摘要:
An electrophotographic member comprising a resin binder and an organic photoconductive composition and a process using the electrophotographic member, the composition consisting essentially of a compound of the formula (A), its dimeric compound or its polymeric compound: ##SPC1##Whereim R.sub.1 is hydrogen atom, halogen atom, alkyl group having 1 to 4 carbon atoms, alkoxy group having 1 to 4 carbon atoms, alkoxycarbonyl group having alkyl group 1 to 4 carbon atoms, nitro group, alkylene group having 1 to 3 carbon atoms which is capable of forming a bis-compound, or a bond which is capable of forming a bis-compound, R.sub.2 is hydrogen atom, hydroxyl group, alkoxycarbonyl group having alkyl group of 1 to 4 carbon atoms, cyano or phenyl group, R is substituted phenyl group (where substituted group is hydrogen atom, halogen atom, alkyl group having 1 to 4 carbon atoms, or alkoxy group having 1 to 4 carbon atoms), alkylene group having 1 to 3 carbon atoms which is capable of forming a bis-compound, phenylene group which is capable of forming a bis-compound, or a bond which is capable of forming a bis-compound, and m is an integer from 1 to 4.
摘要:
A multilayer analytical element for measuring enzyme activity in a liquid sample such as a body fluid which is less affected by intrinsic pyruvic acid contained in the liquid sample is disclosed. The analytical element comprises a support, a reagent layer, an optionally provided other layer, and a porous spreading layer. The reagent layer and/or the optionally provided other layer contain pyruvic acid oxidase. The characteristic feature of the analytical element lies in that the spreading layer has a specific void volume in the range of 3-15 .mu.l/cm.sup.2.
摘要翻译:公开了一种用于测量液体样品中的酶活性的多层分析元件,所述液体样品例如体液中较少受到液体样品中所含的固有丙酮酸的影响。 分析元件包括载体,试剂层,任选提供的其它层和多孔扩散层。 试剂层和/或任选提供的其它层含有丙酮酸氧化酶。 分析元件的特征在于扩散层具有在3-15μml/ cm 2范围内的特定空隙体积。
摘要:
An integral multilayer element for chemical analysis utilizing an oxidase enzyme reaction system is prepared having in the following order:(a) a porous spreading layer;(b) an oxygen-permeable, protein-impermeable light-blocking layer;(c) an oxidase-containing layer;(d) an indicator layer containing peroxidase and a hydrogen peroxide indicator showing detectable change in the presence of peroxidase and hydrogen peroxide; and(e) a water-impermeable, light-transmissive support. The oxidase in the oxidase-containing layer is preferably glucose oxidase to provide a multilayer element for glucose determination. This multilayer element shortens the analytical time, widens the measurable concentration range of the analyte and improves accuracy.
摘要:
A dry-type analytical element suitable for measuring enzyme activity of in a liquid sample, characterized by incorporating a polyacrylamide, polymethacrylamide or their derivatives into at least one water-permeable layer. The background concentration of the dry-type analytical element exhibits minimal increase even under a fluorescent light, and allows an accurate measured value to be easily obtained.
摘要:
In a dry analytical element for the determination of creatine kinase enzymatic activity is disclosed, comprising at least one porous medium and at least one water permeable layer having a liquid contact relation with the porous medium, the porous medium or the water permeable layer contains creatine phosphoric acid, ADP, a thiol compound as a creatine kinase activation agent, glucose, hexokinase, G6PDH, NAD.sup.+, an electron transmission agent and a formazane dye forming tetrazolium salt, the improvement wherein at least one water permeable layer having a liquid contact relation with the porous medium contains a formazane dye forming tetrazolium salt and not more than 16 g/m.sup.2 of gelatin.
摘要:
An analytical element for quantitative analysis of analyte contained in a body fluid or the like, which has at least one reagent layer comprising a reactive reagent and a binder, characterized in that a portion or whole of the binder is a polycarboxylic acid carrying a nonionic surface active agent attached through ester linkage to at least a portion of the carboxyl groups contained therein.
摘要:
A novel imidazole derivative type reagent for analysis of hydrogen peroxide, a method of analysis of hydrogen peroxide using the same, a method of analysis of peroxidase using the same, and a multilayer chemicalanalytical element containing the same are disclosed.The imidazole derivative has the formula (I): ##STR1## wherein R.sup.1 and R.sup.2 represent an aryl group or a substituted aryl group, and R.sup.1 and R.sup.2 are identical with or different from each other, and R.sup.3 represents 2- or 3-pyrrolyl group, a substituted 2- or 3-pyrrolyl group, 2- or 3-indolyl group, or a substituted 2- or 3-indolyl group.
摘要:
In a dry-type multilayer liquid analysis material for glucose determination composed of a transparent water-impermeable support having formed thereon in sequence at least a reagent layer containing a reactive component forming a detectable material by the action of hydrogen peroxide, a non-porous light-shielding layer, and a porous spreading layer, the coloring efficiency for colorimetry using the liquid analysis material is improved by incorporating a glucose oxidase enzyme in at least one layer disposed above the reagent layer.
摘要:
An improved integral multilayer analytical element for the assay of total protein contained in liquid sample. The element comprises a transparent support on which a reagent layer and a spreading layer are superposed. The feature of the element exists in the reagent layer comprising potassium sodium tartarate, a cupric salt, a basic compound providing a pH in excess of about 12.0 in the element under conditions of use thereof, an alkali-proof polymer and an alkali metal ion complexing agent.
摘要:
2,6-Di-tert-butyl-4-methyl thiopyrylium salt of the formula (I): ##STR1## wherein Z.sup..crclbar. is an anionic function and certain intermediates encountered in its synthesis.