Instrument Wash Solution
Catalog No.: DCP-IWS
Size:
1,000 mL (packaged within 4 x 250 mL amber bottles)
Sterile: Filtered 0.1-micron membrane ONCE, 0.04-micron membrane ONCE
Storage: 2-8 °C, in dark container
Shelf Life:
Unopened: 2 months
Opened: 24 hours
*Use before the expiry date given on the product label.
Description:
A reagent fully compatible (not exclusive) with the Blood Coagulation Analyzer (Catalog No.: DCBio-SACA)
[Link]
A ready-to-use aqueous disinfectant and decontamination solution formulated specifically for wiping and disinfecting the external surfaces of the BK-CA04 blood coagulation analyzer and similar optical coagulometers. Contains sodium hypochlorite (NaOCl) at 0.5% active chlorine (5,000–5,250 ppm available chlorine), providing broad-spectrum, validated biocidal activity against vegetative bacteria, mycobacteria, fungi, lipid and non-lipid enveloped viruses (including SARS-CoV-2, HIV, HBV, HCV), and blood-borne biological contaminants encountered in clinical hemostasis laboratory environments.
CRITICAL RESTRICTION — READ BEFORE USE
For external surface wiping only. Do NOT introduce this solution — or any sodium hypochlorite (bleach) product — into the BK-CA04 optical cuvette, sample channels, reagent channels, or any internal fluid pathway. The BK-CA04 uses a 470 nm optical colorimetric detection system; sodium hypochlorite is a potent oxidizing agent that absorbs and/or bleaches chromophoric materials at 470 nm, permanently damaging the photosensor, optical filter, and cuvette surface coating. This damage is irreversible and will render the analyzer non-functional.
Internal surface maintenance: Use distilled water flush only, per the BK-CA04 User Manual internal cleaning protocol.
The BK-CA04 Analyzer: Why the 470 nm Sensor Is Vulnerable
The BK-CA04 is an optical colorimetric coagulation analyzer that measures coagulation endpoints by detecting changes in optical density (turbidity) of the plasma-reagent mixture as fibrinogen is converted to fibrin. The analyzer uses a 470 nm wavelength LED photosource and matched photodetector, with a polystyrene or glass cuvette as the reaction vessel.
Sodium hypochlorite (NaOCl / bleach) is incompatible with this system for three compounding reasons:
- Direct optical interference at 470 nm: Published analytical chemistry literature confirms that hypochlorite/chlorine species in aqueous solution exhibit measurable absorbance in the visible range, including the 470 nm region. Residual hypochlorite in a cuvette would generate baseline signal shifts and artifactual turbidity readings, producing falsely prolonged or shortened clotting times.
- Oxidative bleaching of the cuvette surface: Sodium hypochlorite is one of the most potent oxidizing agents in laboratory use. Polystyrene and PMMA cuvette materials are susceptible to surface oxidation, yellowing, micro-crazing, and permanent optical degradation when exposed to hypochlorite — even at brief contact times at 0.5% concentration. Once the cuvette surface is oxidized, it cannot be restored; it must be replaced at instrument-level service cost.
- Photosensor and optical filter damage: Residual chlorine vapor or solution wicking through capillary spaces into the detection module can attack the optical bandpass filter (which is calibrated to pass 470 nm and reject other wavelengths) and the photodetector's photosensitive surface. Chlorine gas evolved from hypochlorite solutions reacts with sensor film materials, permanently shifting the spectral response of the detector. This damage is irreversible without full module replacement.
Composition:
| Ingredients |
| Sodium Hypoclorite |
| Deionized Water |
* All DiagnoCine Precision Sterile filtered-sterilized with 40 nanometer. Thus, mycoplasma contamination is prevented. The smallest size mycoplasma type can be about 0.2 microns.
* This product is manufactured under ISO 13485-certified and CE-approved facilities (Suppliers of DiagnoCine Precision). All final packaging, quality assurance, and testing are done at the DiagnoCine R&D and Quality Testing Center. All specific customization requests and assembly were accomplished at DiagnoCine Precision in Totowa, New Jersey, USA
