Speciation analysis of mercury in natural water and fish samples by using capillary electrophoresis–inductively coupled plasma mass spectrometry

Zhao, YunQiang; Zheng, Jie; Fang, Ling; Qiu, Lin; Wu, Yongning; Xue, Zhimin; Fu, FengFu

doi:10.1016/j.talanta.2011.12.029

Cited by 95 publications

(78 citation statements)

References 30 publications

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“…For the determination of dried fish muscle sample, the Hg 2+ and CH 3 Hg + in fish muscle sample were firstly extracted by the MAE method, which reported in our previous paper [4]. The extract was filtered through a 0.22 μm membrane filter and was evaporated to near dryness with vacuum freeze drying at -46 • C. The residue was quantitatively dissolved into appropriate volume of running buffer again (according to the mercury content in sample), and the final solution was used for the Hg 2+ and CH 3 Hg + analysis with CE-ICP-MS according to the procedure described in Section 2.3.…”

Section: Determination Of Dried Fish Muscle Samplementioning

confidence: 99%

“…For example, HPLC or GC or CE hyphenated with atomic fluorescence spectrometry (AFS) or inductively coupled plasma mass spectrometry (ICP-MS) [4][5][6][7][8][9][10][11][12][13][14][15][16]. Among all above hyphenated techniques, CE-ICP-MS has attracted increasing attention since CE has higher separation efficiency for all ionic and neutral species, tiny sample requirement, various separation modes and low operating cost [17][18][19], and ICP-MS has short detection time, broad dynamic range, multi-element capabilities, excellent mass resolution and high sensitivity for almost metallic ions.…”

Section: Introductionmentioning

confidence: 99%

“…However, the CE separation of Hg 2+ and CH 3 Hg + is still a complicated problem since these mercury compounds in solution generally presented as un-dissociated molecules [20]. An effective way to solve this problem is to complex Hg 2+ and CH 3 Hg + with an ionic agent having thiol group or complexones [4,19,[21][22][23]. So far, nearly all of previous CE-ICP-MS methods for the speciation analysis of mercury used mercaptoacetic acid (MAA) or cysteine or dithizone as complexing agent [4,15,[22][23][24].…”

Section: Introductionmentioning

confidence: 99%

“…An effective way to solve this problem is to complex Hg 2+ and CH 3 Hg + with an ionic agent having thiol group or complexones [4,19,[21][22][23]. So far, nearly all of previous CE-ICP-MS methods for the speciation analysis of mercury used mercaptoacetic acid (MAA) or cysteine or dithizone as complexing agent [4,15,[22][23][24]. However, the CE-ICP-MS methods previously reported have a longer separation time and relatively low sensitivity when amplification strategy was not employed [4,15,[22][23][24].…”

Section: Introductionmentioning

confidence: 99%

“…So far, nearly all of previous CE-ICP-MS methods for the speciation analysis of mercury used mercaptoacetic acid (MAA) or cysteine or dithizone as complexing agent [4,15,[22][23][24]. However, the CE-ICP-MS methods previously reported have a longer separation time and relatively low sensitivity when amplification strategy was not employed [4,15,[22][23][24]. Lately, a rapid CE-ICP-MS method was developed for the speciation analysis of mercury by using a short CE capillary (only 16 cm) [25].…”

Section: Introductionmentioning

confidence: 99%

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DNA binding in combination with capillary electrophoresis and inductively coupled plasma mass spectrometry for the rapid speciation analysis of mercury

Chen

Wang

et al. 2018

Separation Science Plus

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We herein developed a method for the rapid speciation analysis of Hg 2+ and CH 3 Hg + by using specific DNA sequences to bind Hg 2+ and CH 3 Hg + together with capillary electrophoresis and inductively coupled plasma mass spectrometry. The specific DNA sequences can combine with Hg 2+ and CH 3 Hg + with different binding force, which makes the formed DNA-Hg 2+ and DNA-CH 3 Hg + conjugates possess different negative charges, and thus make Hg 2+ and CH 3 Hg + can be more easily and rapidly separated by capillary electrophoresis under reverse mode. Under the optimal conditions, the Hg 2+ and CH 3 Hg + can be baseline separated and detected by capillary electrophoresis-inductively coupled plasma mass spectrometry within 11 min with a detection limit of 0.12 and 0.10 ng/mL, respectively. With the help of the method, we have successfully determined Hg 2+ and CH 3 Hg + in dried fish muscle samples with a recovery of 95-101% and a relative standard deviation (n = 6) <5%. In comparison with previous capillary electrophoresis and inductively coupled plasma mass spectrometry methods, the proposed method has shorter separation time and higher sensitivity under the same conditions of inductively coupled plasma mass spectrometry. Higher sensitivity and shorter separation time make our method a valuable technique to the speciation analysis of trace Hg 2+ and CH 3 Hg + in the environmental and food samples.

