VWR International 1325F Manuel d'utilisateur Page 30

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Nucleic Acid Purification
Total RNA Reagents
28
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PLG Heavy
Aqueous phase High density sample (for example, high salt content)
Organic phase
Standard mixtures of phenol, chloroform, isoamyl alcohol with a chloroform fraction of at least 60% (Phenol as the
sole organic solvent is not compatible with PLG Heavy)
PLG Light
Aqueous phase Low-density sample
Organic phase Standard mixtures of phenol, chloroform, isoamyl alcohol
Sample material PLG type recommended
Genomic DNA from mouse tails Use PLG Heavy to enhance isolation using a standard proteinase K/SDS organic extraction protocol
Plasmid DNA isolation Use PLG Heavy to enhance isolation using standard alkaline lysis/phenol extraction procedures
Total RNA isolation
Use PLG Heavy to enhance isolation from cells and tissues using a modified guanidinium isothiocyanate/acid phenol
method
Genomic DNA isolation Use PLG Light to enhance isolation using standard proteinase K/SDS procedures
DNA isolation from agarose gels Use PLG Light to enhance isolation of DNA fragments using phenol extraction procedures
Lambda Phage or M13 DNA isolation Use PLG Light to enhance isolation of bacteriophage DNA using standard purification protocols
Description Pk Cat. No.
Phase Lock Gel Light
Tube size 1,5 ml for 100 - 500 µl sample size, 200 tubes 200
713-2533
Tube size 2,0 ml for 100 - 750 µl sample size, 200 tubes 200
713-2535
Tubesize15mlfor1-6mlsamplesize,100tubes 100
713-2537
Tube size 50 ml for 5 - 20 ml sample size, 25 tubes 25
713-2539
Phase Lock Gel Heavy
Tube size 2,0 ml for 100 - 750 µl sample size, 200 tubes 200
713-2536
Tubesize15mlfor1-6mlsamplesize,100tubes 100
713-2538
Tube size 50 ml for 5 - 20 ml sample size, 25 tubes 25
713-2540
Tube size 1,5 ml for 100 - 500 µl sample size, 200 tubes 200
713-2534
Phase Lock Gel™
5PRIME
Phase Lock Gel (PLG) eliminates interphase-protein contamination during phenol extraction
and ensures faster results with improved recoveries. PLG migrates to form a tight seal
between the phases of an aqueous/organic extraction during centrifugation. The organic
phase and the interphase materials are effectively trapped in or below the barrier, thus
enabling complete and easy decanting or pipetting of the entire aqueous phase. The benefits
are increased yields of up to 30%, increased protection from exposure to hazardous
compounds, and no risk of interphase sample contamination. For convenience, PLG is
provided pre dispensed into standard centrifuge tubes of various sizes.
PLG is available in two different density formulations Heavy and Light and it can be used
in virtually any protocol that calls for extraction with phenol and/or chloroform, simply by
selecting the formulation suitable for the organic and the aqueous phases.
Yield of nucleic acids increased by up to 30% compared to conventional organic extraction
Eliminates interphase contamination of nucleic acid solution
Stable gel barrier allows easy sample decanting
Reduced contact with hazardous organic solvents
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