What's the pulsed-field gel electrophoresis (PFGE) conditions of the gel picture showing on your website? http://www.qiagen.com/Search/MagAttract-HMW-DNA-Kit#productdetails
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Pulse Field Gel Electrophoresis:

GEL: 1% Gel , 2g  Pulse Field Agarose from BioRad in  200ml 0,5x TBE-Buffer

Running Buffer: 2l  0,5 x TBE from BioRad

Electrophoresis conditions: 6 Volt/cm, Switchtime 1-12 sec

Electrophoresis duration: 16hours

Temperature adjusted: 8°C

Sample Volume up to 20µl or maximum amount of  800ng gDNA per lane

Ladder:  Low Range PFGE marker