ponceau s造句

• The intensity of Ponceau S staining decreases quickly over time, so documentation should be conducted rapidly.
• Ponceau S is a negatively charged reversible dye that stains proteins a reddish pink color and is removed easily by washing in water.
• Because stain-free technology does not require staining and destaining steps, it can be significantly faster than methods that utilize Ponceau S or Sypro Ruby stains.
• The uniformity and overall effectiveness of transfer of protein from the gel to the membrane can be checked by staining the membrane with Coomassie Brilliant Blue or Ponceau S dyes.
• A linear range of up to 140 ?g is reported for Ponceau S with poor reproducibility due to its highly time-dependent staining intensity and low signal-to-noise ratio.
• Ponceau S is the more common of the two, due to its higher sensitivity and water solubility, the latter making it easier to subsequently destain and probe the membrane, as described below.