Determination of Trace Hydrazine in Environmental Water Samples by in situ Solid Phase Extraction

Kato, Toshikuni; Sugahara, Shogo; Kajitani, Takahiro; Senga, Yukiko; Egawa, Michiko; Kamiya, Hiroshi; Seike, Yasushi

doi:10.2116/analsci.33.487

Cited by 10 publications

(8 citation statements)

References 15 publications

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“…Upon considering the impact of analytical procedures to the environment, sample preparation was found to be the most challenging step regarding the green parameters of a method. Solid-phase extraction was commonly used in the extraction of organic [2][3][4][5][6] and inorganic [7][8][9] contaminants from aqueous samples. It is also considered to be the main source of laboratory chemical waste.…”

Section: Introductionmentioning

confidence: 99%

Application of D-Limonene as a Bio-based Solvent in Low DensityDispersive Liquid?Liquid Microextraction of Acidic Drugs from Aqueous Samples

El-Deen

Shimizu

2019

ANAL. SCI.

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This study deals with the application of different monoterpenes as relatively green bio-based solvents for low densitydispersive liquid-liquid microextraction (LD-DLLME) of different non-steroidal anti-inflammatory drugs (NSAIDs) from aqueous samples in comparison with conventional halogenated solvents. Results indicated that D-limonene could extract the hydrophobic compounds with higher %recovery compared with other bio-based and halogenated solvents. The LD-DLLME procedure was optimized by applying one-factor-at-a-time (OFAT) followed by central composite face-centered design (CCF) of the response surface methodology (RSM). Under the optimal conditions, the method exhibited good linearity with r ≥ 0.9950 with low LOD as well as LOQ levels in the range of 0.11 to 0.81 and 0.36 to 2.69 ng/mL, respectively. The method was efficiently applied to a variety of real aqueous samples. Finally, the green aspect of our procedure was compared with some reported methods using two green metric tools.

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Section: Introductionmentioning

confidence: 99%

Application of D-Limonene as a Bio-based Solvent in Low DensityDispersive Liquid?Liquid Microextraction of Acidic Drugs from Aqueous Samples

El-Deen

Shimizu

2019

ANAL. SCI.

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“…Importantly, plastic syringes are not expensive and provide both a closed space and a facile sample loading system, with SPE techniques being well suited for simple in situ sampling and sample treatment, not requiring any complicated equipment. 12,13 BCS and ethylenediaminetetraacetic acid (EDTA) were selected as a Cu(I)-selective binding agent and a Cu(II) masking agent, respectively. The contents of the extracted hydrophobic Cu fraction and Cu(I)-BCS were determined by ICP-MS, and the developed method was used to analyze real samples collected in Tokushima prefecture, Japan.…”

Section: Introductionmentioning

confidence: 99%

Copper Speciation for Natural Water by On-site Sample Treatment/Solid-phase Extraction/Inductively Coupled Plasma Mass Spectrometry

et al. 2018

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Herein, we determined the contents of Cu(I), Cu(II), and hydrophobic Cu in natural water using on-site sample treatment, solid-phase extraction (SPE), and inductively coupled plasma mass spectrometry (ICP-MS) analysis. To prevent Cu species changes in the sampling, filtering and preconditioning steps were performed in a closed system using plastic syringes and a disposable membrane filter. Bathocuproin disulfonate (BCS) and ethylenediaminetetraacetic acid (EDTA) were selected as a Cu(I)-selective complexing agent and a Cu(II) masking agent, respectively, whereas ascorbic acid (AA) was used to reduce Cu(II) to Cu(I). Pre-conditioned samples were passed through a hydrophobic SPE column, and the retained Cu species were eluted with ethanol. Subsequently, the eluate was concentrated, and the residue was re-dissolved in 2 M HNO and subjected to ICP-MS analysis. No artificial changes of Cu(I) and Cu(II) species were observed at any time, with the analytical detection limit of total Cu and the blank value equaling 0.0008 and 0.0025 μg kg, respectively. The developed method was applied to real estuarine, riverine, and seawater samples collected in Tokushima prefecture, Japan.

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“…We have developed simple and/or sensitive methods for the determination of chemical species, such as dissolved sulfide, [1][2][3] phosphate, 4,5 ammonia, 6,7 nitrite, 8 and hydrazine 9 in environmental water. Dissolved sulfide in environmental water is produced from microbial sulfate reduction.…”

Section: Introductionmentioning

confidence: 99%

“…However, the same solution at pH 7.8 is stable for 60 min at most, which indicates the ease of NH2OH oxidation with dissolved oxygen. 16,17 Because NH2OH is unstable, and is therefore present only in trace amounts, 9 there are no good quantitative methods applicable to aqueous environmental samples. Spectrophotometry 16,[19][20][21] and titration 22 are typical quantitative methods for NH2OH determination.…”

Section: Introductionmentioning

confidence: 99%

Sensitive Method for the Oxidation-determination of Trace Hydroxylamine in Environmental Water Using Hypochlorite Followed by Gas Chromatography

et al. 2017

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Determination of Trace Hydrazine in Environmental Water Samples by in situ Solid Phase Extraction

Cited by 10 publications

References 15 publications

Application of D-Limonene as a Bio-based Solvent in Low DensityDispersive Liquid?Liquid Microextraction of Acidic Drugs from Aqueous Samples

Application of D-Limonene as a Bio-based Solvent in Low DensityDispersive Liquid?Liquid Microextraction of Acidic Drugs from Aqueous Samples

Copper Speciation for Natural Water by On-site Sample Treatment/Solid-phase Extraction/Inductively Coupled Plasma Mass Spectrometry

Sensitive Method for the Oxidation-determination of Trace Hydroxylamine in Environmental Water Using Hypochlorite Followed by Gas Chromatography

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