Elimination of the argon chloride interference on arsenic speciation in inductively coupled plasma mass spectrometry using ion chromatography

Sheppard, Brenda S.; Shen, Wei-Lung; Caruso, Joseph A.; Heitkemper, Douglas T.; Fricke, Fred L.

doi:10.1039/ja9900500431

Cited by 67 publications

(19 citation statements)

References 9 publications

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“…9,11,13 Ion exchange chromatography is the preferred method for arsenic speciation since it can remove the argon chloride interference, separate species based on charge, and utilize a buffer that is compatible with the arsenic species of interest. 22,23 However, for most chromatographic columns the sample capacity is small, therefore the sample loaded has to be small volumes (mL's) and/ or diluted to lower concentrations.…”

Section: 2mentioning

confidence: 99%

Use of an inline dilution method to eliminate species interconversion for LC-ICP-MS based applications: focus on arsenic in urine

Quarles

Sullivan

Field

et al. 2018

J. Anal. At. Spectrom.

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Measuring arsenic in urine provides important information for clinical and epidemiological studies. While many researchers have studied ways to improve sample storage and understand why arsenic species undergo species interconversion, none have investigated inline dilution as a solution for arsenic speciation sample stability. A fast inline dilution method for AsB, DMA, MMA, As III, and As V was demonstrated in this work. Inline dilution calibrations from a single stock standard were shown to have good linearity and resulted in LODs in the single digit ppt range. Inline dilutions of 30X, 50X, and 100X resulted in 0.1 s to 1.1 s variation in retention time. Manual sample preparation resulted in poor recovery (61%) for As III over a 24 h time period, which was a direct result of As III converting to As V. Inline dilution of urine spiked with As III resulted in good recovery (101%) and reduced the species interconversion of As III to As V to $1%. Accuracy to NIST SRM 2669 (arsenic in frozen urine) was found to be within reported values for the five arsenic species tested for in this method.

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Section: 2mentioning

confidence: 99%

Use of an inline dilution method to eliminate species interconversion for LC-ICP-MS based applications: focus on arsenic in urine

Quarles

Sullivan

Field

et al. 2018

J. Anal. At. Spectrom.

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“…35 Cl) in the plasma which interferes with ( 75 As) [6]. Among the others, electrochemical methods of analysis are employed for As determination with the advantage of requiring less expensive instrumentation and being suitable for on-site control and decentralized monitoring.…”

Section: Armentioning

confidence: 99%

Electroanalysis of Trace Inorganic Arsenic with Gold Nanoelectrode Ensembles

Mardegan¹,

Scopece²,

Lamberti³

et al. 2012

Electroanalysis

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The results of a study on the determination of trace levels of arsenic with nanoelectrode ensembles (NEEs) are reported. In order to lower the detection limit and to increase the number of performable analysis for each NEE, the right choice of the supporting electrolyte concentration and electroanalytical parameters were optimized. The electrochemical behavior of As(III) at NEEs was studied at first by cyclic voltammetry, while trace concentrations of As(III) were determined by anodic stripping square wave voltammetry. The method is characterized by a detection limit as low as 5 ng/L (65 pM) after 3 min preconcentration at À0.4 V. Finally, NEEs were applied to trace As analysis in real samples such as certified seawater samples.

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“…The speciation of arsenic has been extensively studied by our group using anion-exchange HPLC (5,6,16 …”

Section: Hplc-icp-msmentioning

confidence: 99%

Trace metals speciation by HPLC with plasma source mass spectrometry detection.

Byrdy

Caruso

1995

Environ Health Perspect

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The analysis of environmental and biological samples often requires detection at the parts per billion (ppb) level. Plasma source mass spectrometry has potential as a method for the analysis and speciation of trace elements. This is due to the technique's highly selective nature and excellent sensitivity. In comparison to atomic emission detection, detection limits are usually two to three orders of magnitude lower for plasma MS determinations. Interfacing HPLC with plasma MS provides a means of separation that is necessary for speciation. Speciation involves the determination and quantitation of the various chemical forms of a particular element. A host of HPLC-ICP-MS techniques may be used to obtain this information. This brief report will focus on the most recent work in this area, with emphasis on the work done in our laboratory. -Environ Health Perspect 1 03(Suppl 1): 21-23 (1995)

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Elimination of the argon chloride interference on arsenic speciation in inductively coupled plasma mass spectrometry using ion chromatography

Cited by 67 publications

References 9 publications

Use of an inline dilution method to eliminate species interconversion for LC-ICP-MS based applications: focus on arsenic in urine

Use of an inline dilution method to eliminate species interconversion for LC-ICP-MS based applications: focus on arsenic in urine

Electroanalysis of Trace Inorganic Arsenic with Gold Nanoelectrode Ensembles

Trace metals speciation by HPLC with plasma source mass spectrometry detection.

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