Peptone, beef extract powder and yeast extract powder provide nitrogen, vitamins, minerals; lactose, dextrose into fermentable sugars, which produce acid when measured by the phenol red indicator, acid yellow, basic red; thiosulfate sodium can be reduced to some bacteria to hydrogen sulfide, to produce a black iron sulfide and iron salts; sodium chloride to maintain osmotic equilibrium; agar as medium coagulant.
Formulation(per liter):
Peptone 20g
Beef extract powder 3g
Yeast extract powder 3g
Lactose 10g
Dextrose 1g
Sodium chloride 5g
Ferric ammonium citrate 0.5g
Sodium thiosulfate 0.5g
Agar 12g
Phenol red 0.05g
Final pH 7.4 ± 0.2
How to use:
1.Suspend 54.5g in 1L of distilled water , stirring heated to boiling ,autoclave at 121 for 15 minutes.
2.Diluted and treated samples.
Quality control:
Item
The name and number of strain
Growth
Colony Color
1
Escherichia coli ATCC25922
Good
A/A
2
Proteus CMCC (B) 49027
Good
K/A
3
Salmonella typhimurium CMCC (B) 50115
Good
K/A
“A”Acid , “K” Alkality
Storage: Keep container tightly closed, store in a cool, dry place, away from bright light. Storage period of 3 years.
>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.
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.
Dryingchamber
· 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)
Coldtrapandcondensingcoil
· 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.
Sampleshelves
· 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
ItemNo
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
Document
Freezer Dryer, 3kgs-6kgs water capturer
Model:
ST7003,ST7006,ST9006
