Urine iodine test reagent kit

Abstract

The present invention relates to a urine iodine determination kit. It includes urine purification device, diluent liquor, color-developing liquor, composite oxidant and standard colorimetric plate. Said kit can quickly remove interference substance from the urine, and can be used for accurately determining iodine concentration in the urine. The above-mentioned urine purification device is a titration type container in which a selective specific adsorbent for specifically adsorbing interference substance in the urine is held. Said selective specific adsorbent is made up by using purification active carbon and iodine adsorption agonist NaCl, MgCl2 or NaBr through baking activation process, the above-mentioned color-developing liquor is a mixed reagent formed from tetramethylbenzidine aqueous solution and polyethylene glycol. Besides, said invention also provides the composition of the composite oxidant.

Description

technical field

[0001] The invention belongs to the field of in vitro diagnostic kits, in particular to a urine iodine determination kit for evaluating the iodine nutritional status of a human body by measuring the iodine concentration in urine. Background technique

[0002] Iodine deficiency disorder is the most widely distributed in the world and the most harmful micronutrient deficiency disease to human mental health. The classic urine iodine determination method is the Sandell-Kolthoff reaction, which is recommended by WHO and IDDICC. The basic principle is that iodine catalyzes the reduction of tetravalent cerium to trivalent cerium, which reduces the concentration of cerium-arsenic complex, resulting in a decrease in the absorbance at 405nm. In order to remove interfering substances in the urine, the urine must be digested with perchloric acid at 110°C, or the specimens should be ashed in a high-temperature furnace before determination. Because the digestive agent pe...

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