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US 12,590,969 B2Granted
Method and device for detecting urea
AssigneeIndustrial Technology Research Institute
InventorsJie-Bi Hu, Chin-Ping Huang, Pei-Hua Yeh
Life of this patent
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Abstract
A method and device for detecting urea are provided. The method for detecting urea includes the following steps. A derivatization reagent reacts with a sample to obtain a mixture, wherein a reaction time period for reacting urea in the sample with the derivatization reagent to form a derivative product is controlled. The derivative product is separated from the mixture. The amount of separated derivative product is analyzed to determine the concentration of urea in the sample.
Claims19
A method for detecting urea, comprising:
- reacting a derivatization reagent with a sample to obtain a mixture, wherein a reaction time period for reacting urea in the sample with the derivatization reagent to form a derivative product is controlled, and wherein a concentration of derivatization reagent is 0.02 wt % to 0.2 wt %;
- separating the derivative product from the mixture;
- and
- analyzing an amount of separated derivative product to determine a urea concentration of the sample.
1 more element
A device for detecting urea, comprising:
- a feeding element;
- a reaction element coupled to the feeding element such that a derivatization reagent and a sample are introduced into the reaction element using the feeding element, wherein the derivatization reagent is mixed with a sample in the reaction element to obtain a mixture, and a urea in the sample reacts with the derivatization reagent to form a derivative product for a reaction time period, and wherein a concentration of derivatization reagent is 0.02 wt % to 0.2 wt %;
- a volume-control element coupled to the reaction element to introduce the mixture into the volume-control element;
- a separation element coupled to the volume-control element, wherein the volume-control element introduces the mixture with a fixed volume into the separation element such that the derivative product in the mixture is separated using the separation element;
- and
- an analysis element coupled to the separation element such that an amount of the derivative product is analyzed and a urea concentration of the sample is calculated.
3 more elements
Dependencies are inferred from the claim text.