BlueBlood Series（Color Development on Blood Contact）

Blueblood Series

Product Introduction

The Blueblood Blood Tracing Reagent is designed for searching and detecting latent blood stains on various surfaces, as well as for stabilizing and enhancing blood fingerprints, blood footprints, and other blood patterns.

Upon contact with blood, the Blueblood reagent instantly changes from colorless to a distinctive blue color, which is highly visible to the naked eye. The color development is non-fading. The fixed formula ensures a clear, non-smearing background after color development, while the false-positive inhibitor provides strong specificity.

The Blueblood reagent can detect blood diluted up to 10,000 times. For higher sensitivity requirements, the Lumistar reagent is recommended.

The Blueblood reagent is available in BBT and BBE versions (each commercial box contains 2 sets of BBT and 1 set of BBE):

• BBT offers high visibility and is particularly effective for fresh whole blood and wiped blood.

• BBE has strong permeability and is particularly effective for trace amounts of latent blood and aged blood.

BBT and BBE can be used sequentially for enhanced results.

Applications

The Blueblood reagent can be used to search for unknown blood stains, as well as to reveal latent blood fingerprints, blood footprints, and aged latent blood.

Development effect: Light-colored substrates > dark non-porous substrates > dark porous substrates. For dark porous substrates, the Lumistar latent blood detection reagent is recommended.

Operating temperature range: 0 – 50°C.

Video Overview

Latent blood development on patterned fabric

Reaction Principle: The reagent reacts with catalase and hemoglobin in blood.

Reagent Composition: Bottle A: Color-developing components; Bottle B: Auxiliary reagents

Storage Conditions: Store at room temperature, protected from light. Storage at 2–8°C is recommended.

Product Features

• Safe and environmentally friendly. Uses a water-based solvent, with natural gardenia blue and phycocyanin as the color-developing components.

• Simple operation. Direct spraying avoids damaging bloodstains through multiple operations.

• Instant color development. Fresh bloodstains develop color instantly; aged bloodstains develop color within 30 seconds.

• High visibility. Develops a distinctive bright blue color, visible even on dark surfaces.

• Long-lasting color development. The color persists, making observation and recording very easy.

• Wide adaptability. Suitable for both porous and non-porous surfaces.

• High sensitivity. Clearly reveals bloodstains diluted up to 10,000 times.

• Fixes bloodstains. Blood does not spread; fingerprint ridge details are clearly developed with no blurred background.

• High specificity. No false positives from rust, heavy metals, disinfectants, etc.

• Does not damage DNA. Does not interfere with subsequent DNA testing.

Operating Instructions:

1. Pour the entire contents of Bottle B into Bottle A. Shake gently to mix well.

2. Spray onto the area of the suspected bloodstain. Observe the development after the first spray before deciding whether to spray again.

3. Observe the color development and record in a timely manner.

Development display

Before-and-after color development effect on transparent plastic film

Latent bloodstain on red brick

Patterned fabric

Bloody fingerprint

Black glasses case

Sensitivity: Can clearly develop blood diluted 10,000 times or more

Note: Sensitivity depends on the substrate material and color.

成都龙观飞宇科技有限公司 www.iLongon.com