DNA collection flocking swab (protective tube-desiccant)

Description

The HXZR-II swab uses advanced nylon flocking technology, with short vertical fibers on the tip to prevent DNA cells from dispersing into the swab matrix, enabling faster and more efficient elution. Each swab is inserted into a round plastic base and protected by a transparent PP tube with a rubber cap containing a color-indicating desiccant to absorb moisture. Sterilized via ethylene oxide, the swabs are DNA-free prior to use. The swab’s breakable shaft design facilitates automated extraction workflows. After sampling, the protective tube prevents contamination and preserves the integrity of biological evidence.

Key Features:

• Nylon flocked tip for efficient DNA collection and elution

• Breakable shaft for automated extraction systems

• Protective PP tube with desiccant prevents sample degradation

• Ethylene oxide sterilized to eliminate residual DNA

• Transparent tube and labeled packaging for sample identification

• Desiccant changes color to indicate effectiveness (blue = active, pink = expired)

Application Range:

• Forensic trace DNA collection from stains or surfaces

• Collection and transport of biological evidence

• Laboratory DNA extraction and analysis

• Preservation of micro-scale biological samples

Specifications / Parameters:

• Swab head length: 20 mm

• Swab head diameter: 5 mm

• Shaft diameter: 2.5 mm

• Break point distance: 30 mm from tip

• Swab total length: 107 mm

• Protective tube length: 130 mm, outer diameter: 13 mm

• Packaging: 180 × 45 mm dialysis paper bag

• Swab head material: Nylon; shaft: ABS

• Tube material: PP; desiccant: 0.2 g color-indicating silica gel

• Desiccant functionality: blue active, pink expired

• Extraction solution: distilled water, 10 mL/bottle, 2 bottles per pack

• Kit contents: 20 swabs + 2 extraction solution bottles per pack

Usage Instructions:

1. Remove the protective tube and spray swab with extraction solution.

2. Wipe the target trace evidence with the swab.

3. Replace the protective tube; desiccant absorbs moisture to prevent degradation.

4. Place swab in dialysis bag and label with sample information.

5. In the lab, break the swab at the break point; leave the tip in the tube for extraction.