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Presumptive Blood Tests

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Rapid screening test for the verification of human blood. Test provides a positive or negative result for human blood within 2 min. Two part test consists of a liquid filled collection vial with integrated swab and an easy-to-read test device. > More
#A-2543 Hexagon OBTI
      (6 Tests) - $41.00   
#A-2537 Hexagon OBTI
      (24 Tests) - $105.00   
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Hemastix are 3" plastic strips with a special blood reagent material at the tip. The strips detect the peroxide-like activity of hemoglobin in a substance. Simply rub the Hemastix on a moistened stain or across a swab that has a suspected dried blood sample on it. The reagent coated tip will turn a shade of green if hemoglobin is detected. Compare the color reaction to the chart on the side of the bottle to determine the level of hemoglobin in the sample. If the reaction is positive, take a photograph of the strip by the substance to document the reaction and retain the strip as evidence. Expired Hemastix® will generally still react to the presence of blood, but should only be used for training purposes. Please note that Hemastix® will not detect the difference between human and animal blood. > More
#A-AM2190 (50 Test Sticks) - Price: $36.95   
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Phenolphthalein is one of the most commonly used chemicals in the field and laboratory to indicate the presence of blood. Our pre-packaged kit contains all the reagents to conduct a presumptive blood test. This simples 4 step test is easy to use and is housed in a small plastic cup. An immediate pink color on the end of the swab indicates a presumptive positive for blood. 60 tests per kit.

INSTRUCTIONS FOR USE:
1. Apply a drop of Solution A to swab
2. Swab sample of unknown stain
3. Apply a drop of Solution B to swab
4. Apply drop of Solution C to swab
5. An immediate "flash" of pink color indicates a presumptive positive for blood > More
#A-PF040 Phenolphthalein Blood Test Kit
      (60 Tests Per Kit) - $41.95   
#A-PF-041 Parts A, B & C Refills
      500ml each (≈2,000 Tests Per Kit) - $99.00   
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The applicator packaging virtually eliminates the possibility of contamination of chemical reagents and dramatically increases shelflife. Reagents are contained within easily crushed glass ampoules. The ampoules are then sealed inside tough, flexible polyethylene dispenser tubes. Blood causes a pink stain in just a few seconds. This test is considered by many field technicians as being one of the most reliable presumptive tests for the presence of blood. The set contains six individual tests with extraction solution. > More
#A-1310 (6 Tests Applicators) - Price: $29.95   
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An intense blue/green color reaction in 3 seconds is presumptive evidence that blood is present. Leuco-malachite green has long been a favorite of field investigators because of its high sensitivity (1:300,000). Set of six tests with contact paper. > More
#A-1309 (6 Tests Applicators) - Price: $29.95   
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This kit is ideal for investigators in the field who need a comprehensive adaptable measuring kit to assist in documenting blood spatter on site. Packaged in a small, durable case for easy transportation. > More
#A-6617MC - Price: $275.00   
Serology & DNA Absorbant Sheet & Blanket Blood Collection Tubes Blood Tube Transport Vials Collection Swabs Invisible Blood Detection Pipette Presumptive Blood Tests Seminal Fluid, DNA, & Blood Collection Sterile Water Synthetic Blood