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Acid Fast Stain (Ziehl-Neelsen)
Acid-fast staining remains a front-line microscopic step in tuberculosis and mycobacterial testing. Procurement hinges on matching reagent volume and component format to the laboratory’s staining method.
In workflows that process sputum, alveolar lavage fluid, pleural and abdominal fluid, or paraffin sections, the stain is a consumable rather than an instrument. Guoke Medical’s Acid Fast Stain (Ziehl-Neelsen) is listed as a three-component reagent set under product code GKPD014.
The listing identifies compound red staining solution, decolourising solution, and methylene blue staining solution. It states that the product uses the Ziehl-Neelsen method for acid-fast staining of bacteria such as Mycobacterium and Nocardia.
Stated uses include diagnosis of infectious diseases such as tuberculosis, evaluation of chemotherapy results, and epidemiological outbreak assessment. The same description notes suitability for paraffin sections and the sample types above.
Configuration is split between manual smear and dyeing machine formats. Manual components are listed in 20 ml, 100 ml, 200 ml, 250 ml, 450 ml, and 500 ml sizes, while machine components are listed at 1000 ml and 5000 ml.
That split has operational consequences. Smaller manual bottles suit low-throughput or decentralised microscopy; larger machine volumes imply higher-throughput staining equipment and different storage, handling, and waste planning.
Before ordering, verify current availability, pack size, component volumes, documentation, MOQ, lead time, shipping, and quotation. Buyers should also confirm that the selected format is compatible with their staining platform or manual protocol.
The listing establishes reagent composition, stated applications, and volume options, but not clinical performance or validation data. Those details belong in a documentation review before purchase.
Why it matters:
The main procurement risk is a format mismatch: a kit that fits one staining workflow may not fit another. Confirm the component volume and platform compatibility first.
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