TD4B Technical Parameter：
| Max. Speed | 5000rpm |
| Max. RCF | 2635×g |
| Max. Capacity | 4×50ml |
| Time Range | 0~99min |
| RPM/RCF Convert | Yes |
| Noise (dB) | ≤ 55 |
| Temperature | Normal |
| Acc/Dec | 10 Kinds |
| Speed Accuracy | ±20r/min |
| Temperature Accuracy | / |
| Voltage(V/Hz) | AC 220V/110V 50HZ/60HZ |
| Size (W x D x Hmm) | 280×220×175mm |
| Net Weight(Kg) | 3.5KG |
| Certificates | CE,ISO & Calibration report are available |
Matched Rotors for TD4B
Features
1.Maintenance -free brushless motor
2.LCD display of Speed, RCF and time.
3.Adjustable speed from 300r/min to 5000r/min
4.Timer from 1s to 99min or continuous operation
5.For 6x15ml centrifuge tube &10ml/7ml/5ml/3ml blood collection tube or 4x50ml centrifuge tube
6.Lid automatically open at the end of run to revent sample warming and to reduce handling time.
7.10 Program stored in memory and editable by ender user.
8.10 Acceleration/ 10 Deceleration profiles ,with soft brake system to get the good separation effect.
9.Electric cover lock, compact design, super speed and imbalance protection.
Description
Q-PAGE™ Bis-Tris Precast Gel is a high-performance and easy to use precast polyacrylamide gel for electrophoresis in Bis-Tris buffer system (MOPS or MES). The optimized gel formula allows Q-PAGE™ Bis-Tris Precast Gel to show improved resolution, accurate results, and an extended shelf-life over conventional Laemmli Tris-HCl gels.
Q-PAGE™ Bis-Tris Precast Gels are available in gradient (4 to 12%) and fixed (8% and 12%) concentrations of polyacrylamide in 12-and 15-well formats. Two available cassette sizes, Mini (10 x 8.3 cm) and Midi (10 x 10 cm), are compatible with most popular protein electrophoresis systems. Q-PAGE™ Mini (QP2XXX) Gels are suitable for Bio-Rad® and other systems. Q-PAGE™ Midi (QP3XXX) Gels are suitable for Invitrogen® XCell SureLock® Mini-Cell, Invitrogen® Mini Gel Tank, Hoefer SE260, and other systems.
Key Features
Storage and stability
Store Q-PAGE™ Precast Gels at 4°C for periods up to 12 months.
Do not freeze Q-PAGE™ Precast Gels. Remove tape and comb before electrophoresis.
Keep Q-PAGE™ Precast Gels flat during storage.
Q-PAGE™ Bis-Tris Precast Gel is a high-performance and easy to use precast polyacrylamide gel for electrophoresis in Bis-Tris buffer system (MOPS or MES). The optimized gel formula allows Q-PAGE™ Bis-Tris Precast Gel to show improved resolution, accurate results, and an extended shelf-life over conventional Laemmli Tris-HCl gels.
Q-PAGE™ Bis-Tris Precast Gels are available in gradient (4 to 12%) and fixed (8% and 12%) concentrations of polyacrylamide in 12-and 15-well formats. Two available cassette sizes, Mini (10 x 8.3 cm) and Midi (10 x 10 cm), are compatible with most popular protein electrophoresis systems. Q-PAGE™ Mini (QP2XXX) Gels are suitable for Bio-Rad® and other systems. Q-PAGE™ Midi (QP3XXX) Gels are suitable for Invitrogen® XCell SureLock® Mini-Cell, Invitrogen® Mini Gel Tank, Hoefer SE260, and other systems.
Used for the selective isolation and culture of Listeria monocytogenes.
Columbia Blood Agar Base provide carbon and nitrogen sources, vitamins and growth factors，maintains balanced osmotic pressure; Listeria hydrolyzes aesculin and reacts with iron ions to form black 6,7-dihydroxycoumarin; lithium chloride and other antibiotics can inhibit Gram-negative bacteria and most Gram-positive bacteria; agar is the coagulant of the culture medium.
| Ingredients | /liter |
| Columbia blood agar base | 39.0 g |
| Aesculin | 1.0 g |
| Ferric ammonium citrate | 0.5 g |
| Lithium chloride | 15.0 g |
| pH7.0±0.2 at 25°C | |
Weigh 55.5 g of this product, add 1000 mL of distilled water or deionized water, stir, heat and boil until completely dissolved, divide into Erlenmeyer bottles, sterilize at 121℃ for 15 min. Cool to about 50℃, add 1 bottle of SR0500 supporting reagent A and 1 bottle of B per 100 mL, mix well and set aside.
The following quality control strains were inoculated and cultured at 35-37℃ for 24h. The results are as follows:
| Quality control strains | Growth |
| Listeria monocytogenes ATCC19115 | Gray-green colonies with a black depression in the center and black surrounding |
| Enterococcus faecalis ATCC29212 | – |
| Escherichia coli ATCC25922 | – |
2-30℃，Keep container tightly closed, avoid direct sunlight.
Use before expiry date on the label.
1. When weighing the dehydrated medium, please wear masks to avoid causing respiratory system discomfort
2. Keep container tightly closed after using to prevent clumping.
Microbiological contamination was disposed by autoclaving at 121°C for 30 minutes.
Intended Use Used for the selective isolation and culture of Listeria monocytogenes. Principle and Interpretation Columbia Blood Agar Base provide carbon and nitrogen sources, vitamins and……