High quality

Nejvyšší dosažitelná kvalita

We ensure careful final inspection independently on manufacturing. The products come with quality certificates, which are available in electronic form... 

Read more

Certificate ISO PDF

We possess ISO 9001:2008 certificate: “Manufacturing high quality reagents...

Read more

Firm’s testimony

  • Production of reagents of the highest quality
  • Demanding output control
  • Emphasis is put...

Read more


Materials for testing of RNA coronavirus, causing

LA Hot Start Plain Master Mix


LA Hot Start Plain Master Mix is optimized mix for universal use in PCR. It contains a blend of two DNA polymerases, deoxyribonucleotide triphosphates (dNTPs), anti-Taq monoclonal antibody, buffer, stabilizers, additives and other components. This product is the most advanced variant of Master mix for PCR:

Rapid samples preparation, 500 µl aliquots

  • 2x concentrated Master Mix is in 500 μl aliquots. This decreases possibility of contamination and allows rapid preparation of the samples by adding just specific oligonucleotide primers, template DNA and H2O (included).

LA (Long and Accurate)

  • The Mix contains unique blend of two thermostable DNA polymerases. One of them is Taq DNA polymerase, which is highly processive but lacks a 3’->5’ exonuclease proofreading activity, which accounts for relatively high error rate during DNA amplification. Second polymerase is less processive but possesses 3’->5’ exonuclease activity necessary for proofreading. The polymerases mix decreases error rate during synthesis of complementary DNA strands and preserves high speed of DNA synthesis. The repair capability allows amplification of complex genomic DNA fragments (up to 15 kbps in size) and less complex viral DNA (up to 40 kbps in size) and significantly decreases error rate when compared to Taq DNA polymerase

Hot Start

  • The Mix contains monoclonal antibody, which binds DNA polymerases and thereby blocks their enzymatic activity and amplification of nonspecific DNA fragments. After the first denaturation cycle, the antibody is irreversibly inactivated and Taq DNA polymerase regains enzymatic activity.

Suitable for real-time PCR (qPCR)

  • The Mix does not contain a dye and therefore before electrophoresis it is necessary to add loading buffer.
  • Because of absence of a dye the Mix can be also used for qPCR. 

High efficiency and specificity

  • The Mixt allows highly sensitive and specific amplification of corresponding fragments of DNA or cDNA; it possesses MgCl2 at a concentration suitable for most PCRs.


Technical data

Components and packaging

  • 1 tube with 0.5 ml LA Hot Start Plain Master Mix (for 40 reactions, 25 µl each).
  • 1 tube with 1.5 ml PCR Ultra H2O.


  • 2x concentrated LA Hot Start Plain Master Mix contains: 150 mM Tris-HCl, pH 8.8 (at 25oC), 40 mM (NH4)2SO4, 0.02% Tween 20, 5 mM MgCl2, 400 µM dATP, 400 µM dCTP, 400 µM dGTP, 400 µM dTTP, 100 U/ml Taq DNA polymerase blend, monoclonal antibody anti-Taq (38 nM), stabilizers and additives.


  • At temperature -20oC ± 5°C; shortly (up to one week) at temperature 4 - 30oC. This decreases demands for transportation (Nature friendly). Material can be repeatedly defrosted.

Purity and quality control

  • Purity of Taq DNA polymerases is verified electrophoretically (SDS PAGE). Material is free of nucleases. 
  • Each batch of LA Hot Start Plain Master Mix is tested for amplification of a single copy gene in genomic DNA. 


Cat. No. Product name and specification Amount Price
L611 LA Hot Start Plain Master Mix 40 reactions 26.67 EUR
L612 LA Hot Start Plain Master Mix 200 reactions 103.75 EUR
L613 LA Hot Start Plain Master Mix 1000 reactions 416.25 EUR
L613xl LA Hot Start Plain Master Mix 4x 1000 reactions 999.17 EUR
L613bl LA Hot Start Plain Master Mix 1600 reactions, 20ml 333 EUR