Welcome to Cytomark - distributed exclusively in the UK by Caltag Medsystems

Cytomark is a manufacturer of high quality reagents for Flow Cytometry. Their product portfolio includes the TransFix® – Cellular Antigen Stabilisation Reagent Range and CD4 Blood Controls for Flow Cytometry.

• Download the TransFix® flyer here
• Download the Blood Controls flyer here

TransFix® - A Cellular Antigen Stabilisation reagent.

TransFix® is a CE marked cellular stabilisation solution that preserves cell surface antigens for a minimum of 10 days at 2-8°C and 22°C and for 4 days at 37°C. TransFix® is added to peripheral whole blood samples at the time of venepuncture and provides stabilisation to permit extended storage and/or transportation. This allows greater flexibility for testing and potential reduction in costs e.g. by allowing samples to be batched.

TransFix® can be used to stabilise Peripheral Whole Blood, Cerebrospinal Fluid (CSF), Bone Marrow and Fine Needle Aspirates for subsequent analysis by flow cytometry.

TransFix® is available in several formats: direct draw vacuum blood collection tubes, blood or CSF sample storage tubes and in bulk volumes. View the complete product list here. Samples are available for all formats, please request a sample by email or call us +44 (0)12820 827460.

The Benefits of TransFix®:

• Stabilises cell surface antigens for up to 10 days
• Easy to use, just add TransFix® and mix by inversion
• Ensures sample integrity during transportation between clinical sites
• Eliminates the need for weekend and evening work
• Allows for repeat testing of samples without the need for patient recall and repeat phlebotomy

» Download the product data sheets here.

Blood Controls for Flow Cytometry - Vital Tools In Evaluating Many Human Immunodeficiencies.

Cytomark have developed two stabilised preparations of human blood with known CD4 absolute counts. They are intended for use as daily run controls in blood sample analysis.

Benefits of CD4 Blood Controls include:

• Available in two formats, CD4 Low and CD4 Normal
• Verification of monoclonal antibody and FACS reagents
• Validation of flow cytometer performance
• Verification of red blood cell lysis
• Validation of operator technique

» View the product list here.

» Download the product data sheets here.

Samples are available for all products, please request your samples by calling +44 (0) 1280 827460 or emailing office@caltagmedsystems.co.uk.

Visit the Cytomark website for further information, including applications and technology and preparation. www.cytomark.co.uk.

If you are having difficulty downloading product data or require further information, please contact us.