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Catalyzed Determination of Glucose with a Mimic Enzyme Constructed of Bis‐[‐6‐O‐(‐β‐ethyloic‐butanedioic Acid‐1,4‐ester‐4‐)]β‐Cyclodextrin · Fe3+

Abstract Catalyzed determination of glucose with mimic glucose oxidase is constructed by the reaction of β‐cyclodextrin, maleic anhydride, and chloroacetic acid with iron trichloride in hydrogen peroxide. The method is simple and convenient, and sensitivity and repeatability are ideal. Beer's law is obeyed in a concentration range of 30–197 µg · ml−1 glucose with an excellent correlation coefficient (r=0.9994), while the detection limit is 4.10 µg · ml−1, the RSD is 0.98% (n=8). The recovery of sample is 95.8–103.1%.