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, scintillation proximity assay offers a more convenient, cost-effective, and safer technology for a range of applications.

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  • HIS (2)
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1-25 of 63 Products & Services

  • PerkinElmer

    Streptavidin YSI 250MG YTTRIUM

    Streptavidin-coated SPA beads, for capturing biotinylated biomolecules in proximity-based radiometric scintillation assays.
    List Price : 2997.00 USD
  • PerkinElmer

    Protein A YSI 500 MG

    Protein A-coated SPA beads, for capturing antibodies in proximity-based radiometric scintillation assays.
    List Price : 890.00 USD
  • PerkinElmer

    WGA PVT SPA 100 MG

    WGA-coated SPA beads, for capturing cell membranes in proximity-based radiometric scintillation assays.
    List Price : 201.00 USD
  • PerkinElmer

    Streptavidin PVT 50MG

    Streptavidin-coated SPA beads, for capturing biotinylated biomolecules in proximity-based radiometric scintillation assays.
    List Price : 308.00 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 : 875.00 USD
  • PerkinElmer

    WGA PS Imaging Beads 50 MG

    WGA-coated SPA beads, for capturing cell membranes in proximity-based scintillation assays.
    List Price : 58.00 USD
  • PerkinElmer

    Streptavidin PVT 500MG

    Streptavidin-coated SPA beads, for capturing biotinylated biomolecules in proximity-based radiometric scintillation assays.
    List Price : 2861.00 USD
  • PerkinElmer

    Anti-mouse PVT 500 MG

    Anti-mouse-coated SPA beads, for capturing mouse IgG antibodies in proximity-based radiometric scintillation assays.
    List Price : 875.00 USD
  • PerkinElmer

    Quan-T-RT™ [3H] - Reverse Transcriptase

    Quan-T-RT™ contains the following components: Annealed primer/template bound to streptavidin-coated SPA beads, assay buffer, stop solution, [3H]TTP (3.7 MBq, 100 µCi) and instructions for use.
    List Price : 1152.00 USD
  • PerkinElmer

    WGA-PEI TYPE A PS 500 MG

    WGA-coated SPA beads, for capturing cell membranes in proximity-based scintillation assays.
    List Price : 675.00 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 : 906.00 USD
  • PerkinElmer

    Glutathione YSI 50MG

    Glutathione-coated SPA beads, for capturing GST-tagged proteins in proximity-based radiometric scintillation assays.
    List Price : 907.00 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 : 905.00 USD
  • PerkinElmer

    Streptavidin PVT 25 X 2G

    Streptavidin-coated SPA beads, for capturing biotinylated biomolecules in proximity-based radiometric scintillation assays.
    List Price : 61300.00 USD
  • PerkinElmer

    Anti-rabbit YSI 500 MG

    Anti-rabbit-coated SPA beads, for capturing rabbit IgG antibodies in proximity-based radiometric scintillation assays.
    List Price : 911.00 USD
  • PerkinElmer

    WGA PVT PEI TYPE A 500 MG

    WGA-coated SPA beads, for capturing cell membranes in proximity-based radiometric scintillation assays.
    List Price : 875.00 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 : 16900.00 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 : 932.00 USD
  • CytoStar-T 384-well plates, 50 plates

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

    Protein A PVT 500 MG

    Protein A-coated SPA beads, for capturing antibodies in proximity-based radiometric scintillation assays.
    List Price : 875.00 USD
  • PerkinElmer

    Streptavidin PVT 2G

    Streptavidin-coated SPA beads, for capturing biotinylated biomolecules in proximity-based radiometric scintillation assays.
    List Price : 11800.00 USD
  • PerkinElmer

    Streptavidin YOX Imaging Beads 50 MG

    Streptavidin-coated SPA beads, for capturing biotinylated molecules in proximity-based scintillation assays.
    List Price : 99.00 USD
  • Phosphodiesterase [3H] cAMP SPA Enzyme Assay

    cAMP radioimmunoassay kit using Scintillation Proximity Assay (SPA) beads
    List Price : 3958.00 USD
  • PerkinElmer

    Select-a-Bead Kit 5 X 100 MG

    SPA bead selection kit for receptor binding studies (contains 100 mg of WGA PVT, WGA Ysi, WGA PEI type A, WGA PEI type B, and Poly-L-lysine beads)
    List Price : 895.00 USD
  • PerkinElmer

    HIS-Tag Beads YOX 500 MG

    SPA beads for capturing His-tagged proteins and peptides.
    List Price : 2666.00 USD
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