SOLID PHASE EXTRACTION OF OCHRATOXINS
    1.
    发明申请
    SOLID PHASE EXTRACTION OF OCHRATOXINS 审中-公开
    OCHRATOXINS的固相萃取

    公开(公告)号:US20100151583A1

    公开(公告)日:2010-06-17

    申请号:US12596542

    申请日:2008-04-17

    摘要: Polymers capable of binding ochratoxins are disclosed. The polymers may be used for solid phase extraction of ochratoxins and immobilisation of ochratoxins in solid phase extraction (SPE) cartridges, for qualitative or quantitative analysis of ochratoxins in liquid extracts from foodstuffs or animal feeds. The polymers may be prepared from monomers containing amido or amino-alkyl moieties and acid moieties. Preferred embodiments are polymers prepared from 2-acrylamido-2-methylpropane-sulfonic acid (AMPSA) and from a mixture of diethyl aminoethyl methacrylate (DEAEM) and itaconic acid (IA). The polymers are preferably cross-linked, for example using ethylene glycol dimethacrylate (EGDMA) or divinyl benzene (DVB), and made macroporous by polymerisation in the presence of a porogen solvent such as dimethyl formamide (DMF).

    摘要翻译: 公开了能够结合赭曲霉毒素的聚合物。 聚合物可用于赭曲霉毒素的固相萃取和固相萃取(SPE)柱中赭曲霉毒素的固定,用于定量或定量分析来自食品或动物饲料的液体提取物中的赭曲霉毒素。 聚合物可以由含有酰氨基或氨基 - 烷基部分和酸部分的单体制备。 优选的实施方案是由2-丙烯酰氨基-2-甲基丙烷 - 磺酸(AMPSA)和二乙基氨基乙基甲基丙烯酸酯(DEAEM)和衣康酸(IA)的混合物制备的聚合物。 聚合物优选是交联的,例如使用乙二醇二甲基丙烯酸酯(EGDMA)或二乙烯基苯(DVB)),并通过在诸如二甲基甲酰胺(DMF)的致孔剂溶剂存在下进行聚合而制成大孔。

    FLUORESCENT POLYMERS AND METHODS FOR SOLID-PHASE EXTRACTION
    2.
    发明申请
    FLUORESCENT POLYMERS AND METHODS FOR SOLID-PHASE EXTRACTION 审中-公开
    荧光聚合物和固相萃取方法

    公开(公告)号:US20120171780A1

    公开(公告)日:2012-07-05

    申请号:US13382646

    申请日:2010-06-30

    IPC分类号: G01N21/64

    摘要: The apparatus of the present invention comprises a fluorescent polymer contained within a solid-phase extraction (SPE) carrier. The fluorescent polymer is capable of adsorbing an analyte by means of functional monomers. In use of the apparatus, a sample, such as a foodstuff sample, is applied to the fluorescent polymer. If the sample comprises the analyte, adsorption of the analyte onto the fluorescent polymer causes quenching of the fluorescence of the fluorescent polymer. Fluorescence quenching can be detected using a fluorometer or transillumination system. The method can be used to determine whether mycotoxins are present in foodstuff samples.

    摘要翻译: 本发明的装置包含在固相萃取(SPE)载体中的荧光聚合物。 荧光聚合物能够通过官能单体吸附分析物。 在使用该装置时,将诸如食品样品的样品施加到荧光聚合物上。 如果样品包含分析物,则将分析物吸附到荧光聚合物上导致荧光聚合物的荧光猝灭。 可以使用荧光计或透照系统检测荧光淬灭。 该方法可用于确定霉菌毒素是否存在于食品样品中。

    SOLID PHASE EXTRACTION OF ALFATOXINS
    3.
    发明申请
    SOLID PHASE EXTRACTION OF ALFATOXINS 审中-公开
    固相萃取阿魏酸

    公开(公告)号:US20100167409A1

    公开(公告)日:2010-07-01

    申请号:US12523627

    申请日:2008-02-08

    摘要: Polymers suitable for binding aflatoxins for use for in solid phase extraction of aflatoxins and immobilisation of aflatoxins in solid phase extraction (SPE) cartridges for qualitative or quantitative analysis of aflatoxins in solutions extracted from foodstuffs or feedstuffs are prepared from allylamine; methylene bisacrylamide (MBAA); acrylamide, ethyleneglycol-methacrylate phosphate (EGMP); 4-vinyl pyridine; or 2-acrylamido-2-methylpropane-sulfonic acid (AMPSA) monomers. Preferred embodiments are polymers containing acrylamide moieties such as acrylamide and MBAA. The polymers are preferably cross-linked, for example using ethylene glycol dimethacrylate (EGDMA) or divinyl benzene (DVB), and macroporous.

