Abstract: A pipe fusion machine including a track mounted chassis supporting a horizontal turntable for unlimited, reversible rotation relative to the chassis. A boom pivotally attached at a rear end of, and extending forwardly of, the turntable enables manipulation of elevations and distances of the free end of the boom. The free end of the boom is adapted to permit pivotal mounting thereon of a pipe fusion tool such as an indexer configured to articulate and support a pipe-end facer and a pipe-end heater for respective independent orientation into and out of alignment with the ends of pipes to be fused. A carriage supports fixed and sliding jaws adapted to grip the ends of pipes to be fused for relative reciprocal movement during a pipe fusion process. Each of the jaws may include an upper half jaw and lower left and right quarter jaws.

Abstract: A strong anion exchange composition useful in monophosphate nucleotide isomer separations is comprised of an inert porous particle having a silyl alkyl ammonium compound fixedly attached by a covalent silicon-oxygen-silicon bond to the surface thereof. A process for synthesizing the strong anion exchange composition in an aqueous solvent is disclosed together with methods for separation of monophosphate nucleotide isomers, highly phophorylated nucleotides and aldopentose carbohydrates using a column packed with this strong anion exchange composition.

Abstract: A fluorescent composition useful in thin-layer chromatography comprises an inert porous particle having a fluorescent material fixedly attached by covalent chemical bonding to the surface thereof. A process for synthesizing this fluorescent composition is disclosed. A method for detecting the radioactivity of a radioactive species using a cell packed with such a fluorescent composition is also disclosed.

Abstract: A method for fluorescence enhancement of dansyl derivatives of active hydrogen compounds which are easily separated in a liquid chromatography column using a polar solvent system but whose fluorescence efficiency is diminished in such polar solvents, by changing the environment of the dansyl derivative without changing the solvent.

Abstract: A weak anion exchange composition useful in polyfunctional compound chromatographic separations comprises an inert porous particle having a tetra-substituted silane material fixedly attached by covalent bonding to the surface thereof. A process for synthesizing the weak anion exchange composition is disclosed together with methods for separation of polyfunctional compounds and their isomers using a column packed with such weak anion exchange composition.

Abstract: A strong anion exchange composition useful in monophosphate nucleotide isomer separations is comprised of an inert porous particle having a silyl alkyl ammonium compound fixedly attached by a covalent silicon-oxygen-silicon bond to the surface thereof. A process for synthesizing the strong anion exchange composition in an aqueous solvent is disclosed together with methods for separation of monophosphate nucleotide isomers, highly phosphorylated nucleotides and aldopentose carbohydrates using a column packed with this strong anion exchange composition.

Abstract: The mixed phase packing material of this invention, enables rapid separation of multi-sited biopolymers. This separation is achieved by "tailoring" the distance between organo-silyl groups covalently bonded to the rigid support at the Angstrom distance needed for reversible separation of the biopolymers of interest and "capping" other sterically available active sites on the support with a relatively inert compound.

Abstract: A weak anion exchange composition useful in polyfunctional compound chromatographic separations comprises an inert porous particle having a tetra-substituted silane material fixedly attached by covalent bonding to the surface thereof. A process for synthesizing the weak anion exchange composition is disclosed together with methods for separation of polyfunctional compounds and their isomers using a column packed with such weak anion exchange composition.

Abstract: A fluorescent composition useful in thin-layer chromatography comprises an inert porous particle having a fluorescent material fixedly attached by covalent chemical bonding to the surface thereof. A process for synthesizing this fluorescent composition is disclosed. A method for detecting the radioactivity of a radioactive species using a cell packed with such a fluorescent composition is also disclosed.