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Thermo Scientific™ Colistin Disk

Catalog No. R21123
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25 Disks
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R21123 25 Disks
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Catalog No. R21123 Supplier Thermo Scientific™ Supplier No. NRE0396
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Description

Confirm Gram-stain reactions and presumptively identify anaerobic, Gram-negative bacilli with this ready-to-use, colistin-impregnated disk.

Confirm Gram-stain reaction of anaerobes and presumptively identify anaerobic, Gram-negative bacilli with Thermo Scientific™ Remel™ Colistin Disk.

In 1971 Sutter and Finegold1 recommended a method to identify anaerobic, Gram-negative bacilli based on the difference in response to an antibiotic. Accordingly, organisms can be grouped based on their characteristic inhibitory patterns with erythromycin, rifampin, colistin, penicillin, kanamycin and vancomycin2,3.

Confirm Gram-stain reactions of anaerobes and presumptively identify anaerobic, Gram-negative bacilli with Colistin Disks.

  • Ready to use: Colistin-impregnated disk.
  • Easy to interpret: Sensitive organisms exhibit an inhibitory zone greater than 10 mm around the antibiotic disk while resistant organism exhibit no inhibitory zone i.e., a zone that is less than 10 mm around the disk.

Colistin Disk contains 10 μg colistin.

Disks impregnated with erythromycin, rifampin, colistin, penicillin, kanamycin and vancomycin can be used to identify anaerobic, Gram-negative bacilli based on the zone of inhibition they exhibit. Colistin and vancomycin confirm the Gram-stain reaction, which is helpful with Clostridia that stain Gram-negative. Penicillin, rifampin and kanamycin separate Bacteroides and Fusobacterium.

Specifications

Content And Storage 2°C to 8°C
Description Colistin Disk
Concentration 10 μg
Format Vial
Packaging Type 25 Disks/Vial
Quantity 25 Disks