    摘要翻译: 适用于结合黄曲霉毒素的聚合物用于黄曲霉毒素的固相萃取和黄曲霉毒素固相萃取固相萃取(SPE),用于定量或定量分析从食品或饲料中提取的溶液中的黄曲霉毒素。 亚甲基双丙烯酰胺(MBAA); 丙烯酰胺,乙二醇 - 甲基丙烯酸酯磷酸酯(EGMP); 4-乙烯基吡啶; 或2-丙烯酰胺基-2-甲基丙烷 - 磺酸(AMPSA)单体。 优选的实施方案是含有丙烯酰胺部分如丙烯酰胺和MBAA的聚合物。 聚合物优选是交联的,例如使用乙二醇二甲基丙烯酸酯(EGDMA)或二乙烯基苯(DVB)和大孔。

    Porous molecularly imprinted polymer membranes
    5.
    发明申请
    Porous molecularly imprinted polymer membranes 审中-公开
    多孔分子印迹聚合物膜

    公开(公告)号:US20060102556A1

    公开(公告)日:2006-05-18

    申请号:US10521199

    申请日:2003-07-11

    IPC分类号: B01D71/28

    摘要: Highly porous substance-selective polymeric membranes are produced by co-polymerisation of functional monomers and cross-linker in the presence of template, plasticiser (non-extractable component), and pore-forming component (extractable component). Extraction of the template and porogen molecules leads to the formation of small ( 500 nm) pores, including small pores having a shape and arrangement of functional groups complementary to the template molecule. The membranes possess enhanced affinity towards the template and its analogues and also have high flexibility and porosity. Such membranes can be used in analytical chemistry (as sensor elements and for solid-phase extraction materials) for applications in pharmacology, medicine, the food industry, water purification and environmental clean up.

    摘要翻译: 通过在模板,增塑剂(不可萃取组分)和成孔组分(可萃取组分)存在下,通过官能单体和交联剂的共聚合来制备高度多孔的物质选择性聚合物膜。 模板和致孔剂分子的提取导致小(<100nm)和大(> 500nm)孔的形成,包括具有与模板分子互补的官能团的形状和排列的小孔。 膜对模板及其类似物具有增强的亲和性,并且还具有高柔性和孔隙率。 这种膜可用于分析化学(作为传感器元件和固相萃取材料),用于药理学,医学,食品工业,水净化和环境清洁。

    REACTIVE POLYMERS FOR SOLID-PHASE EXTRACTION
    6.
    发明申请
    REACTIVE POLYMERS FOR SOLID-PHASE EXTRACTION 审中-公开
    用于固相萃取的反应性聚合物

    公开(公告)号:US20120270335A1

    公开(公告)日:2012-10-25

    申请号:US13391706

    申请日:2010-08-26

    IPC分类号: G01N21/64

    摘要: Apparatus, methods and polymers for solid phase extraction by binding an analyte containing a primary amino group. The polymer is a reactive polymer, wherein binding of the analyte to the polymer causes fluorescent isoindole complex formation. A method of binding comprises use of an SPE carrier, such as an SPE cartridge, loaded with a reactive polymer. Binding of an analyte is detected by observing changes in fluorescence after applying the analyte to the polymer. Fluorescence can be detected using a fluorometer or transilluminator, for example. In a preferred embodiment, the reactive polymer is prepared from a monomer mixture comprising acetonitrile and triethylamine.

    摘要翻译: 通过结合含有伯氨基的分析物进行固相萃取的装置,方法和聚合物。 聚合物是反应性聚合物,其中分析物与聚合物的结合导致荧光异吲哚络合物形成。 一种结合的方法包括使用装载有反应性聚合物的SPE载体,例如SPE柱。 通过在将分析物施加到聚合物之后观察荧光的变化来检测分析物的结合。 例如,可以使用荧光计或透照器来检测荧光。 在优选的实施方案中,反应性聚合物由包含乙腈和三乙胺的单体混合物制备。