In-situ electrochemical method for detecting freely dissolved polycyclic aromatic hydrocarbons in water

化学 荧蒽 环境化学 克丽舍恩 多环芳烃 色谱法 有机化学
作者
Abra Penezić,Blaženka Gašparović,Draženka Stipaničev,Andrew Nelson
出处
期刊:Environmental Chemistry [CSIRO Publishing]
卷期号:11 (2): 173-173 被引量:14
标识
DOI:10.1071/en13148
摘要

Environmental context Polycyclic aromatic hydrocarbons (PAHs) are potentially carcinogenic and mutagenic compounds found in the atmosphere, soil, sediments and water. They can bioaccumulate in marine organisms where they pose a threat to the health of the organisms. We are developing a low-cost and simple electrochemical method to monitor the concentrations of these compounds in the aquatic environment. Abstract A new sensing system for polycyclic aromatic hydrocarbons (PAHs) in waters is being developed. The system consists of a wafer-based device with a chip-based mercury on platinum microelectrode as a working electrode and a platinum auxiliary electrode, incorporated into a flow cell system with an external reference electrode. The Hg microelectrode was coated with a phospholipid–triglyceride mixed layer and interactions between anthracene, phenanthrene, pyrene and fluoranthene and the layer were monitored using rapid cyclic voltammetry. The layer proved sensitive to interactions with PAHs in ‘organic matter free’ seawater, with respective detection limits of 0.33, 0.35, 0.15 and 0.32μgL–1 for phenanthrene, pyrene, anthracene and fluoranthene. Tested interferences, such as sodium humate, dextran T-500 and bovine serum albumin, representing humic substances, polysaccharides and proteins, did not have an influence on the layer response. The system was also tested with a river water sample where concentrations of PAHs were determined using the standard addition method and compared with the results obtained by using gas chromatography–mass spectrometry (GC-MS). The concentration of total PAHs obtained by the standard addition method is ~80% lower compared with the results obtained by GC-MS analysis. The difference is explained by the fact that the electrochemical method measures water-soluble and free PAHs whereas the chromatographic method measures both dissolved and particulate–organic PAHs.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
叶公子发布了新的文献求助10
1秒前
杨瑞发布了新的文献求助10
1秒前
wang完成签到,获得积分10
2秒前
Jasper应助跳跳妈妈采纳,获得10
2秒前
NIUB发布了新的文献求助10
3秒前
4秒前
11发布了新的文献求助10
4秒前
QiangWang1991完成签到,获得积分10
4秒前
4秒前
香蕉觅云应助纯真醉波采纳,获得10
4秒前
4秒前
CMUSK发布了新的文献求助20
5秒前
魔幻擎宇完成签到,获得积分20
6秒前
6秒前
ddz完成签到,获得积分10
7秒前
滕擎完成签到,获得积分10
7秒前
我是老大应助周周采纳,获得10
7秒前
杨瑞完成签到,获得积分10
7秒前
阿宝发布了新的文献求助10
7秒前
8秒前
咖啡续命完成签到,获得积分10
8秒前
飞哥发布了新的文献求助10
8秒前
飞云发布了新的文献求助30
9秒前
SJAW完成签到,获得积分10
9秒前
英俊的铭应助菲菲采纳,获得10
10秒前
10秒前
汤飞柏发布了新的文献求助20
10秒前
萝卜完成签到,获得积分10
10秒前
11秒前
11秒前
xiaowang发布了新的文献求助10
12秒前
13秒前
15秒前
萝卜发布了新的文献求助10
15秒前
15秒前
时柚发布了新的文献求助10
15秒前
asule13发布了新的文献求助10
15秒前
3242晶完成签到,获得积分10
16秒前
16秒前
16秒前
高分求助中
Picture Books with Same-sex Parented Families: Unintentional Censorship 700
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
Effective Learning and Mental Wellbeing 300
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3974856
求助须知:如何正确求助?哪些是违规求助? 3519400
关于积分的说明 11198085
捐赠科研通 3255563
什么是DOI,文献DOI怎么找? 1797860
邀请新用户注册赠送积分活动 877208
科研通“疑难数据库(出版商)”最低求助积分说明 806219