Abstract: The invention concerns the use of an asymmetric porous membrane for the evenly distributed concentration of a substance which is not or not substantially adsorbed to the membrane and which is brought into contact with the membrane in the form of a membrane-wetting solution on the fine-pored side of the membrane.

Abstract: The subject matter of the application is a method for the separation of non-HDL lipoproteins from biological fluids in a carrier through which liquids can flow. The carrier contains a precipitating agent for non-high density lipoproteins (non-HDLs).

Abstract: An apparatus comprising a first porous carrier and a second porous carrier for evaluating biological fluid samples is disclosed. The apparatus is used for separating non high density lipoprotein (non-HDL) from a lipoprotein in a body sample and for determining high density lipoprotein (HDL) cholesterol in a HDL and non high density lipoprotein (non-HDL) in a body sample.

Abstract: The invention concerns the use of redox-active compounds for the production of detection reagents for a method for the determination of an analyte as well as reagent kits that contain these redox-active compounds. In addition new redox-active compounds are disclosed.

Abstract: The present invention concerns a diagnostic test carrier for the determination of an analyte from whole blood with the aid of a reagent system contained in the carrier which includes a colour forming reagent with a test field which has a sample application side onto which the blood sample is applied and a detection side on which an optically detectable change takes place as a result of the reaction of analyte with the reagent system and which is constructed in such a way that erythrocytes present in the sample do not reach the detection side, which is characterized in that the test field comprises a transparent foil onto which a first and a second film layer are applied on top of one another and wherein the first layer located on the transparent foil scatters light considerably less in a wet state than the overlying second layer and wherein the side of the foil on which the first layer is applied which is opposite to the foil side is the detection side and the side of the second layer which is opposite to the

Abstract: The invention relates to a method useful in separating non-high density lipoproteins, referred to as "non-HDLs", from biological fluids containing them. A porous carrier is provided which contains a non-HDL precipitating agent. One need only contact the sample of interest to the carrier for one minute or less, after which the precipitated non-HDL-s are no longer present in the sample being tested. The applications of the method include the ability to determine high density lipoproteins in the sample without interference from non-HDLs.

Abstract: The invention relates to a method useful in separating non-high density lipoproteins, referred to as "non-HDLs", from biological fluids containing them. A porous carrier is provided which contains a non-HDL precipitating agent. One need only contact the sample of interest to the carrier for one minute or less, after which the precipitated non-HDLs are no longer present in the sample being tested. The applications of the method include the ability to determine high density lipoproteins in the sample without interference from non-HDLs.

Abstract: The invention relates to an apparatus and a method useful in separating non-high density lipoproteins, referred to as "non-HDLs", from biological fluids containing them. A porous carrier is provided which contains a non-HDL precipitating agent. One need only contact the sample of interest to the carrier for one minute or less, after which the precipitated non-HDLs are no longer present in the sample being tested. The applications of the method include the ability to determine high density lipoproteins in the sample without interference from non-HDLs.

Abstract: New 1-naphtholphthalein monophosphates of the formula ##STR1## wherein each of R.sup.1 and R.sup.2 is hydrogen or halogen, and each of M.sup.1 and M.sup.2 is a proton or an alkali metal, alkaline earth metal, ammonium, dicyclohexylammonium, tetraalkylammonium or alkanolammonium cation, and the tautomeric transformation products thereof, are useful as substrates for detection and photometric determination of alkaline phosphotase.

Abstract: The present invention provides imidazole derivatives of the general formula: ##STR1## wherein R, R.sub.1 and R.sub.2 are defined hereinbelow. The present invention is also concerned with processes for the preparation of these imidazole derivatives and with the use thereof as redox indicators.

Abstract: Certain novel nitrofuran compounds of the formula: ##SPC1##WhereinHet is an aromatic heterocylic linkage;B is a bond or vinylene;Y is O or S;m is 0 or 1;X is hydrogen, lower alkyl or alkanoyl; andThe R's are variously defined;Are outstandingly effective bacteriostats and bactericides.

Abstract: An apparatus comprising a first porous carrier and a second porous carrier for evaluating biological fluid samples is disclosed. The apparatus is used for separating non high density lipoprotein (non-HDL) from a lipoprotein in a body sample and for determining high density lipoprotein (HDL) cholesterol in a HDL and non high density lipoprotein (non-HDL) in a body sample.