Extraction and analysis of hydrosoluble chlorine and its stable isotopic composition in soil using thermal ionization mass spectrometry

Liu, Lihua; Mu, Shanliang; Leng, Peng; Dong, Yan; Xu, Qingcai; Sun, Aide

doi:10.1016/j.chemgeo.2020.119993

Cited by 6 publications

(3 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A novel extraction method allowed 186 quantitative isolation of water-soluble Cl from soil for measurement of δ 37 Cl values by TIMS. Soil was dried, sieved, ground, treated with H 2 O 2 to decompose OM and then extracted with high purity water.…”

Section: Analysis Of Soils Plants and Related Materialsmentioning

confidence: 99%

Atomic spectrometry update – a review of advances in environmental analysis

Bacon

Butler

Cairns

et al. 2022

J. Anal. At. Spectrom.

View full text Add to dashboard Cite

show abstract

Section: Analysis Of Soils Plants and Related Materialsmentioning

confidence: 99%

Atomic spectrometry update – a review of advances in environmental analysis

Bacon

Butler

Cairns

et al. 2022

J. Anal. At. Spectrom.

View full text Add to dashboard Cite

show abstract

“…Generally, the sample preparation of heavier elements is based on ion exchange resin, which is an off-line process, and this process need be performed in a ultra clean laboratory [6,7]. The requirements of the preparation process are very strict; incomplete adsorption, insufficient elution, and careless introduction of ambient impurities will lead to the failure of the process [2].…”

Section: Introductionmentioning

confidence: 99%

A New Sample Processing Protocol for Separation and Purification Enabling Precise Analysis of Various Non-Traditional Isotopes in Geological Samples with Low Concentrations

Gui,

Zou

2023

Separations

View full text Add to dashboard Cite

Many non-traditional isotopes, such as chlorine, magnesium, calcium, etc., are widely used as groundwater tracers. A new sample processing protocol of purification and concentration for isotopic analysis is presented to overcome many of the major drawbacks of existing methods. Contemporary sample preparation often requires several laborious off-line procedures in a ultra clean laboratory prior to instrumental determination; additionally, interference ions in real samples are difficult to completely remove, especially when the concentration of those ions is equal to that of the target ions. The new protocol includes the following steps: (i) one-step purification using a newly developed isotopic preparative chromatograph (IPC) with a background suppressed mode to obtain extremely pure components that only have target ions and H2O; (ii) enrichment of the collected pure solution from the previous step using a newly developed ultra clean concentrator filled with high purity nitrogen; (iii) transforming the enriched target ion into suitable speciation inside the ultra clean concentrator; (iv) finally, sending the enriched solutions to a multi-collector inductively coupled-plasma mass-spectrometer (MC-ICP-MS) or thermal ionization mass spectrometer (TIMS). The present method was validated using certified reference materials and real samples for both chlorine and magnesium; the precision of chlorine ratio value was generally below 0.22‰ and that of Mg was below 0.12‰. This processing protocol provides a potential method for isotope sample preparation and analysis in a small number of geological samples with low concentrations of many other elements or compounds such as nitrate, sulfate, lithium, calcium, strontium, etc.

show abstract

“…The environmental behavior of stable nuclide chlorine in soil has become a hot topic of research in recent years with increasing interest in hazard assessment of the radionuclide 36 Cl [13,14]. Chloride ion in soil coexists in soil solutions and is transported by water flux due to its high solubility [15,16]. At a certain temperature, the diffusion coefficient of chlorine increases with the incensement of soil moisture [17].…”

Section: Introductionmentioning

confidence: 99%

Effect of Soil Aggregate Separation Methods on the Occurrence Characteristics of Typical Pollutants

et al. 2022

View full text Add to dashboard Cite

To study the distribution characteristics of typical pollutants in soil aggregates using different sieving methods, urban and arable soils were collected from Beijing and separated to different sizes by dry and wet sieving methods, to analyze present concentrations of inorganic chlorine and nine typical heavy metals (Cr, Mn, Co, Ni, Cu, Zn, Cd, As, and Pb). Results revealed that the distribution of wet-sieved aggregates was biased towards microaggregates (<250 μm), while the contrary result was found for the dry sieving method. Inorganic chlorine was more likely to be enriched in <53 μm fractions attained by both sieving methods. However, the content of inorganic chlorine in wet-sieved aggregates was significantly lower than in those that were dry sieved, which means the water’s effect on soluble ions was more pronounced. Heavy metals in urban soils were preferentially enriched in microaggregates no matter what kind of sieving method was applied. As for Mn and As found in agricultural soils using the dry sieving method, they were preferentially enriched in the fractions of 1000–2000 μm and 250–1000 μm, while the other seven heavy metals were preferentially enriched in <53 μm fractions, indicating that Mn and As in agricultural soils were easily transferred in aggregates with different particle sizes. Samples with particle sizes <53 μm showed the highest distribution factors for all heavy metals when the wet sieving method was applied. The dry sieving method resulted in a higher mass loading of heavy metals in coarser fractions and lower proportions in finer fractions. Results of a potential ecological risk analysis showed that the ecological risk (Eri) value of Cd found in aggregates by the different sieving methods was significantly different (p < 0.05). The findings suggest that different sieving methods could result in different occurrence patterns of pollutants in the soil aggregates of different land use types.

show abstract

Extraction and analysis of hydrosoluble chlorine and its stable isotopic composition in soil using thermal ionization mass spectrometry

Cited by 6 publications

References 45 publications

Atomic spectrometry update – a review of advances in environmental analysis

Atomic spectrometry update – a review of advances in environmental analysis

A New Sample Processing Protocol for Separation and Purification Enabling Precise Analysis of Various Non-Traditional Isotopes in Geological Samples with Low Concentrations

Effect of Soil Aggregate Separation Methods on the Occurrence Characteristics of Typical Pollutants

Contact Info

Product

Resources

About