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    • 2. 发明申请
    • ABSORBENT HYDROGEL COMPOSITES
    • 吸收水凝胶复合材料
    • WO2007113453A1
    • 2007-10-11
    • PCT/GB2006/001218
    • 2006-04-03
    • FIRST WATER LIMITEDMUNRO, Hugh, SempleANDREWS, PhilipSAINA GARCIA, Susana
    • MUNRO, Hugh, SempleANDREWS, PhilipSAINA GARCIA, Susana
    • A61L15/60A61L15/26A61L15/42
    • A61L15/26A61L15/42A61L15/60
    • The invention provides an absorbent material or article comprising an absorbent hydrogel composite sheet. The sheet includes an absorbent layer part having two major faces which comprises a flexible plasticised hydrophilic polymer matrix having an internal cellular structure, and a second part which comprises a flexible plasticised hydrophilic polymer matrix having a relatively continuous internal structure. The second part may be associated with the layer part such that the second part infiltrates some but not all of the cellular voids of the absorbent layer part over a major face of the absorbent layer part. Alternatively, the second part may be associated with the layer part such that the second part overlies a major face of the absorbent layer part. By this arrangement, some but not all of the absorbent layer part is effectively exposed for absorption of external water or other fluid through the side of the sheet corresponding to that said major face of the absorbent layer.
    • 本发明提供了一种包含吸收性水凝胶复合片材的吸收材料或制品。 片材包括具有两个主表面的吸收层部分,其包含具有内部细胞结构的柔性增塑的亲水性聚合物基质,和包含具有相对连续的内部结构的柔性增塑的亲水性聚合物基质的第二部分。 第二部分可以与层部分相关联,使得第二部分在吸收层部分的主表面上渗透吸收层部分的一些但不是全部的细胞空隙。 或者,第二部分可以与层部分相关联,使得第二部分覆盖在吸收层部分的主表面上。 通过这种布置,一些但不是全部的吸收层部分被有效地暴露以吸收外部水或其它流体通过与吸收层的所述主面对应的片材的侧面。
    • 3. 发明申请
    • TEST SYSTEM
    • 测试系统
    • WO2004090156A2
    • 2004-10-21
    • PCT/GB2004/001578
    • 2004-04-08
    • CROWN VISION SYSTEMS LIMITEDLEHARNE, StevenNAGLER, MartinNEAL, GordonEZZI, MufaddalCOKER, RaymondBELL, EdwardROTHER, JoachimPHILLIPS, PamelaDAVIES, LynANDREOU, MichaelSOARED, Fernando
    • LEHARNE, StevenNAGLER, MartinNEAL, GordonEZZI, MufaddalCOKER, RaymondBELL, EdwardROTHER, JoachimPHILLIPS, PamelaDAVIES, LynANDREOU, MichaelSOARED, Fernando
    • C12Q1/00
    • C12Q1/025
    • An assay is provided for assaying a sample of soil, sand, sediment or other particulate material for the presence of contaminants such as polycyclic aromatic hydrocarbons (PAHs), organic pesticides, petroleum hydrocarbons, or polychlorinated biphenyls (PCBs), and preferably comprises: extracting an assayable amount of the contaminant from the particulate material into a water-miscible solvent, such as an organic alcohol, capable of dissolving the contaminant, the solvent optionally containing a surfactant; mixing the resultant solvent solution of the contaminant with water and optionally a surfactant, for example to a dilution factor between about 10 and about 25, whereby a mixture is obtained containing water, solvent, surfactant and any extracted contaminant; and exposing the bioluminescent organism Vibrio fischeri to the mixture under conditions in which the inhibition, by the contaminant, of light emitted by the organism can be related to the presence of the contaminant in the mixture. The method is sufficiently quantitative that it can be determined whether the contaminant is present in the particulate material at a concentration above or below a certain - e.g. a legally specified - level. A test kit is provided, whereby the method can be performed in the field and the result showing whether the contaminant is present at a legally acceptable or unacceptable level can be displayed.
    • 提供了一种用于测定土壤,沙子,沉积物或其他颗粒材料样品中存在污染物如多环芳烃(PAHs),有机农药,石油烃或多氯联苯(PCBs)的测定法,优选包括:提取 污染物从颗粒物质分解成能够溶解污染物的水混溶性溶剂如有机醇,任选地含有表面活性剂的溶剂; 将所得到的污染物溶剂与水和任选的表面活性剂混合,例如稀释因子为约10至约25,由此得到含有水,溶剂,表面活性剂和任何提取的污染物的混合物; 以及在生物体发射的光的抑制可能与混合物中污染物的存在有关的条件下,将生物发光生物体弧菌暴露于混合物中。 该方法是足够定量的,可以确定污染物是否以高于或低于某一特定浓度的浓度存在于颗粒材料中。 一个法定指定级别。 提供了一种测试工具,由此可以在现场进行该方法,并且可以显示显示污染物是否以法律上可接受或不可接受的水平存在的结果。