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F Frantzen K Grimsrud DE Heggli AL Faaren T L?vli E Sundrehagen 《Canadian Metallurgical Quarterly》1997,43(12):2390-2396
We present a new filter assay for the determination of glycohemoglobin as a unique application of the boronic acid affinity principle. With the use of a water-soluble blue-colored boronic acid derivative and a specific precipitation method for hemoglobin, total hemoglobin including bound boronic acid is precipitated and collected on a filter strip before quantification. Hemoglobin and boronic acid are quantified by a dual-wave-length reflectometric measurement, and the result is reported directly as percent glycohemoglobin. The test is simple, quick, and designed as a doctors' office test for the monitoring and management of diabetes. The imprecision of the assay is < 4% over the range 3-18% Hb A1c, and the method is linear up to at least 20% Hb A1c. Comparisons with four well-established glycohemoglobin methods yielded correlation coefficients ranging from 0.94 to 0.99, with slopes from 0.94 to 1.01. 相似文献
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