aqueous media. Reagent grade, for research purpose.
Usages:
For antimicrobial susceptibility testing.
Principle:
Beef extract powder and acid hydrolyzed casein protein provides nitrogen, vitamins and amino acids; soluble starch absorption of toxic metabolites; agar as medium coagulant.
Formulation(per liter):
Agar 17g
Beef extract 2g
Soluble starch 1.5g
Acid hydrolysis of casein 17.5g
Final pH7.3 ± 0.2
How to use:
1.Suspend 38g in 1 L of distilled water , stirring heated to boiling until completely dissolved, dispensing flask, 121 autoclave for 15min.
2.Diluted and treated samples.
Storage: Keep container tightly closed, store in a cool, dry place, away from bright light. Storage period of 3 years.
500g
Control System:
5.4”LCD Touch Screen Display
>The display can simultaneously display:all main parameters such as cold trap temperature,vacuum degree,sample temperature, and shelf temperature.
>Schematic diagram of equipment operating components,through graphic display to view the working status of each component of the equipment.
>Ithas the functions of cold trap precooling and vacuum pump preheating,and the time can be set by the userin the system. >Display whether the current running status is normal or not by numerical color.
>Built-in saturated vapor pressure &temperature corresponding relationship table,dearly displaying the corresponding relationship.
o One-key operation,the operation is extremely simple,no special professional learning and training is required.
o Thermal electromagnetic over-current and short-circuit protection,making the equipment run more safely and stably.
o Active reminder of equipment maintenance time and vacuum pump replacement lubricating oil time.
o Ambient temperature monitoring,the device automatically reminds the alarm if the ambient temperature is too high.
o Optional eutectic point detection device and endpointjudgment detection system make freeze-drying more scientific.
Drying chamber | · The separate drying chamber reduces the probability of damage caused byimproper handling of the drying chamber due to height and weight.The upper cover is anodized aluminum with anti-corrosion treatment.●Highly transparent plexiglass drying chamber,good light and heat radiation conduction.Reserve 6/12 external valve ports.· 316L stainless steel all black Teflon coating drying chamber,suitable for drying organic solvents and various corrosive samples,reserved for 6/12 external ports.· 316L stainless steel vertical multi-port multi-manifold external rack(The standard configuration is aplexiglass drying chamber,and one ofthe diying chambers can be optional) |
Cold trap andcondensing coil | · The cold trap cavity and condensation coil are made of 316L stainless steel.Large opening and channel design,the gas can be quickly captured through the condensing coil.· The cavity and condensing coil are equipped with Teflon anti corrosion coating as standard,which can trap organic solvents and various corrosive solvents.· The condensing coil is placed in the cold trap to increase the condensate catchment area,which can effectively prevent external condensation. |
Sample shelves | · 316Lstainless steel stackable sample shelves,capable oflyophilizing machine solvents and various corrosive solvents.Each shelf can be placed and taken freely without manual work.The distance and height ofeach shelfcan be adjusted freely.-All black coating,good heat absorption performance.-Special hole for freeze-drying of centrifuge tubes,which is conducive to the drying of samples in centrifugetube containers.· All-aluminum Teflon surface anti-corrosion treatment electric heating shelf. |
Refrigerationsystem | · Danffos compressorCopper plate heat exchanger,the largest area to increase heat dissipation· Unique refrigeration technology,the temperature of the cold trap can be lowered from ambient temperatureto below-80C°within 2 minutes.· Class A temperature sensor with high temperature accuracy and low error.· Multiple detection and alarm system,the refrigeration system pressure is too high or refrigeration failure cantimely alarm and take corresponding measures. |
Techinical parameter
| Item No | ST7003 | ST7006 | ST9006 | |
| Ice condenser capacity | 3kg | 6kg | 6kg | |
| Ice condenser temperature | -70℃ | -70℃ | -90℃ | |
| Cold trap volume | 5L | 10L | 10L | |
| Freeze dried chamber | Bell shape (standard configuration)/Multi manifold type/T-shaped frame type | |||
| Sample shelf | φ200mm.Single layer area 0.03m2 with 3-5 layers available | ●260mm/485mm.Single layer area 0.055m²/0.185m².3-10 layers/optional ● Electric heating/manual capping/optiona | ||
| Vacuum pump | Extreme vacuum 5*10*mbar with a pumping capacity of 8m³/h optional pump of various types | |||
| Oil mist filte | Standard configuration | |||
| Vacuum pump connection pipe | Single forming stainless steel flexible pipe DN16 ISO-KF L-1.2m | |||
| Anti-corrosive treatment | Cold trap,condensing coil/all equipped with PTFE anti-corrosion treatment as standard. Freeze-drying organic solvents. | |||
| External valve | 6pieces/optional | 1-48 pieces/optional | ||
| Eutectic point detection system | Support/Optional | |||
| Data output analysis | Support/Optional | |||
| Powe | 0.6kw | 1.1kw | 1.5kw | |
| Size | 420*545*455mm | 510*570*500mm | ||
Freezer Dryer, 3kgs-6kgs water capturer
Model:
ST7003,ST7006,ST9006
Brand:
Yingtai