Introduction
During analysis, blood cells are suspended and transported within a precisely controlled stream of sheath fluid. This fluid creates a "hydrodynamic focusing effect", aligning individual cells in single file as they pass through the instrument's sophisticated detection systems – typically optical (lasers) and/or impedance sensors. This precise alignment is paramount; it ensures each cell is measured individually and consistently, enabling accurate determination of cell volume, internal complexity, granularity, and other critical parameters.
Therefore, Sysmex-specific sheath fluid is far more than a simple diluent. It is an "isotonic, particle-free, sterile solution" engineered to strict specifications. Its composition, pH, conductivity, and osmolarity are precisely controlled to maintain cell integrity during analysis, prevent lysis or swelling, and avoid interfering with sensitive electronic or optical measurements. Using the correct, manufacturer-certified sheath fluid is non-negotiable. Substandard or incorrect fluids compromise hydrodynamic focusing, lead to aberrant cell analysis, generate erroneous results and flags, increase background noise, and can cause significant instrument damage or downtime. Ultimately, the integrity of every CBC result hinges on the consistent quality and performance of the sheath fluid enabling the Sysmex analyzer's core measurement principle. STAC's sheath has the same quality of Sysmex since we've set up JV with Sysmex in 1994.
Specifications
- For Sysmex 5-part series:
XE2100/XE-5000
|
Code |
Description |
Specification |
Period of Validity |
Temperature |
|
030004 |
STAC-SHEATH |
20L/box |
24m |
2-35℃ |
Product detail
Application: Sheath for Sysmex hematology instrument is applicable to the Sysmex 5-part series: XE2100/XE-5000.
- Origin: Shanghai, China
- Certification: CE, ISO 13485, CNAS L18717, MSDS
- Price: Negotiable
- Delivery date: Negotiable
- Packing: export standard
- MOQ: 1 set
FAQ
Q: What are the storage requirements for sheath fluid?
A: Strict protocols include:
● Temperature: Store away from light at 15–30°C (refer to reagent label).
● Contamination prevention: Seal after opening; avoid dust/microbial contamination.
● No freezing: Crystallization alters physicochemical properties.
● First-expired-first-out: Use before expiration date.
Q: Can sheath fluid with precipitates or cloudiness be used?
A: Immediately discontinue use!
Precipitation or turbidity indicates deterioration/contamination from improper storage (e.g., temperature fluctuations, expiration). Continued use may clog tubing, damage instruments, and generate erroneous results (e.g., abnormal WBC scattergrams).
Q: How to minimize sheath fluid waste?
A: Optimization strategies:
● Activate "Energy Save Mode" (if available) to pause consumption during idle periods.
● Avoid frequent power cycling – startup rinsing consumes fluid.
● Regularly inspect tubing seals for leaks.
Q: How to safely dispose of waste sheath fluid?
A: Treat as chemical laboratory waste:
● Do not drain into sewage (contains buffer salts).
● Collect in leak-proof containers labeled "Inorganic Salt Solution" for professional disposal.
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