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  • Cell Culture Grade Water

    Quality Biological

    Deionized, Ultra Pure, Endotoxin Free, Sterile QBI's Cell Culture Grade Water is high quality water for use as a solvent in the preparation of cell culture media and laboratory reagents. Available in many sizes to meet your needs, QBI's Cell Culture Grade Water for Cell Culture…

  • Normal Saline

    Quality Biological

    Normal Saline’s isotonic solution is used as a general laboratory diluent. Features with 9 g/L sodium chloride for non clinical use Applications Normal Saline can be used in the following microbiology applications: solvent, washing agent for cells/bacteria/specimen,…

  • Cytofluid

    Quality Biological

    Proprietary Sheath Fluid Applications   Designed specifically for flow cytometry applications Contents Proprietary Formula Quality Biological is an ISO 9001:2015 certified manufacturing facility.

  • 50X TAE Buffer

    Quality Biological

    Tris-acetate provides electrical conductivity and maintains pH. EDTA inhibits metal dependent nucleases by chelating the divalent cations (Ca2+, Mg2+), thus protecting the DNA from nucleases during the run. Filtered through a 0.22 µm membrane Dnase, Rnase, and Protease tested …

  • SOC Medium

    Quality Biological

    SOC medium is a ready-to-use solution, useful in the final step of bacterial cell transformation to obtain maximal transformation efficiency of E. coli. Features Wthout magnesium chloride, needs to be added before use Autoclave sterilized Applications SOC is a microbial…

  • DEPC Treated Water

    Quality Biological

    Nuclease and Endotoxin-Free, Sterile DEPC-treated water is certified nuclease-free and supplied in four bottles containing 1 L each to ensure sterility and inactivation of DEPC. It is rigorously tested for contaminating nonspecific endonuclease, exonuclease, and RNase activity, protease. …

  • 1X TE, pH 8.0

    Quality Biological

    TE is composed of buffering agent Tris, and chelating agent EDTA. EDTA prevents degradation of DNA and RNA by chelating magnesium (or other divalent metal ions). Together, this Tris-EDTA based solution solubilizes DNA or RNA, while protecting it from degradation. Filtered through a 0.22…

  • 10X PBS, pH 7.4

    Quality Biological

    PBS (phosphate buffered saline) is a balanced salt solution used for a variety biological and cell culture applications, such as washing cells before dissociation, transporting cells or tissue, diluting cells for counting, and preparing reagents. Features Endotoxin and Performance tested…

  • DPBS without Ca & Mg, 1X

    Quality Biological

    DPBS is a balanced salt solution (BSS) used for the handling and culturing of mammalian cells. Calcium and magnesium facilitate cell binding and clumping. DPBS without these ions can be used to wash and rinse suspended cells. Features without Phenol red Applications DPBS can be…

  • USDA Origin Fetal Bovine Serum

    Quality Biological

    USDA FBS is used as a supplement in classical cell culture media such as DMEM, EMEM, RPMI-1640 and IMDM. USDA FBS origin’s lie outside of the US, but quality approved by the United States Department of Agriculture. USDA FBS both nourishes and protects the cells in a way that almost…

  • 1M TRIS-HCl, pH 8.0

    Quality Biological

    Tris is a buffer component in molecular biology, tissue culture, and electrophoresis procedures. These solutions of Tris Hydrochloride and provide convenient and highly purified solutions. Tris is compatible with many enzymes in molecular biology, for example DNA modifying enzymes, because its…

  • Gentamicin, 50mg/mL

    Quality Biological

    Gentamicin is an aminoglycoside complex produced by fermentation of Micromonospora purpurea or M. echinospora. It is used as the sulfate salt. Features Ready to use solution Applications Gentamicin acts by binding to the 30S subunit of the bacterial ribosome leading to inhibition…

  • 5M Sodium Chloride

    Quality Biological

    Sodium Chloride, 5M is suitable for molecular biology, protein chemistry and biochemical applications. 5M concentration Filtered through a 0.22 µm membrane Dnase, Rnase, and Protease tested Applications Sodium Chloride, 5M is free of detectable endonucleases,…

  • Cell Freezing Medium B

    Quality Biological

    It is important to store cells for future studies. Cryopreservation ensures that you have back-up cells in case of contamination and loss of cell supply. It is best to cryopreserve cells when they are at their maximum growth rate or almost confluent. Cell Freezing Medium A protects cells from…

  • 10X RNA Gel Loading Solution

    Quality Biological

    RNA Gel Loading Solution, 10X is prepared according to Sambrook, Fritsch & Maniatis (1989). The purpose of this reagent is to insure that the RNA samples remain submerged in the wells of the gel, by making them denser than the electrophoresis buffer. Contains two dyes, bromphenol blue…

  • Instant Nonfat Dry Milk

    Quality Biological

    Non Fat Dry Milk  Can be used for making blocking solution Quality Biological is an ISO 9001:2015 certified manufacturing facility.

