QIAamp DNA Micro Kit

The resulting purified DNA is free of proteins, nucleases, and other impurities, and is suitable for use in sensitive downstream applications, such as real-time PCR (see figure "Efficient purification of DNA from small sample sizes") and laser microdissection (LMD) PCR (see figure "Laser microdissection PCR"). DNA purified with the QIAamp DNA Micro Kit may also be used in short-tandem repeat (STR) genotyping, single-nucleotide pylomorphism (SNP) genotyping, or pharmacogenomic research.

The QIAamp DNA Micro Kit combines the selective binding properties of a silica-based membrane with flexible elution volumes of between 20 and 100 µl. DNA binds specifically to the QIAamp MinElute silica-gel membrane while contaminants pass through. No phenol–chloroform extraction is required. PCR inhibitors, such as divalent cations and proteins, are completely removed in two efficient wash steps, leaving pure DNA to be eluted in either water or a buffer provided with the kit. QIAamp DNA Micro technology yields genomic and mitochondrial DNA from small samples ready to use in PCR and blotting procedures.

QIAamp sample preparation technology is fully licensed, allowing QIAamp purified nucleic acids to be used in any molecular assay or other downstream application without risk of patent infringement.

The QIAamp DNA Micro Kit simplifies isolation of DNA from small samples with a fast spin-column procedure (see flowchart "Procedure"). The QIAamp DNA Micro Kit uses well-established technology for purification of genomic and mitochondrial DNA from small sample volumes or sizes (e.g., 1–100 µl whole blood, blood cards of ~3 mm diameter, urine, or <10 mg tissue or laser microdissected tissue). Fresh or frozen blood, tissue, and dried blood spots can be purified in 30 minutes and eluted in 20–100 µl.

The QIAamp DNA Micro Kit procedure is suitable for a wide range of sample materials, including:

• Small volumes of blood
• Blood cards
• Urine
• Small tissue samples, including laster microdissections