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公开(公告)号：EP2663858A1
公开(公告)日：2013-11-20
申请号：EP11805283.6
申请日：2011-12-06
发明人： CHEN, Bingzhi , AGREE, Alan, Michael , XIAO, Caibin , YU, Chunbo , XU, Hong
CPC分类号： G01N31/22 , G01N21/274 , G01N21/77 , G01N21/78 , G01N21/80 , G01N33/18 , G01N2021/7786 , Y10T436/193333
摘要： Measuring the concentration of an analyte in an aqueous solution by obtaining an aqueous solution containing an analyte, providing a cyanine indicator, placing the aqueous solution in fluid communication with the cyanine indicator, measuring a detectable property change of the cyanine indicator, and comparing the detectable property change of the cyanine indicator with a calibration curve of the detectable property change of samples containing known concentrations of the analyte. The concentration of the analyte is determined using the detectable property change that is proportional to the concentration of the analyte in the aqueous solution.
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2.发明公开METHOD FOR THE DETERMINATION OF AQUEOUS POLYMER CONCENTRATION IN WATER SYSTEMS 审中-公开用于确定水性聚合物在水中的浓度系统
公开(公告)号：EP2162730A1
公开(公告)日：2010-03-17
申请号：EP08769201.8
申请日：2008-04-28
发明人： ZHANG, Li , XIAO, Caibin , CUI, Weiyi , CHEN, Bingzhi , ZHENG, Zhixin , LONG, Yinhua
CPC分类号： G01N31/22 , G01N21/78 , G01N33/182 , G01N2021/773 , G01N2021/7783
摘要： The concentration of an anionically charged polymer in an aqueous solution is determined with a thin solid film having a polymer matrix and a cationic dye. A sample of an aqueous solution containing at least one anionically charged polymer to be tested is applied to the film sensor. The absorbance of the film sensor is measured after the sample has been applied. The absorbance of the film sensor is then compared with a calibration curve of the absorbance of samples containing known concentrations of the anionically charged polymers to determine the concentration of anionically charged polymer in the sample.
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3.发明公开
公开(公告)号：EP2145174A1
公开(公告)日：2010-01-20
申请号：EP08745843.6
申请日：2008-04-15
发明人： XAIO, Caibin , CHEN, Bingzhi , CUI, Weiyi , ZHANG, Li
CPC分类号： G01N21/80 , G01N21/274 , Y10T436/10
摘要： Systems and methods are described for measuring pH of low alkalinity samples. The present invention provides a sensor array comprising a plurality of pH indicators, each indicator having a different indicator concentration. A calibration function is generated by applying the sensor array to a sample solution having a known pH such that pH responses from each indicator are simultaneously recorded versus indicator concentration for each indicator. Once calibrated, the sensor array is applied to low alkalinity samples having unknown pH. Results from each pH indicator are then compared to the calibration function, and fitting functions are extrapolated to obtain the actual pH of the low alkalinity sample.
摘要翻译： 系统和方法被描述用于测量低碱度样品的pH值。 本发明提供了一种传感器阵列，其包括的pH指示剂复数，每个指示器具有不同的指示剂浓度。 通过将传感器阵列具有pH已知的搜索的确从每个指标的pH响应被同时记录与指示剂浓度为每个指标的试样溶液产生的校准功能。 一旦完成校准，传感器阵列被应用到具有未知的pH低碱度的样品。 从每个pH指示剂结果进行比较，以校准功能，并拟合函数外推，以获得低碱度样品的实际pH值。
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4.发明公开
公开(公告)号：EP2601515A1
公开(公告)日：2013-06-12
申请号：EP10855488.2
申请日：2010-08-03
发明人： XIAO, Caibin , CHEN, Bingzhi , YU, Chunbo , XU, Hong
CPC分类号： G01N31/22 , G01N21/78 , G01N21/80 , G01N31/221 , G01N33/18 , G01N33/182 , Y10T436/16 , Y10T436/193333
摘要： A multi-purpose reagent composition is used for simultaneously determining concentrations of at least two analytes in a water sample. The two analytes are selected from the group consisting of free chlorine, pH, anionic polymer and phosphates. In one embodiment, the multi-purpose reagent composition is for simultaneously determining the concentration of free chlorine and pH and comprises a free chlorine sensitive dye and pH indicator. In another embodiment, the reagent composition is for simultaneously determining of free chlorine and anionic polymer and includes a free chlorine sensitive dye, a pH buffer, cationic dye and organic co-solvent. Thus, the pairs of free chlorine and pH or free chlorine and anionic polymer are determined using a single reagent composition. The reagent composition can also be the main reagent for one analyte analysis when it is used exclusively and also function as an ancillary reagent when it is combined with a second reagent composition for the determination of another analyte.
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