Elimination of Memory Effects and Simultaneous Determination of B, Br, I, Hg, Bi, and Sb in Groundwater Samples by Inductively Coupled Plasma Mass Spectrometry

Zhang, Jiangyi; Guo, Wei

doi:10.46770/as.2014.03.001

Cited by 4 publications

(4 citation statements)

References 26 publications

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“…Total and filtered concentrations of elements (primarily for Pb, Zn, Cd, and Br, but also for 17 others (Be, Na, Mg, Al, K, Ca, V, Cr, Mn, Fe, Co, Ni, Cu, As, Ag, Sb, and Tl)) were determined by Inductively Coupled Plasma Mass Spectrometry (using an Agilent Technologies ICP MS 7900 with autosampler). Br concentrations were determined additionally by ion chromatography, as Br can have a memory effect on ICP-MS. 36 After initial assessment of the total and filtered concentrations of the elements analysed, three elements were selected for source apportionment analysis: Pb, Zn, and Cd, all of which fail WFD Environmental Quality Standards (EQS) from sample site N-3 onwards, and cause WFD EQS failure within the River Tywi for up to 25 km downstream of the site. 37…”

Section: Methodsmentioning

confidence: 99%

Identification and quantification of diffuse groundwater pollution in a mineralised watershed

Todd,

Robertson,

Byrne

et al. 2024

Environ. Sci.: Water Res. Technol.

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Section: Methodsmentioning

confidence: 99%

Identification and quantification of diffuse groundwater pollution in a mineralised watershed

Todd,

Robertson,

Byrne

et al. 2024

Environ. Sci.: Water Res. Technol.

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“…During the ICP-MS measurement, the memory effect, which causes longer washing time and higher baseline levels (Luguera et al 1991;Vanderpool et al 1994), was challenging. Numerous researchers have attempted to reduce this effect by adding ammonia, HF, NaF, or mannitol to the washing solution (Al-Ammar et al 2000; Li et al 2014;Tanimizu et al 2018;He et al 2019). In our study, we utilized a mixed acid consisting of 0.3M HNO 3 and 0.1M HF as a washing solution, which reduced the washing time to less than 3 minutes.…”

Section: Boron Concentration Measurementmentioning

confidence: 99%

Application of using a boron tracer to evaluate groundwater contamination in the Quaternary limestone aquifer in the southern region of Okinawa Island, Japan

Song,

Shinjo,

Ito

et al. 2023

Preprint

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This research presents the first quantitative analysis using the boron isotope in groundwater to study environmental contamination in the Quaternary limestone aquifers of the southern region of Okinawa Island. Due to the direct discharge of wastewater from human activities into the groundwater, monitoring water quality is of primary concern in this region. In this study, we reported on boron concentrations and δ11B values in groundwater, spring, soil, and possible contaminant samples collected between August 2020 and August 2021. Our results indicated that boron contents co-migrate with nitrate-nitrogen, as confirmed by a positive correlation between their concentrations, indicating that boron is a valuable tracer in the Ryukyu limestone region. We also observed that the four endmembers had different boron characteristics that could help diagnose the trend of contamination processes via mixing lines. The solute samples from our regional monthly monitoring showed that boron concentrations ranged from 12 to 168 ppb and δ11B values ranged from 19 to 38‰. We estimated that the rainwater contained 0.62% seawater, obtaining the best fit of solute samples to two trends on the mixing lines of fertilization (manure and fertilizer). The mixing calculation revealed that contribution rates were less than 1% and approximately 3% in groundwater and soil leachates, respectively. Overall, the quantitative application of the boron tracer allowed us to represent the distribution of contamination caused by fertilization in the Ryukyu limestone watershed.

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“…ICP-MS currently is the most common analytical method for concentration determination of trace elements due to its sensitivity and efficiency [ 39 – 44 ]. Some researchers used ICP-MS or ICP-MS-related technologies to determine Hg concentration in coal and coal fly ash, utilizing techniques such as slurry sampling electrothermal vaporization ICP-MS [ 45 ], isotope dilution cold-vapor generation ICP-MS [ 5 ], ICP-MS with microwave digestion [ 46 ], and ICP-MS after digestion using microwave-induced combustion [ 47 ].…”

Section: Introductionmentioning

confidence: 99%

“…However, most of these analytical methods are too complex to be applied to routine testing [ 41 ]. The most serious problem when using ICP-MS for mercury analysis that should be addressed is the mercury memory effect [ 40 , 41 , 44 , 48 ], because the detection of mercury in solid samples by ICP-MS requires the extraction of mercury from solid samples into aqueous solutions, mercury can adhere to the walls of the sample-introduction system even at very low concentration [ 39 ], resulting in a strong memory effort, and therefore, the accuracy of the test results will not be guaranteed.…”

Section: Introductionmentioning

confidence: 99%

Comparison of DMA-80 and ICP-MS Combined with Closed-Vessel Microwave Digestion for the Determination of Mercury in Coal

Zhang

Zhou

2020

Journal of Analytical Methods in Chemistry

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As one of the most widely used techniques for concentration determination of trace elements in coal, inductively coupled plasma mass spectrometry (ICP-MS) has also been used in several studies for the determination of mercury concentration in coal. ICP-MS after closed-vessel microwave digestion and a Milestone DMA-80 are employed in this study to determine the mercury concentration in coal. Three NIST standard references of coal samples were selected as references to verify the accuracy of the test results. The Au rinse solution (200 μg/L, 5% HNO3) can diminish mercury memory effects to a blank level within 80 seconds. The results showed that ICP-MS can accurately determine the mercury content in mercury standard solutions, but the mercury concentration in most NIST samples after microwave digestion is lower than the detection level of the ICP-MS. The inaccuracy may be due to volatilization of mercury during solid sample digestion process. By contrast, the determined concentrations in NIST samples by the Milestone DMA-80 are very close to the verified values. Therefore, ICP-MS is not recommended to analyze mercury in coal after digestion even in a closed-vessel digestion system, but the mercury direct analyzer (without digestion) is recommended to analyze mercury in coal.

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Elimination of Memory Effects and Simultaneous Determination of B, Br, I, Hg, Bi, and Sb in Groundwater Samples by Inductively Coupled Plasma Mass Spectrometry

Cited by 4 publications

References 26 publications

Identification and quantification of diffuse groundwater pollution in a mineralised watershed

Identification and quantification of diffuse groundwater pollution in a mineralised watershed

Application of using a boron tracer to evaluate groundwater contamination in the Quaternary limestone aquifer in the southern region of Okinawa Island, Japan

Comparison of DMA-80 and ICP-MS Combined with Closed-Vessel Microwave Digestion for the Determination of Mercury in Coal

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