Suitable for immunoblotting (western or dot blot), ELISA, immunoperoxidase electronmicroscopy and immunohistochemistry as well as other peroxidase-antibody basedenzymatic assays requiring extremely low background levels, absence of F(c) mediatedbinding, lot-to-lot consistency, high titer and specificity. ELISA: 1: 2,000 - 1: 10,000. Western blot: 1: 500 - 1: 3,000. Immunohistochemistry. Other applications not tested. Optimal dilutions are dependent on conditions and should be determined by the user.
Restrictions
For Research Use only
Reconstitution
Restore with 1.0 mL deionized water (or equivalent)
Concentration
1.0 mg/mL (by UV absorbance at 280 nm)
Buffer
0.02 M Potassium Phosphate, 0.12 M Sodium Chloride, pH 7.2, 0.01 % (w/v) Gentamicin Sulfate, 10 mg/mL BSA (IgG and Protease Free)
Preservative
Gentamicin sulfate
Precaution of Use
This product contains Gentamicin sulfate: a POISONOUS AND HAZARDOUS SUBSTANCE, which should be handled by trained staff only.
Handling Advice
Avoid repeated freezing and thawing. Centrifuge product if not completely clear after standing at room temperature. Do Not Add Sodium Azide
Storage
4 °C/-20 °C
Storage Comment
Store vial at 2-8 °C prior to restoration. Following restoration product can be stored undiluted at 2-8 °C for up to one month or (in aliquots) at-20 °C or below.
Fluorescein is a fluorophore commonly used to label proteins - protein-fluorescein conjugates are not usually susceptible to precipitation. In addition to its relatively high absorptivity, excellent fluorescence quantum yield and good water solubility, fluorescein has an excitation maximum of 494 nm that closely matches the 488 nm spectral line of the argon-ion laser, making it an important fluorophore for confocal laser-scanning microscopy and flow cytometry applications. Its fluorescence is? pH sensitive and is significantly reduced below? pH 7. Fluorescein emits most strongly between 500 and 550 nm, but it has a relatively broad emission spectrum reaching to over 600 nm. Several derivatives of fluorescein are commonly used, including FITC (Fluorescein Isothiocyanate), carboxylates and succinimidyl esters.Synonyms: Fluorescein Isothiocyanate