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100 _a20220315a2015 k y0engy50 ba
101 0 _aeng
135 _adrgn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aInvestigations into the Speciationof Inorganic Arsenicin Weakly Alkaline Medium by Voltammetry
_fE. A. Zakharova, G. N. Noskova, M. L. Moskaleva [et al.]
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: 42 tit.]
330 _aThe speciation of inorganic forms of arsenic was studied using anodic stripping voltammetry (ASV) at a gold microelectrode in conjunction with photoreduction of As(V). Sodium sulfite (0.1 M) and ammonium buffer (pH≥9.5) were selected as both background electrolyte and photo-reductive reagent. Oxygen was removed by radical chain reactions with sulfite. The proposed speciation method was validated for mixtures of arsenic As(III/V) at concentrations up to 1 mg L−1. The calculated LOD of As(III/V) was 0.06 µg L−1 (3σ, tdep 40 s). Any interference from nitrate anions present at up to millimolar concentration was minimized by their photoreduction.
333 _aРежим доступа: по договору с организацией-держателем ресурса
461 _tElectroanalysis
463 _tVol. 27, iss. 3
_v[P. 890–901]
_d2015
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aмышьяк
610 1 _aвольтамперометрия
610 1 _aфотовосстановление
610 1 _aнеорганические формы
701 1 _aZakharova
_bE. A.
_cchemist
_csenior research fellow at the Tomsk Polytechnic University, candidate of chemical Sciences
_f1938-
_gElsa Arminana
_2stltpush
_3(RuTPU)RU\TPU\pers\33332
701 1 _aNoskova
_bG. N.
_gGalina Nikolaevna
701 1 _aMoskaleva
_bM. L.
_gMarina Leonidovna
701 1 _aElesova
_bE. E.
_gElena Evgenjevna
701 1 _aWildgoose
_bG. G.
_gGregory
712 0 2 _aНациональный исследовательский Томский политехнический университет (ТПУ)
_bИнститут природных ресурсов (ИПР)
_bКафедра гидрогеологии, инженерной геологии и гидрогеоэкологии (ГИГЭ)
_h100
_2stltpush
_3(RuTPU)RU\TPU\col\18664
801 2 _aRU
_b63413507
_c20220315
_gRCR
856 4 _uhttps://doi.org/10.1002/elan.201500034
942 _cCF