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Ponceau S, Acid Red 112, or C.I. 27195 (systematic name: 3-hydroxy-4-(2-sulfo-4-[4-sulfophenylazo]phenylazo)-2,7-naphthalenedisulfonic acid sodium salt [1]) is a sodium salt of a diazo dye of a light red color, that may be used to prepare a stain for rapid reversible detection of protein bands on nitrocellulose or polyvinylidene fluoride (PVDF) membranes (western blotting), as well as on ...
[1] [2] [3] The Diff-Quik procedure is based on a modification of the Wright-Giemsa stain pioneered by Harleco in the 1970s, [1] and has advantages over the routine Wright-Giemsa staining technique in that it reduces the 4-minute process into a much shorter operation and allows for selective increased eosinophilic or basophilic staining ...
Wright's stain is a hematologic stain that facilitates the differentiation of blood cell types. It is classically a mixture of eosin (red) and methylene blue dyes. It is used primarily to stain peripheral blood smears , urine samples, and bone marrow aspirates , which are examined under a light microscope .
Contrary to popular belief, you don’t want to use hot water on a stain during the initial cleaning stage, as that will also set it. Also, never use salt to remove a stain. It can fade color ...
The pronunciation of the vowel of the prefix di-in words such as dichotomy, digest (verb), dilate, dilemma, dilute, diluvial, dimension, direct, dissect, disyllable, divagate, diverge, diverse, divert, divest, and divulge as well as their derivational forms vary between / aɪ / and / ɪ / or / ə / in both British and American English.
Normally, pronunciation is given only for the subject of the article in its lead section. For non-English words and names, use the pronunciation key for the appropriate language. If a common English rendering of the non-English name exists (Venice, Nikita Khrushchev), its pronunciation, if necessary, should be indicated before the non-English one.
Illustration of stain repellancy . ... Stains on fabrics are classified into three types: water-based stains and oil-based stains or a mix of both. [2]
Most coatings have four basic components. These are the resin, solvent, pigment and additive systems [5] but the resin or binder is the key ingredient. Continuing environmental legislation in many countries along with geopolitics such as oil production are ensuring that chemists are increasingly turning to waterborne technology for paint/coatings and since resins or binders are the most ...