Test strip for detecting analyte in sample
AssigneeZhejiang Orient Gene Biotech Co., Ltd
InventorsLili Shen, Fangli Zhou, Shenping Zhu, Zhaoxia Yao, Yu Peng
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Abstract
A test strip main body with a sample section, colloidal gold pads, an NC film and a water absorption end in sequence; and the colloidal gold pads are of 3 to 8 layers. Compared with the prior art, the test strip has higher sensitivity, which is beneficial to detection of trace or low-concentration samples.
Claims13
A test strip for detecting an analyte in a sample, comprising a test strip main body, wherein the test strip main body is sequentially provided with a sample pad, a labeling pad, a nitrocellulose (NC) film with a detection area, and a water absorption area pad;
- and the labeling pad comprises a plurality of labeling pad bodies overlapped end to end with each other;
- wherein labeling substances on the labeling pad bodies are the same labeling substance;
- wherein the labeling substances in a labeling area comprise antibodies specifically binding to the analyte in the sample and colored particles coupled with the antibodies;
- wherein the labeling pad bodies comprise colored areas sprayed with the labeling substances and white areas not containing the labeling substances;
- wherein the antibodies on the labeling pad bodies are antibodies specifically binding to tetrahydrocannabinol (THC), and the detection area on the NC film comprises THC antigens;
- wherein the labeling pad bodies are five labeling pad bodies overlapped end to end.
A test strip for detecting an analyte in a sample, comprising a test strip main body, wherein the test strip main body is sequentially provided with a sample pad, a labeling pad, an NC film with a detection area, and a water absorption area pad;
- and the labeling pad comprises a plurality of labeling pad bodies overlapped end to end with each other;
- wherein labeling substances on the labeling pad bodies are the same labeling substance;
- wherein the labeling substances in a labeling area comprise antibodies specifically binding to the analyte in the sample and colored particles coupled with the antibodies;
- wherein the labeling pad bodies comprise colored areas sprayed with the labeling substances and white areas not containing the labeling substances;
- wherein the antibodies on the labeling pad bodies are first antibodies specifically binding to human chorionic gonadotropin (HCG), and the detection area on the NC film comprises second antibodies specifically binding to the HCG;
- wherein the labeling pad bodies are four labeling pad bodies overlapped end to end.
Dependencies are inferred from the claim text.