Modern methods of autoclave sample preparation in chemical analysis of substances and materials

Karpov, Yu. A.; Орлова, В. А.

doi:10.1134/s0020168508140057

Cited by 12 publications

(6 citation statements)

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“…Calibration curves were plotted using multi-element and single-element standard solutions (High-Purity Standards, North Charleston, SC, USA). The analytical procedures for elemental analysis are detailed in [47]; those for an autoclave digestion system are described in [48,49].…”

Section: Methodsmentioning

confidence: 99%

Multi-Element Composition of Diatom Chaetoceros spp. from Natural Phytoplankton Assemblages of the Russian Arctic Seas

Лобус

Kulikovskiy

Maltsev

2021

Biology

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Data on the elemental composition of the diatom Chaetoceros spp. from natural phytoplankton communities of Arctic marine ecosystems are presented for the first time. Samples were collected during the 69th cruise (22 August–26 September 2017) of the R/V Akademik Mstislav Keldysh in the Kara, Laptev, and East Siberian Seas. The multi-element composition of the diatom microalgae was studied by ICP-AES and ICP-MS methods. The contents of major (Na, Mg, Al, Si, P, S, K and Ca), trace (Li, Be, B, Ti, V, Cr, Mn, Co, Ni, Cu, Zn, Ga, As, Se, Rb, Sr, Mo, Ag, Cd, Sn, Sb, Cs, Ba, Hg, Tl, Pb, Bi, Th and U) and rare earth (Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu) elements varied greatly, which was probably associated with the peculiarities of the functional state and mineral nutrition of phytoplankton in the autumn period. Biogenic silicon was the dominant component of the chemical composition of Chaetoceros spp., averaging 19.10 ± 0.58% of dry weight (DW). Other significant macronutrients were alkaline (Na and K) and alkaline earth (Ca and Mg) metals as well as biogenic (S and P) and essential (Al and Fe) elements. Their total contents varied from 1.26 to 2.72% DW, averaging 2.07 ± 0.43% DW. The Al:Si ratio for natural assemblages of Chaetoceros spp. of the shelf seas of the Arctic Ocean was 5.8 × 10−3. The total concentrations of trace and rare earth elements on average were 654.42 ± 120.07 and 4.14 ± 1.37 μg g−1 DW, respectively. We summarize the scarce data on the average chemical composition of marine and oceanic phytoplankton and discuss the limitations and approaches of such studies. We conclude on the lack of data and the need for further targeted studies on this issue.

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Section: Methodsmentioning

confidence: 99%

Multi-Element Composition of Diatom Chaetoceros spp. from Natural Phytoplankton Assemblages of the Russian Arctic Seas

Лобус

Kulikovskiy

Maltsev

2021

Biology

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“…After cooling, 1 mL of HNO 3 and 1 mL of HCl (Hydrochloric acid faming 37% GR, ISP, Merck) were added to each sample. The reaction chambers were sealed and kept at a temperature of 160 °C for 60 min [5] . The Hg content was determined in separately prepared samples.…”

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

“…The Hg content was determined in separately prepared samples. For this, a 50 mg portion was treated for 30 min at 96 °C with a mixture of HCl + HNO 3 (3:1 by volume) in an open system [5] . After cooling, all resulting solutions were transferred to polyethylene Eppendorf cups (Labcon, USA and Deltalab, Spain) and 0.2 mL of 10 mg L −1 In solution was added, which was used as an internal standard in mass spectral measurements.…”

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

Dataset on the abundance, enrichment and partitioning of chemical elements between the filtered, particulate and sedimentary phases in the Cai River estuary (South China Sea)

2021

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This data article refers to the paper entitled “Multi-element signatures in solid and solution phases in a tropical mixing zone: A case study in the Cai River estuary, Vietnam” (Koukina et al., 2021), which considers the fate of major, trace, and rare-earth elements transported through the estuarine geochemical filter of the typical tropical estuary. The present work contributes to the local geochemical baselines as a background for long-term monitoring of potential hazardous elements. Therefore, the dataset covers the abundance, enrichment, and partitioning parameters of 53 chemical elements in the water, suspended particulate matter, and bottom sediment samples collected in the Cai River estuary and the adjacent part of the Nha Trang Bay (South China Sea) between July and August 2013. The total filtered, particulate, and sedimentary elements were determined by atomic emission and inductively coupled plasma mass spectrometry (ICP-AES; ICP-MS). The environmental indices (the enrichment factor and geoaccumulation index) and partition coefficients were calculated from the total element contents. The data provided is essential for the comprehensive environmental assessment of the anthropogenic impact on the coastal ecosystem as well as for the evaluation and modelling of element fractionation and mobility at the estuarine gradients.

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“…Various _________________________ *corresponding author. Email: troeglasovaa@mail.ru methods of expansion the samples of different nature under microwave heating are described in the literature [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Atomic-Emission Determination of Rhenium in Anthropogenic Raw Materials of Steel Production

et al. 2011

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Modern methods of autoclave sample preparation in chemical analysis of substances and materials

Cited by 12 publications

References 1 publication

Multi-Element Composition of Diatom Chaetoceros spp. from Natural Phytoplankton Assemblages of the Russian Arctic Seas

Multi-Element Composition of Diatom Chaetoceros spp. from Natural Phytoplankton Assemblages of the Russian Arctic Seas

Dataset on the abundance, enrichment and partitioning of chemical elements between the filtered, particulate and sedimentary phases in the Cai River estuary (South China Sea)

Atomic-Emission Determination of Rhenium in Anthropogenic Raw Materials of Steel Production

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