  • 0.5M EDTA, pH 8.0

    Quality Biological

    EDTA (Ethylenediaminetetraacetic acid), a metal chelator, is widely used in molecular biology as a chemical reagent to reduce nuclease activity (i.e. metalloenzyme). EDTA solution can be used to study cell biology, molecular biology, bioactive small molecules, biochemicals, solutions and reagents,…

  • ACK Lysing Buffer

    Quality Biological

    Ammonium-Chloride-Potassium (ACK) Lysing Buffer is used for the lysis of red blood cells in samples containing white blood cells, such as EDTA-treated whole blood, buffy coats, and bone marrow. Features Easy to use Fast Remove red blood cells while keeping the white blood cells …

  • 2M TRIS-HCl, pH 6.8

    Quality Biological

    Tris solutions are formulated into working concentrations for preparing the stacking and resolving portions of native or SDS-PAGE gels using discontinuous buffer systems according to Laemmli (1970) or Ornstein and Davis (1959). Tris HCl Buffer is compatible with many enzymes in molecular biology…

  • 2M TRIS-HCl, pH 8.8

    Quality Biological

    Tris solutions are formulated into working concentrations for preparing the stacking and resolving portions of native or SDS-PAGE gels using discontinuous buffer systems according to Laemmli (1970) or Ornstein and Davis (1959). Tris HCl Buffer is compatible with many enzymes in molecular biology…

  • 10X TBE

    Quality Biological

    TBE (TRIS Borate EDTA) is often used in procedures involving nucleic acids, the most common being electrophoresis in molecular biology. Tris-acid solutions are effective buffers for slightly basic conditions, which keep DNA deprotonated and soluble in water. Used both as a running buffer and…

  • Glutamine XL™, 200mM

    Quality Biological

    Glutamine XL is useful as a cell culture media supplement. Features with stable L-Alanyl-Glutamine Applications Standard, unstabilized solutions of L-glutamine spontaneously break down over time to release cytotoxic amines. Glutamine XL is a stabilized solution that prevents…

  • 10% SDS

    Quality Biological

    Sodium Dodecyl Sulfate (SDS) is an anionic detergent with applications in SDS-PAGE protein analysis and nucleic acid purification.  It is a wetting agent that is effective in both acid and alkaline solutions, and is most often used as a protein and lipid solubilization reagent.  SDS is…

  • 1M Hepes Buffer, pH 7.3

    Quality Biological

    HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid ) is a zwitterionic organic chemical buffering agent at most biological pH’s and is categorized as an all- purpose buffer available for biological research. Features pH 7.2 - 7.6 Applications HEPES 1M is used as a…

  • Cell Freezing Medium A

    Quality Biological

    It is important to store cells for future studies. Cryopreservation ensures that you have back-up cells in case of contamination and loss of cell supply. It is best to cryopreserve cells when they are at their maximum growth rate or almost confluent. Cell freezing medium A protects cells from…

  • LB Broth (Lennox)

    Quality Biological

    LB Broth, Lennox is a ready-to-use microbial growth medium used for the cultivation of E. coli. Features low (5 g/L) salt formulation Autoclave sterilized Applications LB Broth is a low-salt formulation in comparison to its counterpart LB Broth, Bertani Miller. Lennox is also…

  • 20% SDS

    Quality Biological

    Sodium Dodecyl Sulfate (SDS) is an anionic detergent with applications in SDS-PAGE protein analysis and nucleic acid purification.  It is a wetting agent that is effective in both acid and alkaline solutions, and is most often used as a protein and lipid solubilization reagent.  SDS is…

  • 1X PBS, pH 7.4

    Quality Biological

    PBS (phosphate buffered saline) is a balanced salt solution used for a variety biological and cell culture applications, such as washing cells before dissociation, transporting cells or tissue, diluting cells for counting, and preparing reagents. Features Endotoxin and Performance…

  • Molecular Biology Grade Water

    Quality Biological

    Molecular Biology Grade (MBG) Water, Ultra Pure is prepared by reverse osmosis, passed through fine carbon, deionized through two resin beds, and serially filtered through 0.1 µm positively charged membranes, to yield a product with an endotoxin level of less than 0.03 EU/ml. Dnase,…

  • 5X DNA Gel Loading Solution

    Quality Biological

    DNA Gel Loading Solutio, 5X is prepared according to Sambrook, Fritsch & Maniatis. The purpose of this reagent is to be a tracking dye during electrophoresis. It ensures that DNA samples remain submerged in the wells of the gel, by making them denser than the electrophoresis buffer. …

  • Blocking Solution

    Quality Biological

    Blocking is a very important step of western blotting, as it prevents antibodies from binding to the membrane nonspecifically. Blocking is often made with 5% BSA or nonfat dried milk to reduce the background. Nonfat dried milk is often preferred as it is inexpensive and widely available. However,…

  • DPBS with Ca & Mg, 1X

    Quality Biological

    DPBS is a balanced salt solution (BSS) used for the handling and culturing of mammalian cells. Calcium and magnesium facilitate cell binding and clumping. DPBS without these ions can be used to wash and rinse suspended cells. Features without Phenol red Applications DPBS can be…

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