DBCO-PEG13-DBCO

Description 

The DM3100 ExcelBand™ 1 KB (0.25-10 kb) DNA Ladder is a ready-to-use DNA ladder, which is pre-mixed with loading dye for direct gel loading. The DNA ladder DM3100 is composed of 13 individual DNA fragments: 10k, 8k, 6k, 5k, 4k, 3k, 2.5k, 2k, 1.5k, 1k, 750, 500, and 250 bp derived from a mixture of PCR products and specifically digested plasmid DNA. This product contains two enhanced bands (3 kb and 1 kb) for easier reference. In addition, two tracking dyes, Xylene cyanol FF and Bromophenol blue which mimic the migration of 4,000 bp and 500 bp dsDNA during electrophoresis are also added for real time monitoring. 

Features

• Sharp bands
• Quick reference— enhanced bands 
• Ready-to-use— premixed with loading dye for direct loading
• Stable— room temperature storage over 6 months

Source 

Phenol extracted PCR products and dsDNA digested with specific restriction enzymes, equilibrated in 10 mM Tris-HCl (pH 8.0) and 10 mM EDTA. 

Range 

250 ~ 10,000 bp 

Concentration 

50 µg/ 500 µl 

Recommended loading volume 

5 µl/ well 

Storage

Room temperature for 6 months
4°C for 12 months 
-20°C for 36 months

The DM3100 ExcelBand™ 1 KB (0.25-10 kb) DNA Ladder is a ready-to-use DNA ladder, which is pre-mixed with loading dye for direct gel loading. The DNA ladder DM3100 is composed of 13 individual DNA fragments: 10k, 8k, 6k, 5k, 4k, 3k, 2.5k, 2k, 1.5k, 1k, 750, 500, and 250 bp derived from a mixture of PCR products and specifically digested plasmid DNA. This product contains two enhanced bands (3 kb and 1 kb) for easier reference. In addition, two tracking dyes, Xylene cyanol FF and Bromophenol blue which mimic the migration of 4,000 bp and 500 bp dsDNA during electrophoresis are also added for real time monitoring. 

Overview

• No need for staining and destaining of denaturing gels since Norgen’s loading buffer contains ethidium bromide
• Highly stable
• Nine bands from 200 bases to 4000 bases
• Convenient lyophilized format provides better product stability

The Norgen 1 kb RNA Ladder is a set of RNA transcripts derived from recombinant DNA templates. This ladder is suitable for precise sizing of a wide range of RNA molecules using native or denaturing agarose gels, and can be visualized under UV.

Contents: 
• 2 vials of lyophilized RNA ladder (25 loads each)
• 1x loading buffer: 33.3% formamide, 11.7% formaldehyde, 0.012% bromophenol blue, 0.05mM EDTA, 0.012% ethidium bromide, and 0.7x MOPS solution
• 2x loading buffer

Details

Supporting Data

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Specifications:
• Nine discrete bands, ranging from 200 to 4,000 bases
• Higher intensity band at 1,000 bases for easy reference

Contents:
• 2 vials of lyophilized RNA ladder (25 loads each)
• 1x loading buffer: 33.3% formamide, 11.7% formaldehyde, 0.012% bromophenol blue, 0.05mM EDTA, 0.012% ethidium bromide, and 0.7x MOPS solution
• 2x loading buffer

Instructions:
To reconstitute the lyophilized RNA ladder, add 250 µL of 1x loading buffer to each 25 loads vial and vortex gently.
Heat at 80°C for 10 minutes. Incubate on ice for 1 min. Load 10 µL on a 1-2% gel. For optimal results, use Norgen 2x loading buffer with each RNA sample. No need for staining and destaining of denaturing gels since Norgen’s loading buffer contains ethidium bromide.

Store at -20°C.

Documentation

Mini-7 laboratory centrifuge

Features of  Mini-7  laboratory  centrifuge

1. Mini-7 centrifuge is widely used in laboratory and hospital.

2. This model can fit in 2ml, 1.5ml, 0.5ml and 0.2ml tubes.
3. Light weight, small size and beautiful design.
4. Easily control, super speed protection.

Mini-7 Technical Data

Max speed	7000rpm
Volume	6×0.2ml
	6×0.5ml
	6×1.5ml
	6x2ml
	8x2x0.5ml
Speed accuracy	≦±1%

mini centrifuge also called palm centrifuge, we can supply mini centrifuge from 4000rpm to 12000rpm, also we have mini centrifuge with digital display.