Cellulose fibrous sorbents with conformationally flexible aminocarboxylic groups for preconcentration of metals

Tsysin, G. I.; Михура, И. В.; Formanovsky, A. A.; Zolotov, Yury A.

doi:10.1007/bf01245200

Cited by 22 publications

(8 citation statements)

References 10 publications

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“…The concentrations of Mn and Fe were determined using flow injection analysis (Tecator™ FIAStar 5010) and colorimetric detection following kinetic oxidation of N,N‐Diethylaniline by potassium periodate, catalyzed by Mn [ Kolotyrkina et al , 1991] and the oxidation of N,N'‐Dimethyl‐p‐phenylendiamine by hydrogen peroxide, catalyzed by Fe [ Kolotyrkina et al , 1995]. For low concentrations of Mn, on‐line preconcentration using DETATA (diethylentriaminetetraacetic acid) was employed [ Tsysin et al , 1991]. The detection limit for Mn was 0.04 nmol/L, the operational range 0.2 nmol/L to 400 nmol/L, and the R.S.D.…”

Section: Methodsmentioning

confidence: 99%

A decade of exploring a submarine intraplate volcano: Hydrothermal manganese and iron at Lō'ihi volcano, Hawai'i

Malahoff

Kolotyrkina

Midson

et al. 2006

Geochem Geophys Geosyst

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[1] Decadal time series observations of hydrothermal fluid emissions from Lō'ihi volcano were initiated in 1992 using a combination of submersible and shipboard sampling strategies. Magmatic-tectonic processes associated with a spectacular seismic event in July-August 1996 led to the collapse of Pele's Vents (31°C) near the volcano summit into a new pit crater (Pele's Pit) inundated by high-temperature (T max = 198°C) focused and lower-temperature (<95°C) diffuse fluid discharge. Variations in the concentrations and relative abundances of vented Fe and Mn characterize the precollapse, summit collapse, and postcollapse periods. The precollapse plume emanating from Pele's Vents had a low rise height ($35 m) and concentration intensity (<5 nmol/L TDMn, 70 nmol/L TDFe, $1.8 km distant) and dispersed to the southwest. Plumes coeval with the 1996 summit collapse were characterized by extreme metal concentrations within Pele's Pit (up to $10,000 nmol/L DMn and 400,000 nmol/L TDFe) and nearby East Pit ($34,000 nmol/L DMn and 120,000 nmol/L TDFe). An intense hydrothermal plume dispersed predominantly to the southwest of the several hundred meter deep pits with concentration anomalies as high as 236 nmol/L DMn and 3,800 nmol/L TDFe measured 9 km distant. Iron and Mn concentrations within the pits decreased >30-to 200-fold $1.5 months postcollapse and, during the following year, decreased a further twofold to threefold at Pele's Pit and $30-fold at East Pit. While a steady concentration of $400 nmol/L TDFe prevailed throughout the remaining years of this study at Pele's Pit, a gradual and threefold decrease in the concentration of DMn to about 15 nmol/L was observed. High-temperature fluids (128-198°C 1997-1999, $90°C 2001) venting simultaneously from different orifices within Pele's Pit had distinguishable Fe/Mn ratios that can be attributed to different subseafloor origins. Fe/Mn ratios characteristic of fluids moderated by high-temperature water-rock reaction had low values in 1997-1998 (1.6 ± 0.7), increasing to about 7 in 1999. Fluids moderated by magmatic degassing of CO 2 had much higher Fe/Mn ratios, increasing from 24 ± 15 in 1997-1998 to 50 in 1999 and 63-87 in 2001. Fe/Mn values of dispersing plumes at Lō'ihi reflect an admixture of these sources and a relative Fe abundance that is consistently high compared to mid-ocean ridge systems. The pulsed injection of Mn and Fe into the surrounding ocean associated with the 1996 tectonic-magmatic event at Lō'ihi was massive. Our decadal observations confirm that Mn and Fe are useful markers of the magnitude and evolution of the effects of magmatic perturbation on hydrothermal systems influenced by chronic magmatic degassing.

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Section: Methodsmentioning

confidence: 99%

A decade of exploring a submarine intraplate volcano: Hydrothermal manganese and iron at Lō'ihi volcano, Hawai'i

Malahoff

Kolotyrkina

Midson

et al. 2006

Geochem Geophys Geosyst

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“…The chelating sorbent was synthesized as described previously by chemical attachment of aminocarboxylic (diethylenetriaminetetraacetate, DETATA) groups to cellulose filterpaper. 11 The filter-paper was 2.5 cm in diameter.…”

Section: Reagents Solutions and Apparatusmentioning

confidence: 99%

Sorption–Catalytic Determination of Manganese Directly on a Paper-based Chelating Sorbent

Beklemishev

Stoyan²,

Dolmanova³

1997

Analyst

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A hybrid technique based on a catalytic reaction carried out on the surface of a paper-based sorbent is proposed. It is shown that MnII exhibits its catalytic action in the oxidation of 3,3',5,5'-tetramethylbenzidine with periodate in aqueous solution as well as on filter-paper with or without attached diethylenetriaminetetraacetate (DETATA) groups. Optimum conditions differ for the reaction in solution and on filter-paper. For equal catalyst concentrations, higher initial reaction rates are attainable on the filter-papers. Preconcentration of manganese on the DETATA sorbent combined with the subsequent catalytic reaction improves the selectivity, reduces the limit of determination down to 5 x 10(-6) mg l-1 (as compared with 6 x 10(-5) mg l-1 in solution) and expands the linear range by an order of magnitude (to 5 x 10(-6)-2.5 x 10(-3) mg l-1). The precision of manganese determination on the sorbent is high (the RSDs are < or = 5% for > or = 6 x 10(-4) micrograms Mn). Samples of tap and river water were analyzed by use of the proposed sorption-catalytic technique. A rapid procedure for the determination of manganese with visual detection was also developed.

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“…Sorption of Cu (I), Zn (2), Cd (3); colority of 250" (Pt-Co scale);metals sorption in the absence offulvic acids(4). affecting on the heavy metal sorption on DETATA-filters are dissolved organic substances of natural waters.…”

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confidence: 99%

Detata-Filters for Metal Preconcentration and Multielement Determination in Natural Waters

Varshal¹,

Velyukhanova

Pavlutskaya

et al. 1994

International Journal of Environmental Analytical Chemistry

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Cellulose fibrous sorbents with conformationally flexible aminocarboxylic groups for preconcentration of metals

Cited by 22 publications

References 10 publications

A decade of exploring a submarine intraplate volcano: Hydrothermal manganese and iron at Lō'ihi volcano, Hawai'i

A decade of exploring a submarine intraplate volcano: Hydrothermal manganese and iron at Lō'ihi volcano, Hawai'i

Sorption–Catalytic Determination of Manganese Directly on a Paper-based Chelating Sorbent

Detata-Filters for Metal Preconcentration and Multielement Determination in Natural Waters

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