Calcium content of individual, microscopic, (sub) nanoliter volume Paramecium sp. cells using rhenium-cup in-torch vaporization (ITV) sample introduction and axially viewed ICP-AES

Badiei, Hamid R.; Rutzke, Michael; Karanassios, Vassili

doi:10.1039/b203352f

Cited by 13 publications

(4 citation statements)

References 10 publications

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“…4, 2007 Recently ITV was coupled to axially viewed systems and the precision and detection limits obtained from single element solutions were impressive. [80][81][82] Sample is deposited onto or into a rhenium probe and the probe is inserted into a small volume vaporization chamber that is attached to a typical ICP OES torch. Micro-samples of liquids, slurries, or solids are dried, charred and vaporized into the chamber by applying progressively higher electrical power levels.…”

Section: Sample Introduction Systems and Torches For Icp Oes With Aximentioning

confidence: 99%

Inductively coupled plasma optical emission spectrometry with axially viewed configuration: an overview of applications

Trevizan¹,

Nóbrega²

2007

J. Braz. Chem. Soc.

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Geralmente aceita-se que espectrômetros de emissão óptica com plasma acoplado indutivamente (ICP OES) com configuração axial apresentam efeitos de matriz mais severos quando comparados aos equipamentos com configuração radial, embora gerem menores limites de detecção. Entretanto, o desenvolvimento de detectores de estado sólido associado ao arranjo óptico Littrow com rede echelle e interfaces apropriadas para remoção da zona fria do plasma vêm possibilitando a expansão do uso dessa configuração. Nesta revisão são discutidos trabalhos publicados no período de 1999 a 2006 que fazem uso da configuração axial para avaliação dos efeitos de matriz, otimização das condições de operação e análise de diversos tipos de amostras, incluindo a introdução de amostras complexas, tais como suspensões.It is generally assumed that inductively coupled plasma optical emission spectrometers (ICP OES) with axial configuration present severe matrix effects when compared to radially viewed ones, although lower detection limits are obtained. However, the development of solid state detectors associated with a Littrow optical arrangement with an echelle grating and proper interfaces for plasma tail cut off led to an increase of analytical applications based on axially viewed configuration. In this review, papers published from 1999 to 2006 using this configuration for matrix effects evaluation, optimization of the operating conditions and analysis of complex samples, such as slurries, are discussed.

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Section: Sample Introduction Systems and Torches For Icp Oes With Aximentioning

confidence: 99%

Inductively coupled plasma optical emission spectrometry with axially viewed configuration: an overview of applications

Trevizan¹,

Nóbrega²

2007

J. Braz. Chem. Soc.

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“…The improvement in detection limits enabled direct elemental analysis from sub-micro amounts of sample. For example, of the Ca content of a 0.1 nL volume individual Paramecium cell 12 and of the Ca and Mg content in 10 pL (y8 ng) microscopic, single grains of pollen, thus further expanding the analytical capabilities of the ICP to include, potentially, other solid nano-samples as well. It would be interesting to see if the typical differential thermal vaporization of ETV 6,7 may be applied to ITV as well, so as to address (some) of the matrix effects reported for axially viewed ICP-AES.…”

Section: Discussionmentioning

confidence: 99%

Rhenium-cup, in-torch vaporization (ITV) sample introduction for axially viewed ICP-AES and its application to the analysis of a microscopic, ng-weight solid sample

Badiei

Smith

Karanassios

2002

J. Anal. At. Spectrom.

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“…A Spectro Ciros CCD ICP-OES (Spectro Analytical Instruments, Kleve, Germany) with axial plasma viewing similar to previous systems was used. 2,3,7 A significant modification to the system was the installation of a short depth-of-field lens system [20][21][22][23] allowing a more uniform region of the plasma to be viewed. Instrument settings optimized for final performance are shown in Table 2.…”

Section: Experimental Axial Icp Aesmentioning

confidence: 99%

“…This system produces equivalent signal : noise ratios to conventional axial ICP with lower blank %RSD enabling analysis of rare earth and similar elements, including those with sensitive lines in the VUV region. 22,23 One such element with sensitive VUV lines of particular concern in biological situations is chlorine. 2 Worldwide, approximately 4 Â 10 8 ha of land are affected by excess salinity (as NaCl) due to deforestation, irrigation, and consequent rising groundwaters.…”

Section: Introductionmentioning

confidence: 99%

Chloride analysis of botanical samples by ICP-OES

Wheal

Palmer

2010

J. Anal. At. Spectrom.

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A unique method for chloride analysis of botanical samples by axially viewed ICP-OES with a modified optical system is described. Calibration on the most sensitive wavelength (134.7 nm) between 1 and 200 mg Cl L À1 yielded a curvilinear relationship (R 2 ¼ 1.000) across three orders of magnitude. The instrumental limits of detection in solution of 0.041 mg L À1 and background equivalent concentration of 5.29 mg L À1 are similar to those of other methods using pneumatic nebulisers. Matrix matching of calibration standards with respect to nitric acid concentration (4% v/v) and carbon levels (0.15% sucrose m/v) of extracted sample solutions produced consistent responses from plant material. High carbon concentrations (up to 8% sucrose m/v) caused matrix interferences that decreased blank values by 4.5 mg L À1 and suppressed Cl signals by 20%. No interferences from countercations were observed. A simple extraction process for dried plant samples (0.1 g in 40 mL of 4% HNO 3 ) was developed and tested with plant standard reference materials. Recovery of Cl from the majority of materials was close to 100% of established values while relative standard deviations were below 4% except when chloride concentration was close to the method detection limit. The extraction method was robust to modifications for samples with low mass or high Cl concentrations.

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Calcium content of individual, microscopic, (sub) nanoliter volume Paramecium sp. cells using rhenium-cup in-torch vaporization (ITV) sample introduction and axially viewed ICP-AES

Cited by 13 publications

References 10 publications

Inductively coupled plasma optical emission spectrometry with axially viewed configuration: an overview of applications

Inductively coupled plasma optical emission spectrometry with axially viewed configuration: an overview of applications

Rhenium-cup, in-torch vaporization (ITV) sample introduction for axially viewed ICP-AES and its application to the analysis of a microscopic, ng-weight solid sample

Chloride analysis of botanical samples by ICP-OES

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