{{'Search' | translate}}
 

SMZ140 Stereo Microscope Series

Company: Motic
Catalog#: SMZ-140
Bio-protocol()
Company-protocol()
Other protocol()

Determination of Elemental Concentrations in Lichens Using ICP-AES/MS
Author:
Date:
2017-03-05
[Abstract]  Lichens are good biomonitors for air pollution because of their high enrichment capability of atmospheric chemical elements. To monitor atmospheric element deposition using lichens, it is important to obtain information on the multi-element concentrations in lichen thalli. Because of serious air pollution, elemental concentrations in thalli of lichens from North China (especially Inner Mongolia, Hebei, Shanxi and Henan province) are often higher than those from other regions, therefore highlighting the necessity to optimize ICP-AES/MS (Inductively coupled plasma-atomic emission spectroscopy/mass spectrometry) for analyzing lichen element content. Based on the high elemental concentrations in the lichen samples, and the differences in the sensitivity and detection limits between ICP-MS and ... [摘要]  由于大气化学元素富集能力强,地衣是空气污染的良好生物监测器。使用地衣来监测大气元素沉积,重要的是要获取有关地衣中多元素浓度的信息。由于严重的空气污染,华北地区(特别是内蒙古,河北,山西,河南等地区)的地衣单质浓度通常高于其他地区,因此强调了优化ICP-AES / MS(电感耦合等离子体原子发射光谱/质谱)用于分析地衣元素含量。基于地衣样品中高元素浓度以及ICP-MS和ICP-AES敏感性和检测限的差异,我们提出了一种使用ICP-AES / MS分析地衣31种元素的方案。二十二个元素(Cd,Ce,Co,Cr,Cs,Cu,K,La,Mo,Na,Ni,Pb,Rb,Sb,Sc,Sm,Sr,Tb,Th,Tl,V和Zn)通过使用微波消解 - ICP-MS和9种元素(Al,Ba,Ca,Fe,Mg,Mn,P,S和Ti)通过使用灰化 - 碱熔融 - ICP-AES鉴定。

背景 地衣已被广泛应用于世界许多地区的空气污染生物监测,包括在一些地区遇到重金属大气污染的中国。最近的研究发现,华北地衣的元素浓度高于其他地区(Liu等人,2016a; 2016b和2016c)的文献价值的上限,这个地区严重的空气污染。
 与其他技术(例如分光光度法,原子吸收光谱法和原子荧光光谱法)相比,ICP-AES / ...

Comments