Free Evaluation Samples of TransFix®

Cytomark, division of caltag medsystems, manufacturer of TransFix for flow cytometry sample stabilisationSamples for flow cytometry analysis degrade rapidly after collection, affecting the immune profile of sample.

TransFix® is added at the point of collection, and allows for an extended time frame for flow cytometric testing. Useful for:

  • analysing fragile samples such as cerebrospinal fluid;
  • batching or shipping samples to other sites;
  • and those awkward samples that come in late on a Friday.

If you are performing flow cytometry and would be interested to try TransFix, we are providing free evaluation samples and free shipping to all new UK customers from 1st April until the end of June 2020.

Yes, I’d like to try!

Great! Email to discuss your requirements. We’ll ask for your delivery address and a few details about what you would like to use TransFix for so we can advise the best product format for your application.

Once you’ve tried TransFix, be sure to let us know how you got on!

*1 sample per customer, offer ends 30th June 2020. Free samples and shipping for delivery addresses in the UK only.

TransFix Sample Sizes

TransFix comes in 5 forms, and we offer sample sizes of all our product format:

TransFix bulk for flow cytometry stabilization
TransFix Bulk

Just TransFix. Lends itself to multiple applications and gives greatest flexibility to the user. We recommend adding 1-part TransFix to 5-part sample for most applications.

Sample size is 1x 1ml TransFix. Product code TFB-01-1


TransFix Sample Storage Tubes for flow cytometryTransFix Sample Storage Tubes

A 1.2ml screw-cap tube pre-filled with 0.2ml TransFix. Simply add 1ml of sample already collected on anticoagulant if required, and mix by inversion.

Sample size is 2x 1.2ml TransFix Sample Storage Tubes, product code TF-01-2


TransFix/EDTA Vacuum BLood Collection Tubes for flow cytometry stabilizationTransFix/EDTA Vacuum Blood Collection Tubes

Blood collection tubes pre-filled with TransFix and K3 EDTA to directly collect blood. Minimal sample handling at the point of collection.

Sample size is 2x TransFix/EDTA Vacuum Blood Collection Tubes, available in 3ml or 9ml final volume. Product codes are TVT-03-2 or TVT-09-2


TransFix/EDTA CSF Sample Storage Tubes for flow cytometry stabilizationTransFix/EDTA CSF Sample Storage Tubes

Optimised for samples with low cell numbers, the CSF tubes contain 0.2ml TransFix/EDTA for collection of 1-2ml CSF.

Sample size is 2x TransFix/EDTA CSF Sample Storage Tubes. Product code TF-CSF-5-2


Circulating tumor cell TransFix/EDTA Vacuum Blood Collection Tube for isolation and characterization of CTCsCirculating Tumour Cell TransFix/EDTA Vacuum Blood Collection Tubes

Optimized Blood collection tubes to directly collect blood for downstream CTC isolation or characterisation.

Sample size is 2x Circulating Tumour Cell TransFix/EDTA Vacuum Blood Collection Tubes. Product code CTC-TVT-09-2




If you have any questions about TransFix, please let us know! You can contact us below, or find more information at

Contact Us

Cytomark are a division of Caltag Medsystems. TransFix products are distributed in the UK by Caltag Medsystems.

Free Evaluation Samples of TransFix®
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