Validation of Ion Chromatographic Method for Determination of Standard Inorganic Anions in Treated and Untreated Drinking Water

Ivanova, Veronika; Surleva, Andriana; Koleva, Boryana

doi:10.1088/1757-899x/374/1/012053

Cited by 5 publications

(3 citation statements)

References 14 publications

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“…Obtained results served to estimate the following parameters: limit of detection (LOD), limit of quantification (LOQ), standard deviation (SD), relative standard deviation (RSD) and regression coefficient (Table 1). Methodology of LOD and LOQ assessment was based on Approach 1 (described elsewhere) [19]. LOD and LOQ were estimated using calculations based on 3.3 or 10 times standard deviation of the lower concentration as obtained from standard curve, respectively.…”

Section: Ion Chromatography Analysismentioning

confidence: 99%

Studies on perchlorate levels in powdered infant formulas available on the Polish market

Niziński

Wiśniewska

Kulinowska

et al. 2021

Current Issues in Pharmacy and Medical Sciences

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Perchlorate has been acknowledged as a health threat due to its ability to interfere with iodine uptake by the thyroid gland. Infants and developing newborns have been considered as the most vulnerable groups to the perchlorate toxicity. A crucial source of perchlorate ingestion are powdered infant formulas. This study was designed to measure perchlorate content in thirty-one powdered infant formulas available on the Polish market. A rapid and sensitive ion chromatography method – conductivity cell detection – was applied to determine ClO4 – content. Limit of detection (0.150 µg/L) and limit of quantification (0.450 µg/L) were assessed. Collected samples were classified by the age of consumers: first stage, until the baby is six months old and follow-on formula for older children. Geometric mean of perchlorate concentration of 1.041 µg/L and 0.857 µg/L in the groups of the first stage and follow-on formulas were calculated, respectively. A health risk assessment revealed that the Tolerable Daily Intake (TDI) for perchlorate (0.3 µg/kg body weight/day) was exceeded only in a few milk samples. The findings suggest that perchlorate contamination of powdered infant formulas may not to be an immediate health issue, yet testing for ClO4 – should continuously be conducted. To the best of our knowledge, this is the first study concerning perchlorate content in infant formulas in Poland.

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Section: Ion Chromatography Analysismentioning

confidence: 99%

Studies on perchlorate levels in powdered infant formulas available on the Polish market

Niziński

Wiśniewska

Kulinowska

et al. 2021

Current Issues in Pharmacy and Medical Sciences

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“…The obtained results are presented in Table 6. LOD and LOQ for standard ions were determined previously using the above described calculation strategies [22]. LODs of F -, Cl -, NO3and SO4 2ranged between 0.002 and 0.004 mg/L and LOQs -between 0.013 and 0.049 mg/L.…”

Section: Linearitymentioning

confidence: 99%

Determination of Bromide and Bromate Ions in the Presence of Standard Ions by Suppressed Ion Chromatography

Surleva

Ivanova

2019

MSF

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An ion chromatographic method for determination of bromide and bromate in the presence of standard anions in drinking water was described. The method was based on separation on Metrosep A Supp 7-250 (250 x 4 mm) column with 3.6 mmol/L Na2CO3 as eluent and conductivity detection after sequential chemical and carbon dioxide suppression. The influence of flow rate and column temperature was studied and optimal experimental conditions for simultaneous determination of eight anions were chosen. Analytical characteristics of the ion chromatographic method were assessed for simultaneous determination of bromide, bromate, fluoride, chloride, nitrate, nitrite, phosphate and sulfate. The calibration curves were linear (r2=1, N=7) in the concentration ranges: 0.4-12 mg/L BrO3- and 0.3-11 mg/L Br-. Recovery test was performed on a spiked certified reference material for soft drinking water. The obtained recoveries for bromate and bromide were 96.0 and 101.0 %, respectively. The repeatability and intermediate precision were between 5.1 and 0.14 % (RSD) depending on the analytes concentration. The limits of detection were 20 μg/L BrO3- and 10 μg/L Br-

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“…Kromatografi ion adalah teknik analisis yang menawarkan banyak keunggulan dibandingkan metode tradisional untuk menentukan ion rutin dalam sampel air. Menurut V. Ivanova et al, kromatografi ion adalah metodologi yang cepat, menuntut volume sampel kecil, dan sesuai tujuan untuk menganalisis sampel permukaan, tanah, dan air minum [8]. Metode ini memberikan cara yang andal dan efisien untuk mendeteksi anion anorganik dalam sampel air dan telah e-ISSN : 2339-1197 Departemen Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam Page 18 Universitas Negeri Padang (UNP) Jl.…”

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Pengukuran Anion Anorganik Secara Simultan dalam Sampel Air Tanah dan Air Ledeng Menggunakan Kromatografi Ion

Amin,

Oktavia

2023

Periodic

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Ion chromatography is an advanced and highly sensitive form of ion exchange chromatography that can effectively detect ion species, whether organic or inorganic ions. This research study utilized ion chromatography with a suppressed conductivity detection system to separate and measure the concentration of fluoride, chloride, nitrite, bromide, nitrate, phosphate, and sulfate ions in groundwater and tap water samples. The eluent solution used in this separation contained 6.0 mmol/L Na2CO3 and 0.25 mmol/L NaHCO3, which was crucial in ensuring the accuracy and selectivity of the detections. The samples were collected in 3 sub-districts in Ternate City, and the study's findings shed light on the water quality in the area.

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Validation of Ion Chromatographic Method for Determination of Standard Inorganic Anions in Treated and Untreated Drinking Water

Cited by 5 publications

References 14 publications

Studies on perchlorate levels in powdered infant formulas available on the Polish market

Studies on perchlorate levels in powdered infant formulas available on the Polish market

Determination of Bromide and Bromate Ions in the Presence of Standard Ions by Suppressed Ion Chromatography

Pengukuran Anion Anorganik Secara Simultan dalam Sampel Air Tanah dan Air Ledeng Menggunakan Kromatografi Ion

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