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P3563

Sigma-Aldrich

Phosphate Buffered Saline

powder, pH 7.4, with 0.05% Tween® 20

Synonym(s):

1X PBS + 0.05% TWEEN® 20, 1X PBS + 0.05% TWEEN® 20, PBS-T, PBST

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About This Item

UNSPSC Code:
41105319
eCl@ss:
32129211
NACRES:
NA.25

product name

Phosphate Buffered Saline with 0.05% TWEEN® 20, pH 7.4,

form

powder

solubility

water: soluble, clear, colorless (1 pouch dissolved in 1L)

application(s)

cell analysis
diagnostic assay manufacturing

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General description

Phosphate Buffered Saline with Tween®-20, or PBST, is primarily used in immunoassays as a washing and blocking buffer. The phosphate buffer maintains a stable pH 7.4, suitable for many biological reactions and assays. The salt or saline solution in PBS-T provides the necessary ionic strength for optimal protein solubility and stability. The addition of 0.05% TWEEN®-20, a non-ionic detergent, helps reduce background signals by blocking non-specific binding sites on proteins. PBST buffer enhances the washing efficiency by removing unwanted substances and limits non-specific antibody binding sites, while preserving the integrity of the target proteins.

Application

Phosphate buffered saline has been used in:

  • western blotting
  • enzyme-linked immunosorbent assay (ELISA)
  • telomere-FISH (Tel-FISH) and telomere/immunostaining-FISH (Teli-Fish)
  • cell isolation

Packaging

Foil pouches

Reconstitution

Contents of one pouch dissolved in 1 L dH2O or ultrapure water to yield 0.01 M phosphate buffered saline, 0.138M NaCl, 0.0027M KCl, and 0.05% Tween 20, pH7.4.

Other Notes

For additional information on our range of Biochemicals, please complete this form.

Legal Information

TWEEN is a registered trademark of Croda International PLC

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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Kossi Komlan et al.
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Shorter telomeres in luminal B, HER-2 and triple-negative breast cancer subtypes
Heaphy C M, et al.
Modern Pathology, 24(2), 194-194 (2011)
The alternative lengthening of telomeres phenotype in breast carcinoma is associated with HER-2 overexpression
Subhawong A P, et al.
Modern Pathology, 22(11), 1423-1423 (2009)
Telomere length assessment in human archival tissues: combined telomere fluorescence in situ hybridization and immunostaining
Meeker A K, et al.
The American Journal of Pathology, 160(4), 1259-1268 (2002)
Expression of the galectin-9-Tim-3 pathway in glioma tissues is associated with the clinical manifestations of glioma
Liu Z, et al.
Oncology Letters, 11(3), 1829-1834 (2016)
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