Safariland Whatman FTA Indicating Micro Cards, Pack of 100

Collect, Transport, Archive and Isolate Nucleic Acids - All at Room Temperature with Safariland Indicating FTA Micro Card (100 Pack). It includes a special indicating pigment that changes from pink to white when sample is applied. During processing, the pigment washes out and won't inhibit analysis or transformation. An integrated cover sheet protects the sample and allows the card to stand on its own when drying. Recommended for use with clear samples, such as buccal or culture cells.