• Sensitivity:
  • OBTI: 0.05 µg/mL
  • Identi-HEM®: 0.01 µg/mL (higher sensitivity)
• Specificity:
  • Identi-HEM® reacts to certain animal blood, especially from the mustelid family (e.g., martens, polecats).
• Packaging:
  • Identi-HEM® includes a sterile swab for sample collection.
  • OBTI uses an attached piece inside the cap of collection tube.
• Shelf life:
  •  OBTI: 18 months from factory dispatch
  • Identi-HEM®: 36 months from factory dispatch

Yes. Store in a dry environment at temperatures between 39°F and 86°F (4°C to 30°C).

Once collected, the sample remains stable at room temperature (4°C to 30°C), but should be ideally tested within 7 days.

Yes. You can apply BLUESTAR^® Forensic several times to a suspected blood trace and still obtain valid results with BLUESTAR® Identi-HEM^®.

No. It only gives a positive result in the presence of human hemoglobin. It does not detect synthetic or animal blood.