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    • 4. 发明申请
    • Method For Qualitative And/Or Quantitative Detection Of Polyethylene Glycols In Biological Fluids
    • 用于定性和/或定量检测聚乙二醇在生物流体中的方法
    • US20070196927A1
    • 2007-08-23
    • US10570784
    • 2004-08-31
    • Christian GrandfilsGuy DandrifosseRene RemacleIbrahim BarakatPatricia Deloyer
    • Christian GrandfilsGuy DandrifosseRene RemacleIbrahim BarakatPatricia Deloyer
    • G01N33/44
    • G01N33/52G01N31/22
    • The subject matter of the present invention relates a method for detection of polyethylene glycols (PEG) in an aqueous solution or in a sample of a biological fluid in a qualitative and/or semi-quantitative and/or quantitative manner, the method comprising the addition of a reagent containing iodine, alkali metal iodide and an acid; and a method for assessing the permeability of the intestine wherein two PEGs of different molecular weight, low molecular weight PEG (l.m.w. PEG) and high molecular weight PEG (h.m.w. PEG) are used as markers, wherein the l.m.w. PEG is able to cross the intestinal mucosa under physiological conditions and the h.m.w. PEG is essentially not able to cross the intestinal mucosa under physiological conditions, but is able to cross the intestinal mucosa under non-physiological, irregular conditions; and wherein h.m.w. and l.m.w. PEG concentrations are measured in a sample of urine from an individual after oral administration of h.m.w. PEG and l.m.w. PEG, wherein the differential index of h.m.w. PEG and l.m.w. PEG in the urine is calculated after determining the concentrations of h.m.w. PEG and l.m.w. PEG by using a reagent for quantitative detection of polyethylene glycol (PEG) in biological fluids, the reagent containing iodine, alkali metal iodide and an acid; and a kit for qualitative and/or semi-quantitative and/or quantitative detection of polyethylene glycol in biological fluids, e.g. in urine.
    • 本发明的主题涉及以定性和/或半定量和/或定量方式在水溶液或生物流体样品中检测聚乙二醇(PEG)的方法,该方法包括加入 含有碘,碱金属碘化物和酸的试剂; 和用于评估肠的渗透性的方法,其中使用不同分子量的低分子量PEG(1m.w.PEG)和高分子量PEG(h.m.w.PEG)的两种PEG作为标记物,其中l.m.w. PEG在生理条件下能够穿过肠粘膜,而h.m.w. PEG在生理条件下基本上不能穿过肠粘膜,但能够在非生理,不规则的条件下穿过肠粘膜; 并且其中h.m.w 和l.m.w. 在口服h.m.w后,来自个体的尿液样品中测量PEG浓度。 PEG和l.m.w. PEG,其中h.m.w的微分指数 PEG和l.m.w. 在确定h.m.w的浓度后计算尿中的PEG。 PEG和l.m.w. PEG通过使用用于在生物体液中定量检测聚乙二醇(PEG)的试剂,含有碘,碱金属碘化物和酸的试剂; 以及用于生物流体中聚乙二醇的定性和/或半定量和/或定量检测的试剂盒,例如。 在尿液