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 >> Journal of Chromatography A >>article
Journal of Chromatography A

Journal of Chromatography A

IF: 3.8
Download PDF

A rapid method for detecting bronopol in fresh fish, shrimp, crab, and shellfish samples using liquid chromatography-tandem mass spectrometry

Published:8 November 2023 DOI: 10.1016/j.chroma.2023.464429 PMID: 37826921
Mengqiang Wang , Li Jia , Xun Jiao , Tangwei Zhang , Ming Xiao , Miao Wang , Shanshan Wang , Lufei Zheng , Jing Wang , Yongxin She , A.M. Abd?EI-Aty

Abstract

Fish farming plays a vital role in providing food, nutrition, and employment globally. However, this industry faces security challenges, necessitating the use of fungicides and preservatives, such as bronopol, to increase product yields. Bronopol (2?bromo-2-nitropropan-1,3-diol; CAS:52–51–7) is widely used in various fields, including food production, cosmetics, and, more recently, aquaculture. Currently, there is a limited number of techniques available for detecting bronopol in aquaculture products. This is primarily due to bronopol's instability, susceptibility to degradation, and tendency to form precipitates that pose challenges in extraction from aquaculture products. For this issue, this study presents a comprehensive method for detecting bronopol content in aquaculture tissues using liquid chromatography-tandem mass spectrometry (LC?MS/MS). The methodology was optimized, involving extraction with Cu-Zn precipitant, cleanup using a small HLB column, separation on a T3 column, and gradient elution with water and acetonitrile mobile phases. The quantitative approach was employed without the use of an internal standard, following the external standard method. The spiked recoveries at 3 fortification levels (0.1, 0.2, and 1?mg/kg) ranged from 87.1?% to 108.1?% with relative standard deviations RSD ≤ 9.0?%. By applying this method to fresh fish, shrimp, crab, and shellfish samples from a local supermarket, no residues of bronopol were detected, ensuring the reliability of the results. The simplicity, rapidity, and high sensitivity of the method make it a suitable alternative to conventional techniques for bronopol detection. Moreover, the successful validation of the method's recovery and precision supports its potential application in monitoring and preventing the misuse of bronopol in aquaculture, thereby safeguarding aquaculture product quality and protecting public health.

Substances (3)

Related products
Procduct Name CAS Molecular Formula Supplier Price
Acetonitrile 75-05-8 C2H3N 1115 suppliers $10.00-$61180.00
Bronopol 52-51-7 C3H6BrNO4 865 suppliers $7.62-$2495.47
SOD1 / Cu-Zn SOD Antibody (aa2-154, Cy3) LS-C701675 - Inquiry
灵川县| 波密县| 霞浦县| 绍兴市| 慈利县| 双流县| 佛山市| 海南省| 边坝县| 双流县| 成安县| 黄骅市| 叙永县| 竹北市| 乐陵市| 当阳市| 项城市| 壶关县| 琼结县| 宜川县| 康定县| 武安市| 桃江县| 嘉鱼县| 沾益县| 东台市| 镇安县| 务川| 驻马店市| 林甸县| 六安市| 田东县| 久治县| 隆昌县| 芜湖县| 定南县| 高青县| 芒康县| 巴南区| 津市市| 福泉市|