qPCR analysis is sensitive to certain contaminants that can inhibit or skew results. Be mindful of:

Common Interferents:

• Drywall or construction dust
• Blood or rust (iron oxide)
• Paint flakes or cellulose insulation
• Salt, soil, or clay particles
• Household cleaners, pesticides, or tobacco smoke

Tips to avoid interference:

• Avoid visibly dusty construction areas
• Don’t sample near recent repairs, leaks, or rusted materials
• Store the sample in a cool, dry place until shipped
• Communicate any known environmental factors with the lab