Colorimetric determination of manganese(II) in natural and waste waters after preconcentration on a polymeric adsorbent

Басаргин, Н. Н.; Oskotskaya, E. R.; Gribanov, E. N.; Кузнецов, Е. В.

doi:10.1134/s1061934812010042

Cited by 4 publications

(2 citation statements)

References 2 publications

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“…For Mn(II) determination in the drinking water samples, the analytical characteristics of the proposed method were compared with the methods reported previously as shown in Table . The LOD of the proposed method was lower compared with the methods reported in the published literature.…”

Section: Resultsmentioning

confidence: 99%

Flow‐injection determination of manganese (II) using surfactant enhanced diperiodatonickelate (IV)‐rhodamine 6G chemiluminescence

et al. 2019

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Chemiluminescence (CL) of the rhodamine 6-G-diperiodatonickelate (IV) (Rh6-G-Ni(IV) complex) in the presence of Brij-35 was examined in an alkaline medium and implemented using flow-injection analysis to analyze Mn(II) in natural waters. Brij-35 was identified as the surfactant of choice that enhanced CL intensity by about 62% of the reaction. The calibration curves were linear in the range 1.7 × 10 −3 -0.2 (0.9990, n = 7) and 8.0 × 10 −4 -0.1 μg ml −1 (0.9990, n = 7) with limits of detection (LODs) (S:N = 3) of 5.0 × 10 −4 and 2.4 × 10 −4 μg ml −1 without and with using an in-line 8hydroxyquinoline (8-HQ) resin mini-column, respectively. The sample throughput and relative standard deviation were 200 h −1 and 1.7-2.2% in the range studied respectively. Mn(II) concentrations in certified reference materials and natural water samples was successfully determined. A brief discussion about the possible CL reaction mechanism is also given. In addition, analysis of V(III), Cr(III) and Fe(II) was also performed without and with using an in-line 8-HQ column and selective elution of each metal ion was achieved by adjusting the pH of the sample carrier stream with aqueous HCl solution.

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Section: Resultsmentioning

confidence: 99%

Flow‐injection determination of manganese (II) using surfactant enhanced diperiodatonickelate (IV)‐rhodamine 6G chemiluminescence

et al. 2019

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“…Various batch‐ and flow‐based analytical methods have been reported for the determination of manganese in natural and waste waters, soil, sediments, food, plants, pharmacological preparations, fertilizers, certified and other naturally occurring materials. These include colorimetry/spectrophotometry , flame and electrothermal atomic absorption spectrometry , inductively coupled plasma‐mass spectrometry , potentiometry , and cathodic stripping voltammetry . These methods often suffer from a variety of disadvantages: they could be sophisticated or time consuming, lack sensitivity or require expensive instrumentation.…”

Section: Introductionmentioning

confidence: 99%

Determination of manganese‐ and manganese‐containing fungicides with lucigenin–Tween‐20‐enhanced chemiluminescence detection

2015

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A flow-injection (FI) method is reported for the determination of Mn(II), maneb and mancozeb fungicides based on the catalytic effect of Mn(II) on the oxidation of lucigenin and dissolved oxygen in a basic solution. The Tween-20 surfactant has been reported for first time to enhance lucigenin chemiluminescence (CL) intensity in the presence of Mn(II) (53%) and maneb and mancozeb (89%). The calibration graphs were linear in the concentration range of 0.001-1.5 mg L(-1) (R(2) = 0.9982 (n = 11) with a limit of detection (S/N = 3) of 0.1 µg L(-1) for Mn(II) and 0.01-3.0 mg L(-1) [R(2) = 0.9989 and R(2) = 0.9992 (n = 6)] with a limit of detection (S/N =3) of 1.0 µg L(-1) for maneb and mancozeb respectively. Injection throughputs of 90 and 120 h(-1) for Mn(II) and maneb and mancozeb respectively, and relative standard deviations of 1.0-3.4% were obtained in the concentration range studied. The experimental variables, e.g., reagents concentrations, flow rates, sample volume, and photomultiplier tube voltage, were optimized and potential interferences were investigated. The analysis of Mn(II) in river water reference materials (SLRS-4 and SLRS-5) showed good agreement with the certified values incorporating an on-line 8-hydroxyquinoline chelating column in the manifold for removing interfering metal ions. Recoveries for maneb and mancozeb were in the range of 92 ± 5 to 104 ± 3% and 91 ± 2 to 100 ± 4% (n = 3) respectively. The effect of 30 other pesticides (fungicides, herbicides and insecticides) was also examined in the lucigenin-Tween-20 CL system.

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Capabilities and prospects of the development of a chromaticity method in analytical chemistry

2015

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Colorimetric determination of manganese(II) in natural and waste waters after preconcentration on a polymeric adsorbent

Cited by 4 publications

References 2 publications

Flow‐injection determination of manganese (II) using surfactant enhanced diperiodatonickelate (IV)‐rhodamine 6G chemiluminescence

Flow‐injection determination of manganese (II) using surfactant enhanced diperiodatonickelate (IV)‐rhodamine 6G chemiluminescence

Determination of manganese‐ and manganese‐containing fungicides with lucigenin–Tween‐20‐enhanced chemiluminescence detection

Capabilities and prospects of the development of a chromaticity method in analytical chemistry

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