Abstract: A method for detecting a target nucleic acid in a sample, which method comprises: (a) providing a primer air comprising a first primer having a target specific sequence complementary to the sequence of the first strand of said target nucleic acid and an overhang sequence unrelated to said target nucleic acid sequence and a second primer having a target specific sequence complementary to the sequence of the second strand of said target nucleic acid and an attachment means; (b) contacting a nucleic acid sample with said first and second primers; (c) carrying out a polymerase chain reaction (PCR) under conditions suitable for the formation of a product having said attachment means and a sequence comprising the sequence of said target nucleic acid and the sequence of said overhang; (j) separating the first strand of said product comprising said first primer from the second strand of said product comprising said second primer using said attachment means; and (k) detecting said first strand or said second strand th

Abstract: The objective of the present invention is a method for determining two or more radioactively labeled ligands simultaneously in the same sample. According to the invention the ligands are determined with proximity assay so that for determining said ligands support materials with different scintillation characteristics are employed, each said support material having attached onto it molecules specifically binding one of said ligands. The support material consists totally or partially of scintillator.

Abstract: An articulated arm is described which comprises an articulated product tube permittedly connected in use to a fixed product conduit. A product tube support is connected to and pivotal about substantially the same axes of the product tube and one or more counterweights is mounted on and movable with the product tube support so as to balance the weight of the product tube and the support. In order to allow for thermal expansion of the product tube, the product tube support member is connected adjacent its outboard end to the product tube by connection which allows for relative movement between the support and the tube. The tube may be connected to a plate slidably received in a recess in a member mounted on the product tube support.