Analysis of EDTA and DTPA

Sillanpää, Mika; Sihvonen, Marja-Liisa

doi:10.1016/s0039-9140(97)00059-3

Cited by 53 publications

(16 citation statements)

References 102 publications

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“…Capillary electrophoresis (CE) enables simultaneous detection of EDTA and its metal complexes in aqueous solutions [28]. CE measurements (Beckman Coulter, USA) were conducted to determine the amount of free EDTA in the solution after adsorption experiments [29].…”

Section: Capillary Electrophoresis Measurementsmentioning

confidence: 99%

Capture of Co(II) from its aqueous EDTA-chelate by DTPA-modified silica gel and chitosan

Repo

Malinen

Koivula

et al. 2011

Journal of Hazardous Materials

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Section: Capillary Electrophoresis Measurementsmentioning

confidence: 99%

Capture of Co(II) from its aqueous EDTA-chelate by DTPA-modified silica gel and chitosan

Repo

Malinen

Koivula

et al. 2011

Journal of Hazardous Materials

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“…Historically, different methods have been used for APCA determination, e.g. titrimetric, liquid/gas-chromatographic [16,18,25], potentiometric [16,26], capillary electrophoretic [27] and spectrophotometric methods [28]. High-performance liquid-chromatography (HPLC) has been proven to be a reliable method for APCA analysis in complex sample matrices, owing to its high selectivity and sensitivity [16,18,25,[29][30][31].…”

Section: Introductionmentioning

confidence: 99%

Quantification of common aminopolycarboxylic acids in trench leachate from the Low Level Waste Repository

O’Hanlon

Chapman

Taylor³

et al. 2019

J Radioanal Nucl Chem

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The aminopolycarboxylic acids (APCAs), ethylenediaminetetraacetic acid (EDTA), diethylenetriaminepentaacetic acid (DTPA) and nitrilotriacetic acid (NTA), are used as decontamination agents throughout the nuclear industry; therefore, APCAs are often found in radioactive waste. Limits of acceptance on APCAs are imposed on wastes consigned to the Low Level Waste Repository (LLWR) because, when present in the waste, the ligands have the potential to mobilise otherwise surface-bound or solid radionuclides, making them available for transport to groundwater and ultimately to the bio-sphere. A selective and sensitive methodology to detect and quantify these ligands in a range of complex matrices is advantageous in supporting waste acceptance processes. A reversed-phase high-performance liquid chromatography (HPLC) procedure has been applied for quantification of EDTA, DTPA and NTA in their Fe(III)-complex form. Method validation results show linearity (r 2 > 0.999), precision (intra/inter-day %RSD ≤ 10%), accuracy (recovery = 100 ± 3%), sensitivity (minimum limits of detection = 0.31, 0.38 and 4.3 μM for EDTA, DTPA and NTA, respectively) and selectivity (simultaneous determination of the three APCA complexes achieved with baseline resolution) for Fe(III)-APCAs in aqueous solution. Chromatographic peak overlap is observed for samples containing Fe(III)-and Co(III)-EDTA; two deconvolution methods (2D least-squares fitting vs. PARAFAC) were applied to resolve the peaks and the performances compared. The optimised HPLC method was applied to trench leachate samples from the LLWR site. EDTA was detected with 0.4 μM < concentrations < 1 μM in samples from four of the six sampling locations tested. The levels are not considered sufficient to increase the risk of radionuclide mobilisation. The technique is considered to be robust and will be considered further in informing limits of acceptance on APCAs.

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“…Various analytical methods have been proposed for the determination of EDTA in a wide variety of sample matrices (Sillanpaa and Sihvonen 1997). They include spectrophotometry (Parkash et al 1998;Hamano et al 1993), electrochemistry (Voulgaropoulos and Tzivanakis 1992), colorimetry (Hamano, Mistuhashi, and Tanaka 1985), ion chromatography with suppressed conductometry (Krokidis, Megoulas, and Koupparis 2005) and capillary electrophoresis (Pozdniakova et al 1999).…”

Section: Introductionmentioning

confidence: 99%

Flow Injection Chemiluminescence Determination of EDTA in Canned Food

Kanwal¹,

Fu²

2011

Analytical Letters

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In this study, a flow injection chemiluminescent method was developed for determination of ethylenediaminetetraacetate (EDTA). Determination of EDTA was achieved via the quenching of chemiluminescent (CL) signal of KMnO 4 -Na 2 SO 3 -H 2 O 2 system, in which SO Ã 2 was found to be the main emitter. Under optimum analytical conditions, a detection limit of 4 Â 10 À13 M (3r) and linear dynamic range of 2 Â 10 À12 -5 Â 10 À6 M was obtained for EDTA. Relative standard deviation for 1 Â 10 À9 M EDTA was 1.5% (n ¼ 11). Proposed method is simple, rapid with high sensitivity, and has wide linear range. Method was applied to the determination of EDTA in canned foods with satisfactory results.

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Analysis of EDTA and DTPA

Cited by 53 publications

References 102 publications

Capture of Co(II) from its aqueous EDTA-chelate by DTPA-modified silica gel and chitosan

Capture of Co(II) from its aqueous EDTA-chelate by DTPA-modified silica gel and chitosan

Quantification of common aminopolycarboxylic acids in trench leachate from the Low Level Waste Repository

Flow Injection Chemiluminescence Determination of EDTA in Canned Food

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