Atomic spectrometry update – a review of advances in environmental analysis

Bacon, Jeffrey R.; Butler, Owen T.; Cairns, Warren R. L.; Cook, Jennifer M.; Davidson, Christine M.; Mertz‐Kraus, Regina

doi:10.1039/c9ja90060h

Cited by 24 publications

(18 citation statements)

References 466 publications

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“…Arsenic is globally recognized carcinogen that is widely contaminated in groundwater due to the influence of human industry and mining [ 109 ]. As 3+ is the most toxic form, with its toxicity about 60 times of As 5+ .…”

Section: Aptasensors For Heavy Metals Ion Detectionmentioning

confidence: 99%

Advances in aptamer screening and aptasensors’ detection of heavy metal ions

et al. 2021

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Heavy metal pollution has become more and more serious with industrial development and resource exploitation. Because heavy metal ions are difficult to be biodegraded, they accumulate in the human body and cause serious threat to human health. However, the conventional methods to detect heavy metal ions are more strictly to the requirements by detection equipment, sample pretreatment, experimental environment, etc. Aptasensor has the advantages of strong specificity, high sensitivity and simple preparation to detect small molecules, which provides a new direction platform in the detection of heavy metal ions. This paper reviews the selection of aptamers as target for heavy metal ions since the 21th century and aptasensors application for detection of heavy metal ions that were reported in the past five years. Firstly, the selection methods for aptamers with high specificity and high affinity are introduced. Construction methods and research progress on sensor based aptamers as recognition element are also introduced systematically. Finally, the challenges and future opportunities of aptasensors in detecting heavy metal ions are discussed.

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Section: Aptasensors For Heavy Metals Ion Detectionmentioning

confidence: 99%

Advances in aptamer screening and aptasensors’ detection of heavy metal ions

et al. 2021

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“…There are lots of different analytical techniques which are helpful in the chemical characterization of soils. Basically, these are highly accurate instrumental techniques for elemental analysis such as Atomic Absorption Spectroscopy (AAS), Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES), Inductively Coupled Plasma Mass Spectroscopy (ICP-MS), and others that require complex sample preparation and transformation sample from a solid state into a liquid [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

FTIR as a Method for Qualitative Assessment of Solid Samples in Geochemical Research: A Review

Tkachenko

Niedzielski

2022

Molecules

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This study aims to collect information about soil investigation by FTIR. As we know, the FTIR technique is most often used in organic and bioorganic chemistry, while in geochemistry FTIR spectroscopy is not used very often. Therefore, there is a problem with the identification and interpretation of the IR spectra of minerals contained in sediments and soils. The reason for this is a deficiency of data about characteristic wavenumbers for minerals. Therefore, this study reviews and sums up, in one place, published articles that are connected to an investigation of minerals from 2002 to 2021 (based on the Scopus database). Additionally, the present review highlights various analytical techniques (ATR-FTIR, DRIFT, 2D-IR, and SR-FTIR) and discusses some of them for geochemical study. Additionally, the study describes helpful tools in the data pre-processing of IR spectra (normalization, baseline correction, and spectral derivatives).

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“…Up to now, many techniques have been developed to determine mercury ions, including inductively coupled plasma mass spectrometry, atomic absorption spectrometry, anodic stripping voltammetry and electrochemical methods, etc. [ 5 , 6 , 7 , 8 ]. These analytical techniques can measure the levels of mercury sensitively and accurately, but they have to be operated using expensive and sophisticated equipment and require complicated sample preparation procedures, which limits their application for rapid and simple detection [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

Dual-Emission Fluorescence Probe Based on CdTe Quantum Dots and Rhodamine B for Visual Detection of Mercury and Its Logic Gate Behavior

Gao

Liu

et al. 2021

Micromachines

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It is urgent that a convenient and sensitive technique of detecting Hg2+ be developed because of its toxicity. Conventional fluorescence analysis works with a single fluorescence probe, and it often suffers from signal fluctuations which are influenced by external factors. In this research, a novel dual-emission probe assembled through utilizing CdTe quantum dots (QDs) and rhodamine B was designed to detect Hg2+ visually. Only the emission of CdTe QDs was quenched after adding Hg2+ in the dual-emission probe, which caused an intensity ratio change of the two different emission wavelengths and hence facilitated the visual detection of Hg2+. Compared to single emission QDs-based probe, a better linear relationship was shown between the variation of fluorescence intensity and the concentration of Hg2+, and the limit of detection (LOD) was found to be11.4 nM in the range of 0–2.6 μM. Interestingly, the intensity of the probe containing Hg2+ could be recovered in presence of glutathione (GSH) due to the stronger binding affinity of Hg2+ towards GSH than that towards CdTe QDs. Based on this phenomenon, an IMPLICATION logic gate using Hg2+/GSH as inputs and the fluorescence signal of QDs as an output was constructed.

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Atomic spectrometry update – a review of advances in environmental analysis

Abstract: This review covers advances in the analysis of air, water, plants, soils and geological materials by a range of atomic spectrometric techniques including atomic emission, absorption, fluorescence and mass spectrometry.

Cited by 24 publications

References 466 publications

Advances in aptamer screening and aptasensors’ detection of heavy metal ions

Advances in aptamer screening and aptasensors’ detection of heavy metal ions

FTIR as a Method for Qualitative Assessment of Solid Samples in Geochemical Research: A Review

Dual-Emission Fluorescence Probe Based on CdTe Quantum Dots and Rhodamine B for Visual Detection of Mercury and Its Logic Gate Behavior

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