Abstract: A composition containing polytetrafluoroethylene and substantially free from a compound represented by Formula (3): (H—(CF2)8—SO3)qM2 wherein M2 is H, a metal atom, NR54 (where R5s may be the same as or different from each other and are each H or an organic group having 1 to 10 carbon atoms), an imidazolium optionally having a substituent, a pyridinium optionally having a substituent, or a phosphonium optionally having a substituent, and q is 1 or 2. Also disclosed is a molded boy including the composition.

Abstract: A power source device configured for an electrophoresis device employing a measurement tool including a capillary, the power source device including: a high voltage generation circuit configured to generate a voltage for electrophoresis; a first and a second external terminal configured to apply the electrophoresis voltage to the capillary; a polarity switching circuit including a first internal conductor connected to the high voltage generation circuit and a second internal conductor, the polarity switching circuit being configured to selectably apply a potential difference between the second and the first internal conductor across the first and the second external terminal by application with either a forward direction polarity or a reverse direction polarity; and a switching control circuit configured to control polarity switching of the polarity switching circuit to select either one of application with the forward direction polarity or application with the reverse direction polarity.

Abstract: A method of forming a trench isolation, comprising the steps of: applying a silicone resin composition comprising a silicone resin which is represented by the following rational formula (1) and is solid at 120° C.: (H2SiO)n(HSiO1.5)m(SiO2)k??(1) (wherein n, m and k are each a number, with the proviso that when n+m+k=1, n is 0 to 0.8, m is 0 to 1.0, and k is 0 to 0.2) and an organic solvent to a substrate having trenches in such a manner that the trenches of the substrate are filled with the silicone resin composition so as to form a coating film; and carrying out the step of bringing the coating film into contact with at least one selected from the group consisting of water, an alcohol and hydrogen peroxide and the step of subjecting the coating film to at least one treatment selected from the group consisting of a heat treatment and an optical treatment.

Abstract: The ionic strength of a diluent for preparing an analytical sample is set to be 0.06 to 0.16. The analytical sample prepared by using the diluent having the ionic strength within this range can be subjected to both for analyzing a first object in a test sample by electrode method and for analyzing a second object in the test sample by liquid chromatography method, and high-precision measurement can be attained. The analytical sample is especially useful for preparing a sample for measurement used both for measuring glucose concentration in a blood sample by enzyme electrode method and for measuring glycohemoglobin concentration in the blood sample by liquid chromatography method.

Abstract: Provided is a composition for forming a protective layer which has an excellent acid resistance, an excellent cracking resistance and does not adversely affect semiconductor layers even when acid is used to remove deposits that arise during formation of separation trenches for separating a substrate into device units. Also provided is a method for manufacturing an optical semiconductor device using such a composition. The composition for forming a protective layer includes a siloxane polymer and an organic solvent. The method for manufacturing an optical semiconductor device includes the steps of: forming a protective layer 4 by coating a surface of semiconductor layers 2 and 3 formed on a substrate 1 with a composition for forming a protective layer; forming separation trenches 6 by irradiating the protective layer 4 from above with a laser; and removing deposits that arise during formation of the separation trenches 6.

Abstract: A method of forming a trench isolation, comprising the steps of: applying a silicone resin composition comprising a silicone resin which is represented by the following rational formula (1) and is solid at 120° C.: (H2SiO)n(HSiO1.5)m(SiO2)k??(1) (wherein n, m and k are each a number, with the proviso that when n+m+k=1, n is 0 to 0.8, m is 0 to 1.0, and k is 0 to 0.2) and an organic solvent to a substrate having trenches in such a manner that the trenches of the substrate are filled with the silicone resin composition so as to form a coating film; and carrying out the step of bringing the coating film into contact with at least one selected from the group consisting of water, an alcohol and hydrogen peroxide and the step of subjecting the coating film to at least one treatment selected from the group consisting of a heat treatment and an optical treatment.