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    • 8. 发明授权
    • Lower alcohol sulfate wash solution
    • 低级酒精硫酸盐洗液
    • US5599715A
    • 1997-02-04
    • US546980
    • 1990-07-02
    • Harold C. Warren, IIINorbert S. NorkusMargaret J. Smith-Lewis
    • Harold C. Warren, IIINorbert S. NorkusMargaret J. Smith-Lewis
    • G01N33/531G01N33/537G01N33/76G01N33/53
    • G01N33/76G01N33/537Y10S435/81Y10S435/975Y10S436/808Y10S436/811Y10T436/107497
    • An aqueous wash solution is buffered to a pH of from about 5 to about 9 and contains at least about 1.5 weight percent of a compound comprising a lower alcohol sulfate anion having from 6 to 10 carbon atoms and an alkali metal or ammonium cation, such as sodium decyl sulfate. This wash solution is useful in a method for the determination of an immunological ligand, and is not prone to crystallization at lower temperatures. Particularly, it is useful for washing the immunological complex formed between the ligand and a receptor molecule therefor. Unreacted materials can be readily separated from the complex by the washing, particularly if the separation is carried out using a filtration membrane in a test device. A test kit for ligand determination comprises the wash solution as well as one or more receptors for the ligand, at least one of which is labeled for detection. This kit is particularly useful for measuring human chorionic gonadotropin (hCG) as an early indicator of pregnancy.
    • 将水性洗涤溶液缓冲至约5至约9的pH,并含有至少约1.5重量%的包含具有6至10个碳原子的低级醇硫酸根阴离子和碱金属或铵阳离子的化合物,例如 十二烷基硫酸钠。 该洗涤溶液可用于测定免疫配体的方法,并且在较低温度下不易于结晶。 特别地,用于洗涤配体和受体分子之间形成的免疫复合物是有用的。 未反应的材料可以通过洗涤容易地从络合物中分离,特别是如果在测试装置中使用过滤膜进行分离。 用于配体测定的测试试剂盒包括洗涤溶液以及配体的一种或多种受体,其中至少一种被标记用于检测。 该试剂盒特别适用于测量人绒毛膜促性腺激素(hCG)作为怀孕的早期指标。