SpermTec gradient G-80 & G-45

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SpermTec® Gradient is respectively an 80% or 45% diluted silane coated silica particles density-gradient used for the separation and purification of sperm for use in ART.

No osmatic stress for the gametes when used in combination with IVF Basics® HTF washing medium.


Features & Benefits:

1,5 years shelf life
Silane coated silica particles
Osmolair stable with EBSS salts
Removes sources of ROS
Removes bacteria
Removes sperm with abnormal DNA
Improves cryo-survival
Improves yield and recovery compared to swim-up techniques


Quality control:

Each lot is thoroughly quality control tested, resulting in a very consistent product quality and reliability.

  • pH:              7,40 +/- 0,2
  • Osmolality:   325 +/- 15 mOsm/kg (45% gradient)
    315 +/- 15 mOsm/kg (80% gradient)
  • Endotoxin:    < 0,5 EU/ml
  • Sterility:        SAL 10-3
  • Density:        1,0970 – 1,1070 g/ml (80% gradient)
  • Viscosity:      < 1.65 cP (80% gradient)
  • SST:             ≥ 80%
  • Certificate of Analysis and MSDS are available upon request.



Catalogue No.

With Gentamicin, Without Phenol Red

Bottle Size
 ST-80-10 10 ml
 ST-80-50 50 ml
 ST-80-100 100 ml
 ST-80-250 250 ml
 ST-80-500 500 ml
 ST-45-10 10 ml
 ST-45-50 50 ml
 ST-45-100 100 ml
 ST-45-250 250 ml
 ST-45-500 500 ml


 Catalogue No.

 With Phenol Red And Gentamicin

Bottle Size
 ST-80-10RG  10 ml
 ST-80-50RG  50 ml
 ST-80-100RG  100 ml
 ST-80-250RG  250 ml
 ST-80-500RG  500 ml
 ST-45-10RG  10 ml
 ST-45-50RG  50 ml
 ST-45-100RG  100 ml
 ST-45-250RG  250 ml
 ST-45-500RG  500ml


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