PerkinElmer

Scintillation Proximity Assay (SPA)

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Combine the sensitivity of radioactive assays with the convenience of a homogeneous (no wash steps) assay using SPA technology. Scintillation proximity assay (SPA) is a homogeneous and versatile technology for the rapid and sensitive assay of a wide range of biological processes, including use with enzyme targets and receptor targets, radioimmunoassays, and molecular interactions. The assay format requires no separation steps and is amenable to automation.

SPAs using either SPA scintillation beads or SPA imaging beads can be read on scintillation counters and CCD imagers, respectively. In addition, SPA reagents are suitable for the detection of a range of isotopes, including 3H, 125I, 33P, and 14C, when used as radiolabels.

For biochemical assays such as receptor binding or enzyme activity, a scintillation proximity assay offers a more convenient, cost-effective, and safer technology for a range of applications. Furthermore, our CytoStar-T® microplates are sterile, TC-treated, clear-bottomed, white-walled microplates optimized for cell-based scintillation proximity assays.

Products & Services (55)
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  • Drug Discovery & Development (44)
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1-25 of 55 Products & Services

  • PerkinElmer

    WGA PVT SPA 2G

    WGA-coated SPA beads, for capturing cell membranes in proximity-based radiometric scintillation assays.
    List Price : 4036.00 USD
  • PerkinElmer

    Glutathione PVT 750MG ADS

    Glutathione-coated SPA beads, for capturing GST-tagged proteins in proximity-based radiometric scintillation assays.
    List Price : 3536.00 USD
  • PerkinElmer

    Streptavidin YSI 250MG YTTRIUM

    Streptavidin-coated SPA beads, for capturing biotinylated biomolecules in proximity-based radiometric scintillation assays.
    List Price : 3146.00 USD
  • PerkinElmer

    PEI PS Imaging Beads 500 MG

    PEI-coated SPA beads, for use in scintillation proximity assays.
    List Price : 1996.00 USD
  • TRKX7100_IMG_1526

    Phosphodiesterase [3H] cGMP SPA Enzyme Assay

    cGMP radioimmunoassay kit using Scintillation Proximity Assay (SPA) beads
    List Price : 4156.00 USD
  • PerkinElmer

    Protein A PVT 500 MG

    Protein A-coated SPA beads, for capturing antibodies in proximity-based radiometric scintillation assays.
    List Price : 918.00 USD
  • PerkinElmer

    Streptavidin PVT 2G

    Streptavidin-coated SPA beads, for capturing biotinylated biomolecules in proximity-based radiometric scintillation assays.
    List Price : 12400.00 USD
  • PerkinElmer

    PDE YSI 500MG

    SPA (scintillation proximity assay) beads designed for the capture of [3H]AMP or [3H]GMP on specially prepared yttrium silicate beads.
    List Price : 951.00 USD
  • PerkinElmer

    WGA YSI 1G

    WGA-coated SPA beads, for capturing cell membranes in proximity-based radiometric scintillation assays.
    List Price : 3824.00 USD
  • Phosphodiesterase [3H] cAMP SPA Enzyme Assay

    cAMP radioimmunoassay kit using Scintillation Proximity Assay (SPA) beads
    List Price : 5100.00 USD
  • PerkinElmer

    Anti-rabbit PVT 500 MG

    Anti-rabbit-coated SPA beads, for capturing rabbit IgG antibodies in proximity-based radiometric scintillation assays.
    List Price : 919.00 USD
  • PerkinElmer

    Copper HIS-Tag YSI 125MG

    SPA (scintillation proximity assay) beads designed for the capture of His-tagged proteins and peptides.
    List Price : 939.00 USD
  • PerkinElmer

    Anti-mouse YSI 500 MG

    Anti-mouse-coated SPA beads, for capturing mouse IgG antibodies in proximity-based radiometric scintillation assays.
    List Price : 4594.00 USD
  • PerkinElmer

    Protein A YSI 500 MG

    Protein A-coated SPA beads, for capturing antibodies in proximity-based radiometric scintillation assays.
    List Price : 1003.00 USD
  • PerkinElmer

    Polylysine YSI 1G

    Poly-lysine-coated SPA beads, for use in proximity-based radiometric scintillation assays.
    List Price : 919.00 USD
  • PerkinElmer

    WGA PVT PEI TYPE B 500 MG

    WGA-coated SPA beads, for capturing cell membranes in proximity-based radiometric scintillation assays.
    List Price : 950.00 USD
  • PerkinElmer

    WGA PVT SPECIAL 25 X 500 MG

    Wheat germ agglutinin (WGA), PEI-coated SPA beads, for proximity-based radiometric scintillation assays. The treatment of PVT-WGA SPA beads with positively charged polyethyleneimine (PEI) blocks potential non-specific binding sites on the SPA bead surface.
    List Price : 17700.00 USD
  • PerkinElmer

    RNA Binding Beads (YSI) 500 MG

    Uncoated SPA beads that interact with primary phosphate groups in nucleotides (oligos, DNA and RNA); membranes can also bind.
    List Price : 984.00 USD
  • PerkinElmer

    Streptavidin PVT 500MG

    Streptavidin-coated SPA beads, for capturing biotinylated biomolecules in proximity-based radiometric scintillation assays.
    List Price : 3005.00 USD
  • PerkinElmer

    Streptavidin PS Imaging Beads 500 MG

    Streptavidin-coated SPA beads, for capturing biotinylated molecules in proximity-based scintillation assays.
    List Price : 1568.00 USD
  • CytoStar-T 96-well plates

    96-well clear-bottom, scintillating microplate for cell-based radiometric proximity assays.
    Price Range : 728.00 USD - 8700.00 USD
  • PerkinElmer

    Glutathione PVT 2G

    Glutathione-coated SPA beads, for capturing GST-tagged proteins in proximity-based radiometric scintillation assays.
    List Price : 8800.00 USD
  • PerkinElmer

    Streptavidin YOX Imaging Beads 50 MG

    Streptavidin-coated SPA beads, for capturing biotinylated molecules in proximity-based scintillation assays.
    List Price : 161.00 USD
  • PerkinElmer

    WGA-PEI TYPE A PS 500 MG

    WGA-coated SPA beads, for capturing cell membranes in proximity-based scintillation assays.
    List Price : 5500.00 USD
  • PerkinElmer

    WGA PS Imaging Beads 500 MG

    WGA-coated SPA beads, for capturing cell membranes in proximity-based scintillation assays.
    List Price : 494.00 USD
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