Using the well-established boronate affinity chromatography method, the in2it (II) A1C test is free from hemoglobin S, D, E, and F interference. Results are available in 10 minutes using a small 10 µl sample. The test cartridges can be stored for 30 days at room temperature (59–77°F) and are stable until the expiration date printed on the box when stored at 36–46°F.