N-(Boc-PEG1)-N-bis(PEG2-propargyl) is a click chemistry branched linker. The propargyl groups can react with azide-bearing molecule via copper catalyzed Click Chemistry . The Boc group can be deprotected under acidic conditions to release amine group. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Detail
N-(Boc-PEG1)-N-bis(PEG2-propargyl) is a click chemistry branched linker. The propargyl groups can react with azide-bearing molecule via copper catalyzed Click Chemistry . The Boc group can be deprotected under acidic conditions to release amine group. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Other Products
CRM003 E. coli and Coliform Chromogenic Agar
Product Info
Document
Product Info
Introduction
Usages:
For the rapid detection and of coliforms and E. coli.
Principle:
Peptone and yeast extract powder provides carbon and nitrogen sources and trace elements; sodium chloride maintains osmotic equilibrium; agar as medium coagulant; dodecyl sulfate inhibit Gram-positive bacteria; chromogenic substrate were mixed occurrence of coliforms and E. coli enzyme corresponding specific reactions, hydrolysis of the substrate, the release of the color groups, in a pale yellow plates coliforms appears orange-red colonies while E.coli appears blue-green colonies.
Formulation (per liter):
Peptone 15.0g
Yeast extract powder 3.0g
Sodium chloride: 5.0g
Sodium lauryl sulfate: 0.1g
Agar: 12.0g
Mixed chromogenic substrate: 6.77g
Final pH 7.0 ± 0.2
How to use: 1. Weigh 41.9g of the product, adding , 1.0 L of distilled or deionized water, heated to boiling stir until completely dissolved, dispensing into flask, 115 autoclaved 10minutes.
2, Take 25.0g or 25.0mL of sample with sterile procedures, added to the flask containing 225.0mL of sterile phosphate buffered saline (or saline) ,shaken thoroughly homogenized with a homogenizer or a 1:10 dilution of 1min solution, diluted 1:10 and then continue to select the appropriate serial dilutions of three, the two plates inoculated with each dilution, poured dissolved by heating and cooled to about 45 medium.
3, observe the results.
Quality control:
This product appears light yellow after pouring on plate, these strains were inoculated after 36 ± 1 18 ~ 24h culture growth in the following table.
Bacteria name bacteria NO. growth situation feature
Escherichia coli ATCC25922 good blue-green colonies
Citrobacter ATCC8090 good orange-red colonies
Salmonella typhimurium CMCC50115 good colorless colonies
Enterococcus faecalis ATCC29212 suppressed —–
Storage: Store in a dark, cool and dry place, tighten the caps immediately after use. Storage period of two years.
1. Brushless frequency motor, in great torque, free maintenance, no power pollution, quick in speed up and down.
2. 7” LCD Touch screen display which indicates the program, rotor No, speed, time, RCF and temperature.
3. CFC-free refrigerant, pre-cooling function ,double cycle cooling, cold and hot alternating easily, free environment pollution and precise in temperature control.
4. Microprocessor control , 100 programs in store, 10 kinds of acceleration and deceleration for your choice.
5. Over speed and imbalance protection.
6. Speed, RCF, time, temperature can be edited during running.
7. High quality steel centrifuge body , stainless steel chamber, built-in stainless steel explosion-proof protect sleeve, 3 tiers protection, safe and reliable.
8. Automatic door open & close, as well as anti-pinch function (Optional).
CDL7M Technical Parameter:
Max. Speed
7000rpm
Max. RCF
11650×g
Max. Capacity
6×2400ml (12*500ml blood bag)
Time Range
1~99h59min59s
RPM/RCF Convert
Yes
Noise (dB)
≤ 65
Temperature
-20 ~ 40℃
Acc/Dec
10 Kinds
Speed Accuracy
±20r/min
Temperature Accuracy
±1℃
Voltage(V/Hz)
AC 220V/380V 50HZ/60HZ
Size (W x D x Hmm)
940×890×1000mm
Net Weight(Kg)
570KG
Certificates
CE,ISO & Calibration report are available
Special rotor for blood bag separation
Order No.
Rotor No.
Max Speed (rpm)
Max Volume(ml)
Max. RCF(×g)
05202
Swing Rotor
4000
6×2x1000ml
5210
Document
CDL7M touch screen with special programs for blood bag separation, can get good performance for platelet, red cell, all parts separation of blood. 6x2x1000ml bucket suitable for blood bag separation. Also with automatical lid lock open and close function, also wind shield can open along with door open.
Model:
CDL7M
Mastitis is the single most costly disease of dairy cattle resulting in the reduction of milk yield and quality. The inflammation of the utter is mainly caused by bacteria, and Staphylococcus aureus is often considered the most common cause of contagious mastitis in dairy herds. S. aureus infection is estimated to be present in up to 90% of dairy farms and is responsible for 35% of the economic loss in the dairy industry (Lee et al., 2005). S. aureus is a facultatively anaerobic, Gram positive bacterium. The majority of S. aureus strains are catalase-positive and coagulasepositive, which forms the basis of traditional identification methodology.
Storage Conditions and Product Stability All kit components can be stored for 2 years after the date of production without showing any reduction in performance.
All kit components should be stored at -20°C upon arrival. Repeated thawing and freezing (> 2 x) of the Master Mix and Positive Control should be avoided, as this may affect the performance of the assay. If the reagents are to be used only intermittently, they should be frozen in aliquots.