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What is o-phthaldehyde?
O-phthaldehyde (OPA) is a small fluorscent molecule that reacts with primary amines, predominantly lysines and N-termins amines, in aqueas solutions at room temperature. It is used to determine the total concentration of protein in a sample. OPA can be used within a concentration of 1µg/ml - 1 mg/ml. Because it will react with N-terminus amines, it is a good choice for assays of small peptides that may not have enough amino acids to be detected by Bradford, BCA or Lowry protein assays.
What is the difference between a qualitative and a quantitative assay?
In assays, or medical tests, both qualitative and quantitative tests occur. The qualitative test identifies the presence or absence of the pathogen or toxin (or other molecule) being tested for, while the quantitative test hopes to measure how much of that particular substance is in the body.
How many sums equal 76?
Infinitely many. Infinitely many. Infinitely many. Infinitely many.
How much chords can there be in a circle?
Infinitely many. Infinitely many. Infinitely many. Infinitely many.
How many hours is how many hours is how many hours is 4130 miles flying?
so many hours
What are four different ways scientists get information about the history of species?
1. Comparative genomics assays. 2. Comparative morphology assays. 3. Combining comparative genomics and morphology assays. 4. ...?
In what field of work involves the use of assays?
Assays is a procedure to analyze or quantify a substance in a sample to determine the presence and amount, as well as the potency. The fields that involve the use of assays are environmental biology, laboratory medicine, pharmacology, and molecular biology.
What has the author Mario Serio written?
Mario Serio has written: 'Luminescent Assays'
What are the advantage of radioimmunoassay?
higher sensitivity, easy signal detection, and well-established, rapid assays
What was luminol originally used for?
used by biologists in cellular assays for the detection of copper, iron, and cyanide.
What are the benefits of using the TaqMan Gene Expression Assays?
TaqMan Gene Expression Assays consist of a pair of unlabeled PCR primers and a TaqMan probe with a FAM or VIC dye label on the 5' end, and minor groove binder (MGB) nonfluorescent quencher (NFQ) on the 3' end.
What are the type of biochemical assays in HTS?
Check out Inglese et al., Nature (3) 8. August 2007.
What has the author Janette Mary Sullivan written?
Janette Mary Sullivan has written: 'Peptide derivatives for proteinase assays'
Why are particular wavelengths used for particular spectrophotometric assays?
A particular wavelength used for particular spectrophotometric assays is based upon the absorbance pecularity of the substance in consideration/used for the assay. That particular substance absorbs at a particular wavelength leaving other things alleviating the chances of background contamination/noise.
What has the author Philippe Collas written?
Philippe Collas has written: 'Chromatin immunoprecipitation assays' -- subject(s): Chromatin, Laboratory manuals
Why we are used sodium bicarbonate for the estimation of protein?
Sodium bicarbonate is not necessarily used in the estimation of protein. There are very many protein assays on the market, and the vast majority of them do NOT use NaHCO3. Look up Lowry, Biuret, Bradford, etc.
What services are offered at bulk lot?
The kind of services that Bulk Lot offers is primarily to ensure the quality and purity of the unprocessed bulk materials. Many of the services include: Sterility Testing, Mycoplasma Detection Assays, Residual DNA, Virology Testing, Bioburden, and many more.
