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原装现货|(牛) Pre-Diluted Protein Assay Stan dards: Bovine Serum Albumin|预稀释蛋白定量用BSA标准品

产品编号: 23208     查看说明书
产品名称: 原装现货|(牛) Pre-Diluted Protein Assay Stan dards: Bovine Serum Albumin|预稀释蛋白定量用BSA标准品  .0   订购此产品 
供应商: Pierce
规格: KIT
目录价: 1496
库存状态: 现货
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Bovine Serum Albumin (BSA) Standards   
Precise 2mg/mL stock solutions and exact dilution series of BSA protein quantitation standards for total protein assays.
Thermo Scientific Pierce BSA Protein Assay Standards are high-quality reference samples for generating accurate standard curves and calibration controls in total protein assays.
These bovine serum albumin (BSA) solutions are protein concentration reference standards for use in BCA, Bradford and other protein assay protocols. BSA is the universally accepted reference protein for total protein quantitation. The albumin standard is precisely formulated at 2mg/mL in an ultrapure 0.9% sodium chloride (saline) solution. The concentration of the stock solution is calibrated by direct comparison to purified BSA (Fraction V) from the National Institute of Standards and Technology (NIST). The product is available in three convenient package formats: 1mL glass ampules, 50mL polypropylene bottles, and complete sets containing seven ready-to-use dilutions.
Highlights:
Universal – recognized as the industry standard for protein quantitation in colorimetric protein assays
Pure and stable – supplied in ultrapure 0.9% saline solution with 0.05% sodium azide; room temperature stable
Accurate and consistent – precisely formulated at 2.00 +/-0.03mg/mL compared to an NIST reference
Convenient – choose 1mL ampules, a 50mL bottle, or a complete set containing seven ready-to-use dilutions
Applications for the Albumin Standard:
Protein assay quantitation standard (BCA Protein Assay, Coomassie-Bradford Assay, etc.)
Protein recovery control for desalting and other column procedures
Loading control for SDS-PAGE
General calibration of spectrophotometer UV-lamp (absorbance at 280nm)
About Protein Assay Standards:
Selection of a protein standard is potentially the greatest source of error in any protein assay. The best choice for a standard is a purified, known concentration of the most abundant protein contained in the samples being tested. Often, a highly purified, known concentration of the protein of interest is not available or it is too expensive to use as the standard, or the sample itself is a mixture of many proteins (e.g., cell lysate). In such cases, the best standard is one that will produce a normal (i.e., average) color response curve with the selected protein assay method and is readily available to any researcher. BSA is such a protein, and the Pierce Albumin Standards are the most convenient source of ready-to-use BSA standard.
For greatest accuracy in estimating total protein concentration in unknown samples, it is essential to include a standard curve each time the assay is performed. This is particularly true for the protein assay methods that produce non-linear standard curves. Deciding on the number of standards and replicates used to define the standard curve depends upon the degree of non-linearity in the standard curve and the degree of accuracy required. In general, fewer points are needed to construct a standard curve if the color response is linear. Typically, standard curves are constructed using at least two replicates for each point on the curve.

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