Introduction of gaseous hydrides into an inductively coupled plasma mass spectrometer

Powell, M. J.; Boomer, D. W.; McVicars, R. J.

doi:10.1021/ac00126a061

Cited by 54 publications

(26 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Vapor generation (VG) is one of the sample introduction techniques that are currently employed in ICP-MS. Several reports have showed that the sensitivity and detection limits of vapor-forming elements are greatly improved when they are introduced into the plasma as vapors. [1][2][3][4][5] Additionally, it was also shown that appropriate vapor generation conditions can be used to remove or separate the analyte from problematic matrix species which would otherwise cause spectral and non spectral interferences. 5,6 Vapor introduction in flow injection mode is a simple and rapid technique that has been coupled to ICP-MS previously.…”

Section: Introductionmentioning

confidence: 99%

Determination of Hg and Pb in Fuels by Inductively Coupled Plasma Mass Spectrometry Using Flow Injection Chemical Vapor Generation

Chen

Jiang

2009

ANAL. SCI.

View full text Add to dashboard Cite

An isotope dilution inductively coupled plasma mass spectrometry (ICP-MS) method has been developed for the determination of Hg and Pb in fuels using flow injection vapor generation (VG) as the sample introduction system. A simple and inexpensive in-situ nebulizer/vapor generator was employed in this study. An emulsion containing 10% v/v fuel, 2% m/v Triton X-100 and 1.0% m/v tartaric acid was injected into VG-ICP-MS system for the determination of Hg and Pb. Sodium borohydride was used for vapor generation. Since the sensitivities of Hg and Pb in emulsion and those in aqueous solution are quite different, isotope dilution and standard addition methods were used for the determination of Hg and Pb in selected fuel samples. The influences of vapor generation conditions and emulsion preparation on the ion signals are reported. This method has been applied for the determination of Hg and Pb in various fuel samples such as diesel, gasoline and engine oil obtained locally. The analytical results obtained by isotope dilution and standard addition methods were in good agreement with each other and also with those of digested samples analyzed by pneumatic nebulization ICP-MS. Under the optimum operating conditions, the detection limits obtained were 0.02 and 0.03 ng mL -1 for Hg and Pb, respectively, in prepared emulsified solutions, corresponding to 0.2 and 0.3 ng mL -1 of Hg and Pb, respectively, in the original fuel samples.

show abstract

Section: Introductionmentioning

confidence: 99%

Determination of Hg and Pb in Fuels by Inductively Coupled Plasma Mass Spectrometry Using Flow Injection Chemical Vapor Generation

Chen

Jiang

2009

ANAL. SCI.

View full text Add to dashboard Cite

show abstract

“…Ion lenses were optimized for maximum ion counts for mercury. Earlier studies have reported that settings for the ion focus lens affected the signal strength of the analyte ion, with lens B being the most critical for sensitivity and precision (6). Digipot settings found optimal in our hands are described under instrumental parameters/conditions above (see Materials and Methods).…”

Section: Instrumental Conditionsmentioning

confidence: 97%

A simple ICP‐MS procedure for the determination of total mercury in whole blood and urine

Kalamegham

Ash

1992

Clinical Laboratory Analysis

View full text Add to dashboard Cite

A simple and sensitive procedure for total mercury in whole blood and urine using inductively coupled plasma-mass spectrometry (ICP-MS) is described. Specimens are prepared by precipitation-extraction with 50% v/v hydrochloric acid containing EDTA and cysteine, centrifuged, and filtered through fritended screening column; the filtrates are directly analyzed by ICP-MS. The method is linear between 2 and 200 micrograms/L in the specimen with an absolute sensitivity of 0.2 microgram/L in the final supernatant. The assay variability at various concentrations (microgram/L) of mercury are as follows: intra-assay whole blood (n = 20)-4.6 +/- 0.6 (c.v. 12.3%), 18.3 +/- 1.1 (c.v. 6.1%), 56.4 +/- 2.8 (c.v. 5.0%); inter-assay whole blood (n = 15)-5.7 +/- 1.0 (c.v. 16.8%), 19.7 +/- 2.7 (c.v. 13.5%), and 50.1 +/- 6.9 (c.v. 13.7%); urine (n = 20)-9.3 +/- 1.2 (c.v. 12.9%), 29.6 +/- 2.2 (c.v. 7.4%). Recovery of organic and inorganic mercury from blood samples ranges from 91.6% to 110.2%. The method is suitable for analysis of total mercury, both organic and inorganic, in whole blood and urine.

show abstract

“…Vapour generation (VG) is one of the sample introduction techniques that was reported to improve the sensitivity and detection limits of vapour-forming elements when they are introduced into the plasma as vapours. 1,2 Additionally, it was also shown that vapour generation can remove or separate analyte from problematic matrix species which would otherwise cause spectral and non-spectral interferences. 3,4 Vapour introduction in flow injection mode is a simple and rapid technique that has been coupled to ICP-MS previously.…”

Section: Introductionmentioning

confidence: 99%

Determination of As, Cd and Hg in emulsified vegetable oil by flow injection chemical vapour generation inductively coupled plasma mass spectrometry

Chang

Jiang

2008

J. Anal. At. Spectrom.

View full text Add to dashboard Cite

An inductively coupled plasma mass spectrometry (ICP-MS) method has been developed for the determination of As, Cd and Hg in vegetable oils using flow injection vapour generation (VG). An oil emulsion containing 10% m/v vegetable oil, 2% v/v Triton X-100 and 1.2% v/v HCl was injected into a VG-ICP-MS system for the determination of As, Cd and Hg. The quantifications have been carried out using standard addition and isotope dilution methods. The influences of vapour generation conditions and emulsion preparation on the ion signals were reported. This method has been applied for the determination of As, Cd and Hg in soybean oil and peanut oil samples obtained from a local market. The analytical results of various vegetable oil samples determined by standard addition and isotope dilution methods were in good agreement with those of digested samples analysed by pneumatic nebulization ICP-MS. Under the optimum operating conditions, the detection limit obtained from the standard addition curve was 0.01, 0.04 and 0.04 ng g À1 for As, Cd and Hg, respectively, in the original oil samples.

show abstract

Introduction of gaseous hydrides into an inductively coupled plasma mass spectrometer

Cited by 54 publications

References 6 publications

Determination of Hg and Pb in Fuels by Inductively Coupled Plasma Mass Spectrometry Using Flow Injection Chemical Vapor Generation

Determination of Hg and Pb in Fuels by Inductively Coupled Plasma Mass Spectrometry Using Flow Injection Chemical Vapor Generation

A simple ICP‐MS procedure for the determination of total mercury in whole blood and urine

Determination of As, Cd and Hg in emulsified vegetable oil by flow injection chemical vapour generation inductively coupled plasma mass spectrometry

Contact Info

Product

Resources

About