一二三四区视频,亚洲少妇熟女色,日本久热无码视频网,欧美国产日韩大尺度,亚洲a视频,久久少妇一区二区,日韩999无码视频,刺激久久久久久久,啊啊啊啊不要啊在线

ChemicalBook >> journal list >> Food Chemistry >>article
Food Chemistry

Food Chemistry

IF: 8.5
Download PDF

Immunoassay for the detection of cyproconazole in foods: From hapten synthesis to the establishment of a gold immunochromatographic assay

Published:24 October 2023 DOI: 10.1016/j.foodchem.2023.137847 PMID: 37913707
Yang Liu, Lingling Guo, Liqiang Liu, Xinxin Xu, Hua Kuang, Liguang Xu, Chuanlai Xu

Abstract

Cyproconazole (CPZ) is extensively used in agricultural production. However, its overuse can lead to high residue problems in crops. Existing detection methods are still dominated by instrumental methods and the development of rapid, sensitive field detection remains a challenge. In this study, we designed a novel hapten synthetic pathway and prepared a monoclonal antibody (mAb) that could specifically recognize CPZ with high sensitivity (half inhibition rate was 0.27?ng/mL). From this, a gold immunochromatographic assay (GICA) for the detection of CPZ was established by combining the mAb with gold nanoparticles, with limits of detection in rice, tomatoes and grapes of 0.02?mg/kg, 0.01?mg/kg and 0.05?mg/kg, respectively. The spiked recoveries ranged from 86.5?% to 115.1?%, and the results showed that the GICA was not significantly different from detection using LC-MS/MS. Therefore, we have successfully developed a GICA method for the reliable in situ, rapid and sensitive detection of CPZ.

Substances (3)

Related products
Procduct Name CAS Molecular Formula Supplier Price
Pyrazinecarbonitrile 19847-12-2 C5H3N3 438 suppliers $5.00-$1083.16
GOLD 7440-57-5 Au 342 suppliers $43.30-$9840.00
Cyproconazole 94361-06-5 C15H18ClN3O 223 suppliers $35.00-$1580.00
万州区| 合水县| 曲阜市| 武乡县| 全南县| 扎赉特旗| 荥经县| 龙游县| 玛多县| 虞城县| 高雄县| 松阳县| 华蓥市| 平陆县| 平江县| 阿勒泰市| 苗栗县| 三明市| 增城市| 甘洛县| 博客| 于田县| 郴州市| 南乐县| 新干县| 突泉县| 鄂温| 苏尼特左旗| 布拖县| 郑州市| 汕尾市| 张家界市| 桐柏县| 张北县| 普定县| 兴安县| 富阳市| 大兴区| 八宿县| 福鼎市| 安新县|