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Section: Determination Of Dried Fish Muscle Samplementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

DNA binding in combination with capillary electrophoresis and inductively coupled plasma mass spectrometry for the rapid speciation analysis of mercury

Chen

Wang

et al. 2018

Separation Science Plus

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Atomic Spectroscopy in Food AnalysisUpdate based on the original article by Scott A. Baker and Nancy J. Miller‐Ihli,Encyclopedia of Analytical Chemistry, © 2000, John Wiley & Sons, Ltd

Baker¹,

Miller-Ihli²,

Fodor

et al. 2012

Encyclopedia of Analytical Chemistry

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There are several reasons that can explain why food analysis is a topic of strong interest for a large number of institutes around the world. Consumer demands have increased toward healthier and safer food products produced in environment‐friendly conditions. Food manufacturers and food distribution companies have to improve their quality control (QC) of raw materials, manufacturing processes, and end‐products to provide safe, healthy, and high‐quality products at reasonable price. Evaluation of element (e.g. essential and toxic) contents is an important part of nutrition and health claims made on foods. The methods best suited to meet this task are atomic spectroscopic methods such as atomic absorption, atomic emission, and elemental mass spectrometry (MS). Methods commonly used in the generation of food composition data include flame atomic absorption spectrometry (FAAS), graphite furnace atomic absorption spectrometry (GFAAS), inductively coupled plasma atomic emission spectrometry (ICP/AES), and inductively coupled plasma mass spectrometry (ICP/MS). FAAS and ICP/AES offer similar detection limits (DLs) (ng mL −1 levels), whereas GFAAS and ICP/MS can provide sub‐ng mL −1 detection capability. The choice of a method often depends on detection capability, but ease of use, speed of analysis, and cost must also be considered. ICP/AES, ICP/MS, and more recently GF/AAS offer the advantage of providing simultaneous multielement measurements, making them well suited for the analysis of large numbers of elements in food samples. If one or a few elements are to be determined, less expensive atomic absorption spectrometry (AAS) methods might be more suitable. The most critical stage in the development of analytical methods is sample preparation. Samples can be prepared using numerous procedures, but the most useful for a wide range of analytes and sample matrices are based on wet ashing of the sample. In addition to total element determinations, speciation measurements are important to determine the exact chemical form of the element that is present in the sample. As important properties, such as the bioavailability of an element, are dependent on its chemical form (speciation), the development of reliable methods for identification and quantification of trace element species is critical. The most practical difficulty encountered in speciation is to preserve the integrity of the sample and the species of interest during sampling, storage, and sample preparation. Hyphenated techniques, such as the coupling of chromatographic separation and atomic spectroscopic detection, have proven useful for elemental speciation measurements.

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Inductively Coupled Plasma Mass Spectrometry Analysis of Environmental Samples for the Quantification of Potentially Toxic Species

Teuma‐Castelletti

Sadiq

Beauchemin

2020

Encyclopedia of Analytical Chemistry

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The analysis of environmental samples is widely carried out to determine if a soil is safe for agricultural use, if water is safe to drink, if the air that we breathe can make us sick, how far reaching is pollution, if a contaminated site has been suitably remediated, etc. This article discusses how inductively coupled plasma mass spectrometry (ICPMS) can be used to this end. Indeed, with detection limits at the parts per trillion or even parts per quadrillion level, depending on the element and the instrument, ICPMS is very advantageous for the detection and quantification of toxic or potentially toxic species in environmental samples. This article describes sample preparation for ICPMS analysis and instrument calibration to yield accurate quantitative results. This includes the precautions that are often required, which vary depending on the type of analysis, sample matrix, instrument, and elements to be determined. It also includes techniques that can be coupled to ICPMS to increase its capabilities, such as laser ablation or electrothermal vaporization for direct solid analysis and liquid chromatography, gas chromatography, or capillary electrophoresis for speciation analysis, as speciation information is lost in the inductively coupled plasma (ICP) where all compounds are atomized.

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Speciation analysis of mercury in natural water and fish samples by using capillary electrophoresis–inductively coupled plasma mass spectrometry

Cited by 95 publications

References 30 publications

DNA binding in combination with capillary electrophoresis and inductively coupled plasma mass spectrometry for the rapid speciation analysis of mercury

DNA binding in combination with capillary electrophoresis and inductively coupled plasma mass spectrometry for the rapid speciation analysis of mercury

Atomic Spectroscopy in Food AnalysisUpdate based on the original article by Scott A. Baker and Nancy J. Miller‐Ihli,Encyclopedia of Analytical Chemistry, © 2000, John Wiley & Sons, Ltd

Inductively Coupled Plasma Mass Spectrometry Analysis of Environmental Samples for the Quantification of Potentially Toxic Species

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